0000105634-26-000046 | 10-Q | XBRL Viewer

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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- Definition

Amount of equity (deficit) attributable to parent and noncontrolling interest. Excludes temporary equity.

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+ Details

Condensed Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Statement of Cash Flows [Abstract]
Restricted cash	$ 0.8	$ 0.8

Debt (Narrative) (Details) - USD ($)		3 Months Ended	12 Months Ended
Debt (Narrative) (Details) - USD ($)	Dec. 20, 2023	Mar. 31, 2026	Dec. 31, 2025
Line of Credit Facility [Line Items]
Finance lease liabilities		$ 6,100,000	$ 6,300,000
Finance lease liabilities, current		$ 2,400,000	$ 2,400,000
Other accrued expenses and liabilities		Other Liabilities, Current	Other Liabilities, Current
Finance lease liabilities, long-term		$ 3,700,000	$ 3,900,000
Other long-term obligations		Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Letters of credit outstanding (in US dollars)		$ 73,100,000	$ 73,100,000
Interest rate description		At the Company’s election, borrowings under the 2023 Revolving Credit Facility bear interest at either: (1) a base rate plus a margin of 0.125% to 0.875%, depending on the Company’s Leverage Ratio (as such term is defined in the 2023 Credit Agreement), or (2) a rate equal to the secured overnight financing rate as administered by the Federal Reserve Bank of New York for the applicable tenor plus 0.10% (“Adjusted Term SOFR”) plus a margin of 1.125% to 1.875%, depending on the Company’s Leverage Ratio. The base rate is determined by the greater of: (a) the prime commercial lending rate announced by Bank of Montreal from time to time, (b) the federal funds effective rate, plus 1/2 of 1.00%, (c) Adjusted Term SOFR for a one-month tenor, plus 1.00%, or (d) 0.00%.
2023 Credit Agreement
Line of Credit Facility [Line Items]
Credit agreement, initiation date	Dec. 20, 2023
Expiration date of credit agreement		Dec. 20, 2028
Base Rate \| Minimum [Member] \| 2023 Revolving Credit Facility
Line of Credit Facility [Line Items]
Basis spread on variable rate		0.125%
Base Rate \| Maximum [Member] \| 2023 Revolving Credit Facility
Line of Credit Facility [Line Items]
Basis spread on variable rate		0.875%
Adjusted Term SOFR \| Minimum [Member] \| 2023 Revolving Credit Facility
Line of Credit Facility [Line Items]
Basis spread on variable rate		1.125%
Adjusted Term SOFR \| Maximum [Member] \| 2023 Revolving Credit Facility
Line of Credit Facility [Line Items]
Basis spread on variable rate		1.875%
Credit Agreement Base Rate, Federal Funds Rate \| 2023 Revolving Credit Facility
Line of Credit Facility [Line Items]
Basis spread on variable rate		0.50%
Credit Agreement Base Rate, Adjusted Term SOFR One Month Tenor Rate \| 2023 Revolving Credit Facility
Line of Credit Facility [Line Items]
Basis spread on variable rate		1.00%
Credit Agreement, 0% Base Rate \| 2023 Revolving Credit Facility
Line of Credit Facility [Line Items]
Basis spread on variable rate		0.00%
Secured Overnight Financing Rate (SOFR) \| 2023 Revolving Credit Facility
Line of Credit Facility [Line Items]
Basis spread on variable rate		0.10%
Revolving Credit Facility [Member] \| 2023 Revolving Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility maximum borrowing capacity (in US dollars)	$ 1,300,000,000
Increase in borrowing capacity (in US dollars)		$ 900,000,000
Letters of credit maximum borrowing capacity (in US dollars)		600,000,000.0
Borrowings under revolving credit facility (in US dollars)		$ 0	$ 0
Commitment fee percentage of unused amount		0.125%	0.125%
Revolving Credit Facility [Member] \| Minimum [Member] \| 2023 Revolving Credit Facility
Line of Credit Facility [Line Items]
Commitment fee percentage of unused amount		0.125%
Letter of credit fees		0.85%
Revolving Credit Facility [Member] \| Maximum [Member] \| 2023 Revolving Credit Facility
Line of Credit Facility [Line Items]
Commitment fee percentage of unused amount		0.25%
Letter of credit fees		1.875%

Earnings Per Share

3 Months Ended

Mar. 31, 2026

Earnings Per Share [Abstract]

Earnings Per Share

Calculation of Basic and Diluted Earnings per Common Share

The following table summarizes our calculation of Basic and Diluted Earnings per Common Share (“EPS”) for the three months ended March 31, 2026 and 2025 (in thousands, except share and per share data):


	For the three months ended March 31,
	2026		2025
Numerator:
Net income	$	305,484	$	240,677
Denominator:
Weighted average shares outstanding used to compute basic earnings per common share	44,564,932		45,634,877
Effect of dilutive securities—Share-based awards	122,225		149,358
Shares used to compute diluted earnings per common share	44,687,157		45,784,235

Basic earnings per common share	$	6.85	$	5.27

Diluted earnings per common share	$	6.84	$	5.26

There were no anti-dilutive share-based awards for the three months ended March 31, 2026. However, the number of share-based awards excluded from the computation of diluted EPS for the three months ended March 31, 2025 because they would be anti-dilutive was 21,080.

Fair Value Measurements (Policy)	3 Months Ended
Fair Value Measurements (Policy)	Mar. 31, 2026
Fair Value Disclosures [Abstract]
Fair Value Measurements	For disclosure purposes, we utilize a fair value hierarchy to categorize qualifying assets and liabilities into three broad levels based on the priority of the inputs used to determine their fair values. The hierarchy, which gives the highest priority to unadjusted quoted prices in active markets for identical assets and liabilities and the lowest priority to unobservable inputs, is comprised of the following three levels: Level 1 – Unadjusted quoted prices in active markets for identical assets and liabilities. Level 2 – Observable inputs, other than Level 1 inputs, that are directly or indirectly observable for the asset or liability, including quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets or liabilities in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable. Level 3 – Significant unobservable inputs that reflect the reporting entity’s own assumptions.

Inventories (Tables)

3 Months Ended

Mar. 31, 2026

Inventory Disclosure [Abstract]

Inventories

Inventories in the accompanying Consolidated Balance Sheets consisted of the following amounts as of March 31, 2026 and December 31, 2025 (in thousands):


	March 31, 2026		December 31, 2025
Raw materials and construction materials	$	119,897	$	119,789
Work in process	10,311		6,463
Inventories	$	130,208	$	126,252

Acquisitions and Dispositions Of Businesses (Details)
$ in Thousands

3 Months Ended

12 Months Ended

Feb. 03, 2025

USD ($)

Mar. 31, 2026

USD ($)

Company

Dec. 31, 2025

USD ($)

Company

Mar. 31, 2025

USD ($)

Business Combination [Line Items]

Number of businesses acquired | Company

Goodwill

$ 1,433,937

$ 1,412,414

MillerElectric

Business Combination [Line Items]

Purchase price

$ 876,800

Goodwill

^[1]

326,776

Identifiable intangible assets

$ 475,000

Business acquisition, percentage acquired

100.00%

Business acquisition, transaction costs

$ 9,400

2025Acquisitions

Business Combination [Line Items]

Purchase price

182,100

Working capital acquired

2,000

Other net assets

8,200

Goodwill

67,200

Identifiable intangible assets

$ 104,700

[1]	Goodwill is calculated as the excess of the consideration transferred over the fair value of the net assets acquired and represents the projected future economic benefits from this strategic acquisition.

Revenue from Contracts with Customers (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2026	Dec. 31, 2025
Revenue From Contract With Customers [Line Items]
Allowance for credit losses	$ 22,056,000	$ 22,757,000
Increase in net contract liabilities	50,000,000.0
Contract asset impairment	0	$ 0
Remaining performance obligations	15,620,670,000
Minimum [Member]
Revenue From Contract With Customers [Line Items]
Performance obligation satisfied in previous period	1,000,000.0
Change in total estimated cost or anticipated contract value	$ 1,000,000.0

Revenue from Contracts with Customers - Schedule of Contract with Customer, Asset and Liability (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Revenue from Contract with Customer [Abstract]
Contract assets, current	$ 377,332	$ 337,717
Contract assets, non-current	0	0
Contract liabilities, current	(2,417,021)	(2,327,360)
Contract liabilities, non-current	(793)	(837)
Net contract liabilities	$ (2,040,482)	$ (1,990,480)

Revenue from Contracts with Customers - Schedule of Cumulative Catch-Up Adjustment (Details) - USD ($)	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
UNITED STATES
Cumulative Catch-Up Adjustment [Line Items]
Change in total estimated cost or anticipated contract value	$ 8,978,000	$ 15,090,000
UNITED STATES \| United States Electrical Construction And Facilities Services [Member]
Cumulative Catch-Up Adjustment [Line Items]
Change in total estimated cost or anticipated contract value	3,440,000	7,783,000
UNITED STATES \| United States Mechanical Construction And Facilities Services [Member]
Cumulative Catch-Up Adjustment [Line Items]
Change in total estimated cost or anticipated contract value	5,538,000	$ 7,307,000
Minimum [Member]
Cumulative Catch-Up Adjustment [Line Items]
Change in total estimated cost or anticipated contract value	$ 1,000,000.0

Revenue from Contracts with Customers - Schedule of Performance Obligation Satisfied in Previous Period (Details) - USD ($)	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
UNITED STATES
Performance Obligation Satisfied in Previous Period [Line Items]
Performance obligation satisfied in previous period	$ 16,727,000	$ 3,118,000
UNITED STATES \| United States Electrical Construction And Facilities Services [Member]
Performance Obligation Satisfied in Previous Period [Line Items]
Performance obligation satisfied in previous period	7,394,000	0
UNITED STATES \| United States Mechanical Construction And Facilities Services [Member]
Performance Obligation Satisfied in Previous Period [Line Items]
Performance obligation satisfied in previous period	9,333,000	$ 3,118,000
Minimum [Member]
Performance Obligation Satisfied in Previous Period [Line Items]
Performance obligation satisfied in previous period	$ 1,000,000.0

Basis Of Presentation	3 Months Ended
Basis Of Presentation	Mar. 31, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis Of Presentation	Basis of Presentation The accompanying unaudited consolidated financial statements have been prepared in accordance with instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Consequently, certain information and note disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) have been condensed or omitted. References to the “Company,” “EMCOR,” “we,” “us,” “our,” and similar words refer to EMCOR Group, Inc. and its consolidated subsidiaries unless the context indicates otherwise. Readers of this report should refer to the consolidated financial statements and the notes thereto included in our latest Annual Report on Form 10-K filed with the Securities and Exchange Commission. In our opinion, the accompanying unaudited consolidated financial statements contain all adjustments (consisting only of those of a normal recurring nature) necessary to present fairly our financial position and the results of our operations. The results of operations of companies acquired have been included in our results of operations from the date of their respective acquisition by us. On December 1, 2025, we sold EMCOR (UK) Limited and EMCOR Group (UK) plc, which collectively represented our United Kingdom building services segment (collectively, “EMCOR UK”). The results of operations for the three months ended March 31, 2026 are not necessarily indicative of the results to be expected for the year ending December 31, 2026.

Income Taxes (Tables)

3 Months Ended

Mar. 31, 2026

Income Tax Disclosure [Abstract]

Schedule of Income Tax Provision

The following table presents our income tax provision and our income tax rate for the three months ended March 31, 2026 and 2025 (in thousands, except percentages):


	For the three months ended March 31,
	2026			2025
Income tax provision	$	104,588		$	83,520
Income tax rate	25.5		%	25.8		%

Revenue from Contracts with Customers - Schedule of Revenue, Remaining Performance Obligations (Details) $ in Thousands	Mar. 31, 2026 USD ($)
Schedule of Remaining Performance Obligations [Line Items]
Remaining performance obligations	$ 15,620,670
Remaining performance obligations, percent	100.00%
UNITED STATES \| United States Electrical Construction And Facilities Services [Member]
Schedule of Remaining Performance Obligations [Line Items]
Remaining performance obligations	$ 5,613,652
Remaining performance obligations, percent	36.00%
UNITED STATES \| United States Mechanical Construction And Facilities Services [Member]
Schedule of Remaining Performance Obligations [Line Items]
Remaining performance obligations	$ 8,563,253
Remaining performance obligations, percent	55.00%
UNITED STATES \| United States Building Services [Member]
Schedule of Remaining Performance Obligations [Line Items]
Remaining performance obligations	$ 1,307,689
Remaining performance obligations, percent	8.00%
UNITED STATES \| United States Industrial Services [Member]
Schedule of Remaining Performance Obligations [Line Items]
Remaining performance obligations	$ 136,076
Remaining performance obligations, percent	1.00%

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Numerator
Net income	$ 305,484	$ 240,677
Denominator
Weighted average shares outstanding used to compute basic earnings per common share (in shares)	44,564,932	45,634,877
Effect of dilutive securities-Share-based awards (in shares)	122,225	149,358
Shares used to compute diluted earnings per common share (in shares)	44,687,157	45,784,235
Basic earnings per common share (in US dollars per share)	$ 6.85	$ 5.27
Diluted earnings per common share (in US dollars per share)	$ 6.84	$ 5.26
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive share-based awards excluded from calculation of diluted earnings per share (in shares)	0	21,080

Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2026

Earnings Per Share [Abstract]

Calculation Of Basic And Diluted Earnings Per Common Share


	For the three months ended March 31,
	2026		2025
Numerator:
Net income	$	305,484	$	240,677
Denominator:
Weighted average shares outstanding used to compute basic earnings per common share	44,564,932		45,634,877
Effect of dilutive securities—Share-based awards	122,225		149,358
Shares used to compute diluted earnings per common share	44,687,157		45,784,235

Basic earnings per common share	$	6.85	$	5.27

Diluted earnings per common share	$	6.84	$	5.26

Revenue from Contracts with Customers (Policy)	3 Months Ended
Revenue from Contracts with Customers (Policy)	Mar. 31, 2026
Revenue from Contract with Customer [Abstract]
Revenue Recognition	The Company recognizes revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which we expect to be entitled in exchange for those goods or services by applying the following five step model: (1) Identify the contract with a customer A contract with a customer exists when: (a) the parties have approved the contract and are committed to perform their respective obligations, (b) the rights of the parties can be identified, (c) payment terms can be identified, (d) the arrangement has commercial substance, and (e) collectability of consideration is probable. Judgment is required when determining if the contractual criteria are met, specifically in the earlier stages of a project when a formally executed contract may not yet exist. In these situations, the Company evaluates all relevant facts and circumstances, including the existence of other forms of documentation or historical experience with our customers that may indicate a contractual agreement is in place and revenue should be recognized. In determining if the collectability of consideration is probable, the Company considers the customer’s ability and intention to pay such consideration through an evaluation of several factors, including an assessment of the creditworthiness of the customer and our prior collection history with such customer. NOTE 3 - Revenue from Contracts with Customers (Continued) (2) Identify the performance obligations in the contract At contract inception, the Company assesses the goods or services promised in a contract and identifies, as a separate performance obligation, each distinct promise to transfer goods or services to the customer. The identified performance obligations represent the “unit of account” for purposes of determining revenue recognition. In order to properly identify separate performance obligations, the Company applies judgment in determining whether each good or service provided is: (a) capable of being distinct, whereby the customer can benefit from the good or service either on its own or together with other resources that are readily available to the customer, and (b) distinct within the context of the contract, whereby the transfer of the good or service to the customer is separately identifiable from other promises in the contract. In addition, when assessing performance obligations within a contract, the Company considers the warranty provisions included within such contract. To the extent the warranty terms provide the customer with an additional service, other than assurance that the promised good or service complies with agreed upon specifications, such warranty is accounted for as a separate performance obligation. In determining whether a warranty provides an additional service, the Company considers each warranty provision in comparison to warranty terms which are standard in the industry. Our contracts are often modified through change orders to account for changes in the scope and price of the goods or services we are providing. Although the Company evaluates each change order to determine whether such modification creates a separate performance obligation, the majority of our change orders are for goods or services that are not distinct within the context of our original contract and, therefore, are not treated as separate performance obligations. (3) Determine the transaction price The transaction price represents the amount of consideration to which the Company expects to be entitled in exchange for transferring promised goods or services to our customers. The consideration promised within a contract may include fixed amounts, variable amounts, or both. To the extent the performance obligation includes variable consideration, including contract bonuses and penalties that can either increase or decrease the transaction price, the Company estimates the amount of variable consideration to be included in the transaction price utilizing one of two prescribed methods, depending on which method better predicts the amount of consideration to which the entity will be entitled. Such methods include: (a) the expected value method, whereby the amount of variable consideration to be recognized represents the sum of probability-weighted amounts in a range of possible consideration amounts, and (b) the most likely amount method, whereby the amount of variable consideration to be recognized represents the single most likely amount in a range of possible consideration amounts. When applying these methods, the Company considers all information that is reasonably available, including historical, current, and estimates of future performance. The expected value method is typically utilized in situations where a contract contains a large number of possible outcomes while the most likely amount method is typically utilized in situations where a contract has only two possible outcomes. Variable consideration is included in the transaction price only to the extent it is probable, in the Company’s judgment, that a significant future reversal in the amount of cumulative revenue recognized under the contract will not occur when the uncertainty associated with the variable consideration is subsequently resolved. This threshold is referred to as the variable consideration constraint. In assessing whether to apply the variable consideration constraint, the Company considers if factors exist that could increase the likelihood or the magnitude of a potential reversal of revenue, including, but not limited to, whether: (a) the amount of consideration is highly susceptible to factors outside of the Company’s influence, such as the actions of third parties, (b) the uncertainty surrounding the amount of consideration is not expected to be resolved for a long period of time, (c) the Company’s experience with similar types of contracts is limited or that experience has limited predictive value, (d) the Company has a practice of either offering a broad range of price concessions or changing the payment terms and conditions of similar contracts in similar circumstances, and (e) the contract has a large number and broad range of possible consideration amounts. Pending change orders represent one of the most common forms of variable consideration included within contract value and typically represent contract modifications for which a change in scope has been authorized or acknowledged by our customer but the final adjustment to contract price is yet to be negotiated. In estimating the transaction price for pending change orders, the Company considers all relevant facts, including documented correspondence with the customer regarding acknowledgment of and/or agreement with the modification, as well as historical experience with the customer or similar contractual circumstances. Based upon this assessment, the Company estimates the transaction price, including whether the variable consideration constraint should be applied. NOTE 3 - Revenue from Contracts with Customers (Continued) Contract claims are another form of variable consideration which is common within our industry. Claim amounts represent revenue that has been recognized for contract modifications that are not submitted or are in dispute as to both scope and price. In estimating the transaction price for claims, the Company considers all relevant facts available. However, given the uncertainty surrounding claims, including the potential long-term nature of dispute resolution and the broad range of possible consideration amounts, there is an increased likelihood that any additional contract revenue associated with contract claims is constrained. The resolution of claims involves negotiations and, in certain cases, litigation. In the event litigation costs are incurred by us in connection with claims, such litigation costs are expensed as incurred, although we may seek to recover these costs. For some transactions, the receipt of consideration does not match the timing of the transfer of goods or services to the customer. For such contracts, the Company evaluates whether this timing difference represents a financing arrangement within the contract. Although rare, if a contract is determined to contain a significant financing component, the Company adjusts the promised amount of consideration for the effects of the time value of money when determining the transaction price of such contract. Although our customers may retain a portion of the contract price until completion of the project and final contract settlement, these retainage amounts are not considered a significant financing component as the intent of the withheld amounts is to provide the customer with assurance that we will complete our obligations under the contract rather than to provide financing to the customer. In addition, although we may be entitled to advanced payments from our customers on certain contracts, these advanced payments generally do not represent a significant financing component as the payments are used to meet working capital demands that can be higher in the early stages of a contract, as well as to protect us from our customer failing to meet its obligations under the contract. Changes in the estimates of transaction prices are recognized on a cumulative catch-up basis in the period in which the revisions to the estimates are made. Such changes in estimates can result in the recognition of revenue in a current period for performance obligations which were satisfied or partially satisfied in prior periods. Such changes in estimates may also result in the reversal of previously recognized revenue if the ultimate outcome differs from the Company’s previous estimate. (4) Allocate the transaction price to the performance obligations in the contract For contracts that contain multiple performance obligations, the Company allocates the transaction price to each performance obligation based on a relative standalone selling price. The Company determines the standalone selling price based on the price at which the performance obligation would have been sold separately in similar circumstances to similar customers. If the standalone selling price is not observable, the Company estimates the standalone selling price taking into account all available information such as market conditions and internal pricing guidelines. In certain circumstances, the standalone selling price is determined using an expected profit margin on anticipated costs related to the performance obligation. (5) Recognize revenue as performance obligations are satisfied The Company recognizes revenue at the time the related performance obligation is satisfied by transferring a promised good or service to its customers. A good or service is considered to be transferred when the customer obtains control. The Company can transfer control of a good or service and satisfy its performance obligations either over time or at a point in time. The Company transfers control of a good or service over time and, therefore, satisfies a performance obligation and recognizes revenue over time if one of the following three criteria are met: (a) the customer simultaneously receives and consumes the benefits provided by the Company’s performance as we perform, (b) the Company’s performance creates or enhances an asset that the customer controls as the asset is created or enhanced, or (c) the Company’s performance does not create an asset with an alternative use to us, and we have an enforceable right to payment for performance completed to date. For our performance obligations satisfied over time, we recognize revenue by measuring the progress toward complete satisfaction of that performance obligation. The selection of the method to measure progress towards completion can be either an input method or an output method and requires judgment based on the nature of the goods or services to be provided. NOTE 3 - Revenue from Contracts with Customers (Continued) For our construction contracts, revenue is generally recognized over time as our performance creates or enhances an asset that the customer controls as it is created or enhanced. Our fixed price construction projects generally use a cost-to-cost input method to measure our progress towards complete satisfaction of the performance obligation as we believe it best depicts the transfer of control to the customer which occurs as we incur costs on our contracts. Under the cost-to-cost measure of progress, the extent of progress towards completion is measured based on the ratio of costs incurred to date to the total estimated costs at completion of the performance obligation. For our unit price construction contracts, progress towards complete satisfaction is measured through an output method, such as the number of units produced or delivered, when our performance does not produce significant amounts of work in process or finished goods prior to complete satisfaction of such performance obligations. For our services contracts, revenue is also generally recognized over time as the customer simultaneously receives and consumes the benefits of our performance as we perform the service. For our fixed price service contracts with specified service periods, revenue is generally recognized on a straight-line basis over such service period when our inputs are expended evenly and the customer receives and consumes the benefits of our performance throughout the contract term. The timing of revenue recognition for the manufacturing of new build heat exchangers within our United States industrial services segment depends on the payment terms of the contract, as our performance does not create an asset with an alternative use to us. For those contracts for which we have a right to payment for performance completed to date at all times throughout our performance, inclusive of a cancellation, we recognize revenue over time. For these performance obligations, we use a cost-to-cost input method to measure our progress towards complete satisfaction of the performance obligation as we believe it best depicts the transfer of control to the customer which occurs as we incur costs on our contracts. However, for those contracts for which we do not have a right, at all times, to payment for performance completed to date, we recognize revenue at the point in time when control is transferred to the customer. For bill-and-hold arrangements, revenue is recognized when the customer obtains control of the heat exchanger, which may be prior to shipping if certain recognition criteria are met. For certain of our revenue streams, such as call-out repair and service work, outage services, refinery turnarounds, and specialty welding services that are performed under time and materials contracts, our progress towards complete satisfaction of such performance obligations is measured using an output method as the customer receives and consumes the benefits of our performance completed to date. Changes in Estimates Due to uncertainties inherent in the estimation process, as well as the significant judgment involved in determining variable consideration, it is possible that estimates of costs to complete a performance obligation, and/or our estimates of transaction prices, will be revised in the near term. For those performance obligations for which revenue is recognized using a cost-to-cost input method, changes in total estimated costs, and related progress towards complete satisfaction of the performance obligation, or changes in the estimate of transaction prices, are recognized on a cumulative catch-up basis in the period in which the revisions to the estimates are made. When the current estimate of total costs for a performance obligation indicates a loss, a provision for the entire estimated loss on the unsatisfied performance obligation is made in the period in which the loss becomes evident.
Accounts Receivable and Allowance for Credit Losses	Accounts receivable are recognized in the period we deliver goods and services to our customers or when our right to consideration is unconditional. The Company maintains an allowance for credit losses to reduce outstanding receivables to their net realizable value. Judgment is required when determining expected credit losses. Estimates of such losses are recorded when we believe a customer, or group of customers, may not be able to meet their financial obligations due to deterioration in financial condition or credit rating. Factors relevant to our assessment include our prior collection history with our customers, the related aging of past due balances, projections of credit losses based on historical trends in credit quality indicators or past events, and forecasts of future economic conditions. In addition to monitoring delinquent accounts, management reviews the credit quality of its receivables by, among other things, obtaining credit ratings of significant customers, assessing economic and market conditions, and evaluating material changes to a customer’s business, cash flows, and financial condition.

- Definition

Disclosure of accounting policy for credit loss on financial instrument measured at amortized cost basis, net investment in lease, off-balance sheet credit exposure, and available-for-sale debt security. Includes, but is not limited to, methodology used to estimate allowance for credit loss, how writeoff of uncollectible amount is recognized, and determination of past due status and nonaccrual status.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
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Reference 12: http://www.xbrl.org/2003/role/disclosureRef
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Reference 13: http://www.xbrl.org/2003/role/disclosureRef
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Reference 14: http://www.xbrl.org/2003/role/disclosureRef
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Reference 15: http://www.xbrl.org/2003/role/disclosureRef
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Reference 18: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Revenue from Contracts with Customers - Schedule of Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses	$ 22,056		$ 22,757
Provision for credit losses	395	$ 4,718
Amounts written off against the allowance, net of recoveries	$ (1,096)

Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
Income Taxes (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Operating Loss Carryforwards [Line Items]
Federal income tax rate, percent	21.00%
Unrecognized income tax benefits	$ 0.0	$ 0.0

Fair Value Measurements

3 Months Ended

Mar. 31, 2026

Fair Value Disclosures [Abstract]

Fair Value Measurements

For disclosure purposes, we utilize a fair value hierarchy to categorize qualifying assets and liabilities into three broad levels based on the priority of the inputs used to determine their fair values. The hierarchy, which gives the highest priority to unadjusted quoted prices in active markets for identical assets and liabilities and the lowest priority to unobservable inputs, is comprised of the following three levels:

Level 1 – Unadjusted quoted prices in active markets for identical assets and liabilities.

Level 2 – Observable inputs, other than Level 1 inputs, that are directly or indirectly observable for the asset or liability, including quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets or liabilities in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable.

Level 3 – Significant unobservable inputs that reflect the reporting entity’s own assumptions.

Recurring Fair Value Measurements

The following tables summarize the assets and liabilities carried at fair value measured on a recurring basis as of March 31, 2026 and December 31, 2025 (in thousands):


	Assets at Fair Value as of March 31, 2026
Asset Category	Level 1		Level 2		Level 3		Total
Cash and cash equivalents (1)	$	916,420	$	—	$	—	$	916,420
Deferred compensation plan assets (2)	84,031		—		—		84,031
Total	$	1,000,451	$	—	$	—	$	1,000,451


	Assets at Fair Value as of December 31, 2025
Asset Category	Level 1		Level 2		Level 3		Total
Cash and cash equivalents (1)	$	1,111,968	$	—	$	—	$	1,111,968
Deferred compensation plan assets (2)	75,627		—		—		75,627
Total	$	1,187,595	$	—	$	—	$	1,187,595

_________________________

(1)Cash and cash equivalents consist of deposit accounts and money market funds with original maturity dates of three months or less, which are Level 1 assets. At March 31, 2026 and December 31, 2025, we had $653.8 million and $870.5 million, respectively, in money market funds. From time to time, we have cash balances in certain of our bank accounts that exceed federally insured limits.

(2)Deferred compensation plan assets are classified as “Other assets” in the Consolidated Balance Sheets.

NOTE 8 - Fair Value Measurements (Continued)

Nonrecurring Fair Value Measurements

We have recorded goodwill and identifiable intangible assets in connection with our business acquisitions. Such assets are measured at fair value at the time of acquisition based on valuation techniques that appropriately represent the methods which would be used by other market participants in determining fair value. We determine the fair value of our trade name intangible assets by utilizing the relief from royalty payments methodology. This approach involves two steps: (a) estimating a reasonable royalty rate for the trade name and (b) applying this royalty rate to a net revenue stream and discounting the resulting cash flows to determine fair value. Key assumptions under this method are future revenues, royalty rate, and discount rate. The fair value of our intangible assets related to contract backlog and customer relationships is determined using the multi-period excess earnings method. Key assumptions in the valuation of customer relationship intangible assets are revenue growth, operating margin, customer attrition rate, and discount rate. Backlog intangible assets are based on future revenue from contracts already awarded at the time of acquisition. Key assumptions in the valuation of backlog intangible assets include operating margin and discount rate. Other assumptions utilized in these valuation techniques include tax rate and contributory asset charges.

In addition, goodwill, intangible assets, and certain other long-lived assets are tested for impairment using similar valuation methodologies to determine the fair value of such assets.

Periodically, we engage an independent third-party valuation specialist to assist with the valuation process, including the selection of appropriate methodologies and the development of market-based assumptions. The inputs used for these nonrecurring fair value measurements represent Level 3 inputs.

Fair Value of Financial Instruments

We believe that the carrying values of our financial instruments, which include accounts receivable and other financing commitments, approximate their fair values due primarily to their short-term maturities and low risk of counterparty default. Although there were no outstanding borrowings under our 2023 Credit Agreement as of March 31, 2026 and December 31, 2025, the carrying value of any debt associated with this agreement would approximate its fair value due to the variable rate on such debt.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(1)
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Schedule of Assets Acquired and Liabilities Assumed (Details) - USD ($)
$ in Thousands

Mar. 31, 2026

Dec. 31, 2025

Feb. 03, 2025

Business Combination [Line Items]

Goodwill

$ 1,433,937

$ 1,412,414

MillerElectric

Business Combination [Line Items]

Cash and cash equivalents

$ 18,394

Accounts receivable

222,355

Contract assets

23,120

Inventories

329

Prepaid expenses and other

7,284

Property, plant, and equipment

10,462

Operating lease right-of-use assets

30,345

Goodwill

^[1]

326,776

Identifiable intangible assets

475,000

Other assets

302

Total assets acquired

1,114,367

Accounts payable

68,147

Contract liabilities

104,595

Accrued payroll and benefits

9,838

Other accrued expenses and liabilitites

22,746

Operating lease liabilities, current

2,573

Operating lease liabilities, long-term

27,771

Other long-term obligations

991

Total liabilities assumed

236,661

Noncontrolling interests

934

Net assets acquired

$ 876,772

[1]	Goodwill is calculated as the excess of the consideration transferred over the fair value of the net assets acquired and represents the projected future economic benefits from this strategic acquisition.

Additional Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Cash paid for:
Interest	$ 667	$ 83
Income taxes	28,150	8,688
Right-of-use assets obtained in exchange for new operating lease liabilities	67,472	65,103
Right-of-use assets obtained in exchange for new finance lease liabilities	$ 299	$ 1,668

Common Stock (Details) - USD ($)	3 Months Ended		174 Months Ended
Common Stock (Details) - USD ($)	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Dec. 31, 2025
Equity, Class of Treasury Stock [Line Items]
Common stock, outstanding	44,439,940		44,439,940	44,520,367
Common stock, issued	41,579	52,275
Dividends declared per common share (in US dollars per share)	$ 0.40	$ 0.25
Stock repurchase, authorized amount (in US dollars)	$ 3,650,000,000		$ 3,650,000,000
Number of shares repurchased	100,000		28,600,000
Stock repurchased (in US dollars)	$ 87,681,000	$ 218,664,000	$ 3,060,000,000.00
Remaining authorized repurchase amount (in US dollars)	592,900,000		$ 592,900,000
Treasury Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Stock repurchased (in US dollars)	$ 87,681,000	$ 218,664,000

- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References + Details

- Definition

+ References + Details

Debt	3 Months Ended
Debt	Mar. 31, 2026
Debt Disclosure [Abstract]
Debt	Debt Excluding finance lease liabilities of $6.1 million at March 31, 2026 and $6.3 million at December 31, 2025, we had no outstanding debt as of March 31, 2026 and December 31, 2025. The current portion of our finance lease liabilities of $2.4 million at March 31, 2026 and December 31, 2025 was included in “Other accrued expenses and liabilities,” and the non-current portion of our finance lease liabilities of $3.7 million and $3.9 million at March 31, 2026 and December 31, 2025, respectively, were included in “Other long-term obligations” in the accompanying Consolidated Balance Sheets. We have a credit agreement dated December 20, 2023 (the “2023 Credit Agreement”), which provides for a $1.30 billion revolving credit facility (the “2023 Revolving Credit Facility”) expiring December 20, 2028. If additional lenders are identified and/or existing lenders are willing to increase their current commitments, we may increase the 2023 Revolving Credit Facility by an amount equal to the greater of: (a) $900 million or (b) the Company’s Adjusted EBITDA (as such term is defined in the 2023 Credit Agreement) for the twelve-month period ending immediately prior to the increase in commitment. We may allocate up to $600.0 million of available capacity under the 2023 Revolving Credit Facility to letters of credit for our account or for the account of any of our subsidiaries. There were no direct borrowings outstanding under the 2023 Revolving Credit Facility as of March 31, 2026 and December 31, 2025. However, outstanding letters of credit reduce the available capacity under this facility and, as of March 31, 2026 and December 31, 2025, we had $73.1 million of letters of credit outstanding. NOTE 7 - Debt (Continued) At the Company’s election, borrowings under the 2023 Revolving Credit Facility bear interest at either: (1) a base rate plus a margin of 0.125% to 0.875%, depending on the Company’s Leverage Ratio (as such term is defined in the 2023 Credit Agreement), or (2) a rate equal to the secured overnight financing rate as administered by the Federal Reserve Bank of New York for the applicable tenor plus 0.10% (“Adjusted Term SOFR”) plus a margin of 1.125% to 1.875%, depending on the Company’s Leverage Ratio. The base rate is determined by the greater of: (a) the prime commercial lending rate announced by Bank of Montreal from time to time, (b) the federal funds effective rate, plus ½ of 1.00%, (c) Adjusted Term SOFR for a one-month tenor, plus 1.00%, or (d) 0.00%. A commitment fee is payable on the average daily unused amount of the 2023 Revolving Credit Facility, which ranges from 0.125% to 0.25%, depending on the Company’s Leverage Ratio. The fee was 0.125% of the unused amount as of March 31, 2026 and December 31, 2025. Fees for letters of credit issued under the 2023 Revolving Credit Facility range from 0.85% to 1.875% of the respective face amounts of outstanding letters of credit, depending on the nature of the letter of credit, and are computed depending on the Company’s Leverage Ratio. Obligations under the 2023 Credit Agreement are guaranteed by most of our direct and indirect subsidiaries and are secured by substantially all of our assets. The 2023 Credit Agreement contains customary covenants providing for, among other things, the maintenance of certain financial ratios and certain limitations on the payment of dividends, common stock repurchases, investments, acquisitions, indebtedness, and capital expenditures. We were in compliance with all such covenants as of March 31, 2026 and December 31, 2025.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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+ Details

Document And Entity Information - shares	3 Months Ended
Document And Entity Information - shares	Mar. 31, 2026	Apr. 23, 2026
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2026
Document Transition Report	false
Entity File Number	1-8267
Entity Registrant Name	EMCOR Group, Inc.
Entity Central Index Key	0000105634
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2026
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	11-2125338
Entity Address, Address Line One	301 Merritt Seven
Entity Address, City or Town	Norwalk,
Entity Address, State or Province	CT
Entity Address, Postal Zip Code	06851-1092
City Area Code	(203)
Local Phone Number	849-7800
Title of 12(b) Security	Common Stock
Trading Symbol	EME
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		44,440,278

Fair Value Measurements (Schedule Of Assets And Liabilities Carried At Fair Value Measured On A Recurring Basis) (Details) - USD ($)
$ in Thousands

Mar. 31, 2026

Dec. 31, 2025

Mar. 31, 2025

Dec. 31, 2024

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Restricted cash

$ 800

Fair Value, Recurring [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Cash and cash equivalents

^[1]

$ 916,420

$ 1,111,968

Deferred compensation plan assets

^[2]

84,031

75,627

Total

1,000,451

1,187,595

Fair Value, Recurring [Member] | Level 1 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Cash and cash equivalents

^[1]

916,420

1,111,968

Deferred compensation plan assets

^[2]

84,031

75,627

Total

1,000,451

1,187,595

Fair Value, Recurring [Member] | Level 2 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Cash and cash equivalents

^[1]

Deferred compensation plan assets

^[2]

Total

Fair Value, Recurring [Member] | Level 3 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Cash and cash equivalents

^[1]

Deferred compensation plan assets

^[2]

Total

Money Market Funds [Member] | Fair Value, Recurring [Member] | Level 1 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Cash and cash equivalents

$ 653,800

$ 870,500

[1]	Cash and cash equivalents consist of deposit accounts and money market funds with original maturity dates of three months or less, which are Level 1 assets. At March 31, 2026 and December 31, 2025, we had $653.8 million and $870.5 million, respectively, in money market funds. From time to time, we have cash balances in certain of our bank accounts that exceed federally insured limits.
[2]	Deferred compensation plan assets are classified as “Other assets” in the Consolidated Balance Sheets.

Common Stock	3 Months Ended
Common Stock	Mar. 31, 2026
Stockholders' Equity Note [Abstract]
Common Stock	Common Stock As of March 31, 2026 and December 31, 2025, there were 44,439,940 and 44,520,367 shares of our common stock outstanding, respectively. During the three months ended March 31, 2026 and 2025, we issued 41,579 and 52,275 shares of common stock, respectively. These shares were issued upon the satisfaction of required conditions under our share-based compensation plans. We have paid quarterly dividends since October 25, 2011. We currently pay a regular quarterly dividend of $0.40 per share. In September 2011, our Board of Directors (the “Board”) authorized a share repurchase program allowing us to begin repurchasing shares of our outstanding common stock. Subsequently, the Board has from time to time increased the amount authorized for repurchases under such program. Since the inception of the repurchase program, through March 31, 2026, the Board has authorized us to repurchase up to $3.65 billion of our outstanding common stock. During the three months ended March 31, 2026, we repurchased 0.1 million shares of our common stock for $87.7 million, inclusive of the applicable excise tax. Since the inception of the repurchase program through March 31, 2026, we have repurchased 28.6 million shares of our common stock for $3.06 billion. As of March 31, 2026, there remained authorization for us to repurchase $592.9 million of our shares. The repurchase program has no expiration date, does not obligate the Company to acquire any particular amount of common stock, and may be suspended, recommenced, or discontinued at any time or from time to time without prior notice. We may repurchase our shares from time to time to the extent permitted by securities laws and other legal requirements, including provisions in our 2023 Credit Agreement placing limitations on such repurchases.

- Definition

The entire disclosure for equity.

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+ Details

- Schedule of Income Tax Provision (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Operating Loss Carryforwards [Line Items]
Income tax provision	$ 104,588	$ 83,520
Income tax rate	25.50%	25.80%

- Definition

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-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-10

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-22

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(9))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Subparagraph (a)
-SubTopic 20
-Topic 740
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482659/740-20-45-2

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h))
-SubTopic 10
-Topic 235
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

+ Details

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Mar. 31, 2026
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Schedule of Finite-Lived and Indefinite-Lived Intangible Assets Acquired (Details) - MillerElectric $ in Thousands	Feb. 03, 2025 USD ($)
Intangible Asset, Acquired, Finite-Lived [Line Items]
Finite-Lived Intangible Assets Acquired	$ 320,000
Identifiable intangible assets	$ 475,000
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life	14 years 2 months 12 days
Trade Names
Intangible Asset, Acquired, Finite-Lived [Line Items]
Indefinite-Lived Intangible Assets Acquired	$ 155,000
Customer Relationships
Intangible Asset, Acquired, Finite-Lived [Line Items]
Finite-Lived Intangible Assets Acquired	$ 280,000
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life	16 years
Contract Backlog
Intangible Asset, Acquired, Finite-Lived [Line Items]
Finite-Lived Intangible Assets Acquired	$ 40,000
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life	1 year 6 months

Commitments and Contingencies	3 Months Ended
Commitments and Contingencies	Mar. 31, 2026
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Severance Agreements We have agreements with our executive officers and certain other key management personnel providing for severance benefits for such employees upon termination of their employment under certain circumstances. Guarantees In the ordinary course of business, we, at times, guarantee obligations of our subsidiaries under certain contracts. Generally, we are liable under such an arrangement only if our subsidiary fails to perform its obligations under the contract. Historically, we have not incurred any substantial liabilities as a consequence of these guarantees. Surety Bonds The terms of our construction contracts frequently require that we obtain from surety companies, and provide to our customers, surety bonds as a condition to the award of such contracts. These surety bonds are issued in return for premiums, which vary depending on the size and type of the bond, and secure our payment and performance obligations under such contracts. We have agreed to indemnify the surety companies for amounts, if any, paid by them in respect of surety bonds issued on our behalf. As of March 31, 2026, based on the percentage-of-completion of our projects covered by surety bonds, our aggregate estimated exposure, assuming defaults on all our then existing contractual obligations, was $4.19 billion, which represents approximately 27% of our total remaining performance obligations. Surety bonds are sometimes provided to secure obligations for wages and benefits payable to or for certain of our employees, at the request of labor unions representing such employees. In addition, surety bonds may be issued as collateral for certain insurance obligations. As of March 31, 2026, we satisfied $105.5 million of the collateral requirements of our insurance programs by utilizing surety bonds. We are not aware of any losses in connection with surety bonds that have been posted on our behalf, and we do not expect to incur significant losses in the foreseeable future. Hazardous Materials We are subject to regulations with respect to the handling or disposal of certain materials used in the performance of our services, which are classified as hazardous or toxic by federal, state, and local agencies. Our practice is to avoid participation in projects principally involving the remediation or removal of such materials. However, when remediation is required as part of our contract performance, we believe we comply with all applicable regulations governing hazardous materials or otherwise relating to the protection of the environment. NOTE 11 - Commitments and Contingencies (Continued) Government Contracts When we perform work as a federal government contractor/subcontractor or when we perform work on a project that has received federal government funding, we are subject to U.S. government audits and investigations relating to our operations, which such audits may result in fines, penalties and compensatory and treble damages, and possible suspension or debarment from doing business with the government. Based on currently available information, we believe the outcome of ongoing government disputes and investigations will not have a material impact on our financial position, results of operations, or liquidity. Legal Proceedings We face potential exposure in several legal proceedings in which damages or claims (including, without limitation, indemnification claims by named defendants in legal proceedings in which we are not a party) have been asserted against us. We believe that we have valid defenses to such proceedings and claims, but litigation is inherently uncertain. We additionally maintain insurance coverage for certain of these matters, although these policies do not cover all possible claims and certain of the policies are subject to large deductibles and retentions. We do not believe that any such matters will have a material adverse effect on our financial position, results of operations, or liquidity. We record a loss contingency if we consider the potential loss from a proceeding or claim probable, and we are able to reasonably estimate the amount or can reasonably determine a range of loss. We provide disclosure when we believe a loss in excess of any recorded provision is reasonably possible. Significant judgment is required in these determinations. As additional information becomes available, we reassess prior determinations and may change our estimates. Additional claims may be asserted against us in the future. Litigation is subject to many uncertainties, and the outcome of litigation is not predictable with assurance. A litigation matter for which liabilities have not been recorded could be decided unfavorably to us, and any such unfavorable decision could have a material adverse effect on our financial position, results of operations, or liquidity. On October 10, 2024, a chemical release occurred at the PEMEX Deer Park Refinery in Deer Park, Texas. As a result of the release, two people were killed and approximately 200 others claim to have suffered bodily injuries. Several lawsuits were filed in Harris County, Texas on behalf of the various claimants. Those lawsuits were thereafter assigned the status of “multi-district litigation” and consolidated in the 281st District Court, Harris County. Repcon, Inc. (“Repcon”) and EMCOR Industrial Services, Inc. (“EIS”), indirect subsidiaries of the Company, have been named in several of the lawsuits, and Repcon has also been subject to contractual indemnification claims. Repcon expects to participate in mediations related to this matter. Based on currently available information, we believe insurance will cover much or all of any amounts required to be paid by Repcon or EIS in connection with these claims. Insurance Liabilities We have loss payment deductibles for certain workers’ compensation, automobile liability, general liability, and property claims, have self-insured retentions for certain other casualty claims, and are self-insured for employee-related healthcare claims. In addition, we maintain a wholly-owned captive insurance subsidiary to manage certain of our insurance liabilities. Losses are recorded based upon estimates of our liability for claims incurred and for claims incurred but not reported. The liabilities are derived from known facts, historical trends, and industry averages, utilizing the assistance of an independent third-party actuary to determine the best estimate for the majority of these obligations. To the extent that the amount required to settle claims covered by insurance continues to increase, the cost of our insurance coverage, including premiums and deductibles, is likely to increase. As of March 31, 2026 and December 31, 2025, the estimated current portion of such undiscounted insurance liabilities, included in “Other accrued expenses and liabilities” in the accompanying Consolidated Balance Sheets, were $90.2 million and $84.0 million, respectively. The estimated non-current portion of such undiscounted insurance liabilities included in “Other long-term obligations” as of March 31, 2026 and December 31, 2025 were $298.9 million and $274.1 million, respectively. The current portion of anticipated insurance recoveries of $16.7 million and $15.5 million as of March 31, 2026 and December 31, 2025, respectively, were included in “Prepaid expenses and other,” and the non-current portion of anticipated insurance recoveries of $56.6 million and $51.7 million as of March 31, 2026 and December 31, 2025, respectively, were included in “Other assets” in the accompanying Consolidated Balance Sheets.

Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2026

Fair Value Disclosures [Abstract]

Schedule Of Assets And Liabilities Carried At Fair Value Measured On A Recurring Basis

Recurring Fair Value Measurements

The following tables summarize the assets and liabilities carried at fair value measured on a recurring basis as of March 31, 2026 and December 31, 2025 (in thousands):


	Assets at Fair Value as of March 31, 2026
Asset Category	Level 1		Level 2		Level 3		Total
Cash and cash equivalents (1)	$	916,420	$	—	$	—	$	916,420
Deferred compensation plan assets (2)	84,031		—		—		84,031
Total	$	1,000,451	$	—	$	—	$	1,000,451


	Assets at Fair Value as of December 31, 2025
Asset Category	Level 1		Level 2		Level 3		Total
Cash and cash equivalents (1)	$	1,111,968	$	—	$	—	$	1,111,968
Deferred compensation plan assets (2)	75,627		—		—		75,627
Total	$	1,187,595	$	—	$	—	$	1,187,595

_________________________

(2)Deferred compensation plan assets are classified as “Other assets” in the Consolidated Balance Sheets.

Revenue from Contracts with Customers

3 Months Ended

Mar. 31, 2026

Revenue from Contract with Customer [Abstract]

Revenue from Contracts with Customers

The Company recognizes revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which we expect to be entitled in exchange for those goods or services by applying the following five step model:

(1) Identify the contract with a customer

A contract with a customer exists when: (a) the parties have approved the contract and are committed to perform their respective obligations, (b) the rights of the parties can be identified, (c) payment terms can be identified, (d) the arrangement has commercial substance, and (e) collectability of consideration is probable. Judgment is required when determining if the contractual criteria are met, specifically in the earlier stages of a project when a formally executed contract may not yet exist. In these situations, the Company evaluates all relevant facts and circumstances, including the existence of other forms of documentation or historical experience with our customers that may indicate a contractual agreement is in place and revenue should be recognized. In determining if the collectability of consideration is probable, the Company considers the customer’s ability and intention to pay such consideration through an evaluation of several factors, including an assessment of the creditworthiness of the customer and our prior collection history with such customer.

NOTE 3 - Revenue from Contracts with Customers (Continued)

(2) Identify the performance obligations in the contract

At contract inception, the Company assesses the goods or services promised in a contract and identifies, as a separate performance obligation, each distinct promise to transfer goods or services to the customer. The identified performance obligations represent the “unit of account” for purposes of determining revenue recognition. In order to properly identify separate performance obligations, the Company applies judgment in determining whether each good or service provided is: (a) capable of being distinct, whereby the customer can benefit from the good or service either on its own or together with other resources that are readily available to the customer, and (b) distinct within the context of the contract, whereby the transfer of the good or service to the customer is separately identifiable from other promises in the contract.

In addition, when assessing performance obligations within a contract, the Company considers the warranty provisions included within such contract. To the extent the warranty terms provide the customer with an additional service, other than assurance that the promised good or service complies with agreed upon specifications, such warranty is accounted for as a separate performance obligation. In determining whether a warranty provides an additional service, the Company considers each warranty provision in comparison to warranty terms which are standard in the industry.

Our contracts are often modified through change orders to account for changes in the scope and price of the goods or services we are providing. Although the Company evaluates each change order to determine whether such modification creates a separate performance obligation, the majority of our change orders are for goods or services that are not distinct within the context of our original contract and, therefore, are not treated as separate performance obligations.

(3) Determine the transaction price

The transaction price represents the amount of consideration to which the Company expects to be entitled in exchange for transferring promised goods or services to our customers. The consideration promised within a contract may include fixed amounts, variable amounts, or both. To the extent the performance obligation includes variable consideration, including contract bonuses and penalties that can either increase or decrease the transaction price, the Company estimates the amount of variable consideration to be included in the transaction price utilizing one of two prescribed methods, depending on which method better predicts the amount of consideration to which the entity will be entitled. Such methods include: (a) the expected value method, whereby the amount of variable consideration to be recognized represents the sum of probability-weighted amounts in a range of possible consideration amounts, and (b) the most likely amount method, whereby the amount of variable consideration to be recognized represents the single most likely amount in a range of possible consideration amounts. When applying these methods, the Company considers all information that is reasonably available, including historical, current, and estimates of future performance. The expected value method is typically utilized in situations where a contract contains a large number of possible outcomes while the most likely amount method is typically utilized in situations where a contract has only two possible outcomes.

Variable consideration is included in the transaction price only to the extent it is probable, in the Company’s judgment, that a significant future reversal in the amount of cumulative revenue recognized under the contract will not occur when the uncertainty associated with the variable consideration is subsequently resolved. This threshold is referred to as the variable consideration constraint. In assessing whether to apply the variable consideration constraint, the Company considers if factors exist that could increase the likelihood or the magnitude of a potential reversal of revenue, including, but not limited to, whether: (a) the amount of consideration is highly susceptible to factors outside of the Company’s influence, such as the actions of third parties, (b) the uncertainty surrounding the amount of consideration is not expected to be resolved for a long period of time, (c) the Company’s experience with similar types of contracts is limited or that experience has limited predictive value, (d) the Company has a practice of either offering a broad range of price concessions or changing the payment terms and conditions of similar contracts in similar circumstances, and (e) the contract has a large number and broad range of possible consideration amounts.

Pending change orders represent one of the most common forms of variable consideration included within contract value and typically represent contract modifications for which a change in scope has been authorized or acknowledged by our customer but the final adjustment to contract price is yet to be negotiated. In estimating the transaction price for pending change orders, the Company considers all relevant facts, including documented correspondence with the customer regarding acknowledgment of and/or agreement with the modification, as well as historical experience with the customer or similar contractual circumstances. Based upon this assessment, the Company estimates the transaction price, including whether the variable consideration constraint should be applied.

NOTE 3 - Revenue from Contracts with Customers (Continued)

Contract claims are another form of variable consideration which is common within our industry. Claim amounts represent revenue that has been recognized for contract modifications that are not submitted or are in dispute as to both scope and price. In estimating the transaction price for claims, the Company considers all relevant facts available. However, given the uncertainty surrounding claims, including the potential long-term nature of dispute resolution and the broad range of possible consideration amounts, there is an increased likelihood that any additional contract revenue associated with contract claims is constrained. The resolution of claims involves negotiations and, in certain cases, litigation. In the event litigation costs are incurred by us in connection with claims, such litigation costs are expensed as incurred, although we may seek to recover these costs.

For some transactions, the receipt of consideration does not match the timing of the transfer of goods or services to the customer. For such contracts, the Company evaluates whether this timing difference represents a financing arrangement within the contract. Although rare, if a contract is determined to contain a significant financing component, the Company adjusts the promised amount of consideration for the effects of the time value of money when determining the transaction price of such contract. Although our customers may retain a portion of the contract price until completion of the project and final contract settlement, these retainage amounts are not considered a significant financing component as the intent of the withheld amounts is to provide the customer with assurance that we will complete our obligations under the contract rather than to provide financing to the customer. In addition, although we may be entitled to advanced payments from our customers on certain contracts, these advanced payments generally do not represent a significant financing component as the payments are used to meet working capital demands that can be higher in the early stages of a contract, as well as to protect us from our customer failing to meet its obligations under the contract.

Changes in the estimates of transaction prices are recognized on a cumulative catch-up basis in the period in which the revisions to the estimates are made. Such changes in estimates can result in the recognition of revenue in a current period for performance obligations which were satisfied or partially satisfied in prior periods. Such changes in estimates may also result in the reversal of previously recognized revenue if the ultimate outcome differs from the Company’s previous estimate.

(4) Allocate the transaction price to the performance obligations in the contract

For contracts that contain multiple performance obligations, the Company allocates the transaction price to each performance obligation based on a relative standalone selling price. The Company determines the standalone selling price based on the price at which the performance obligation would have been sold separately in similar circumstances to similar customers. If the standalone selling price is not observable, the Company estimates the standalone selling price taking into account all available information such as market conditions and internal pricing guidelines. In certain circumstances, the standalone selling price is determined using an expected profit margin on anticipated costs related to the performance obligation.

(5) Recognize revenue as performance obligations are satisfied

The Company recognizes revenue at the time the related performance obligation is satisfied by transferring a promised good or service to its customers. A good or service is considered to be transferred when the customer obtains control. The Company can transfer control of a good or service and satisfy its performance obligations either over time or at a point in time. The Company transfers control of a good or service over time and, therefore, satisfies a performance obligation and recognizes revenue over time if one of the following three criteria are met: (a) the customer simultaneously receives and consumes the benefits provided by the Company’s performance as we perform, (b) the Company’s performance creates or enhances an asset that the customer controls as the asset is created or enhanced, or (c) the Company’s performance does not create an asset with an alternative use to us, and we have an enforceable right to payment for performance completed to date.

For our performance obligations satisfied over time, we recognize revenue by measuring the progress toward complete satisfaction of that performance obligation. The selection of the method to measure progress towards completion can be either an input method or an output method and requires judgment based on the nature of the goods or services to be provided.

NOTE 3 - Revenue from Contracts with Customers (Continued)

For our construction contracts, revenue is generally recognized over time as our performance creates or enhances an asset that the customer controls as it is created or enhanced. Our fixed price construction projects generally use a cost-to-cost input method to measure our progress towards complete satisfaction of the performance obligation as we believe it best depicts the transfer of control to the customer which occurs as we incur costs on our contracts. Under the cost-to-cost measure of progress, the extent of progress towards completion is measured based on the ratio of costs incurred to date to the total estimated costs at completion of the performance obligation. For our unit price construction contracts, progress towards complete satisfaction is measured through an output method, such as the number of units produced or delivered, when our performance does not produce significant amounts of work in process or finished goods prior to complete satisfaction of such performance obligations.

For our services contracts, revenue is also generally recognized over time as the customer simultaneously receives and consumes the benefits of our performance as we perform the service. For our fixed price service contracts with specified service periods, revenue is generally recognized on a straight-line basis over such service period when our inputs are expended evenly and the customer receives and consumes the benefits of our performance throughout the contract term.

The timing of revenue recognition for the manufacturing of new build heat exchangers within our United States industrial services segment depends on the payment terms of the contract, as our performance does not create an asset with an alternative use to us. For those contracts for which we have a right to payment for performance completed to date at all times throughout our performance, inclusive of a cancellation, we recognize revenue over time. For these performance obligations, we use a cost-to-cost input method to measure our progress towards complete satisfaction of the performance obligation as we believe it best depicts the transfer of control to the customer which occurs as we incur costs on our contracts. However, for those contracts for which we do not have a right, at all times, to payment for performance completed to date, we recognize revenue at the point in time when control is transferred to the customer. For bill-and-hold arrangements, revenue is recognized when the customer obtains control of the heat exchanger, which may be prior to shipping if certain recognition criteria are met.

For certain of our revenue streams, such as call-out repair and service work, outage services, refinery turnarounds, and specialty welding services that are performed under time and materials contracts, our progress towards complete satisfaction of such performance obligations is measured using an output method as the customer receives and consumes the benefits of our performance completed to date.

Changes in Estimates

Due to uncertainties inherent in the estimation process, as well as the significant judgment involved in determining variable consideration, it is possible that estimates of costs to complete a performance obligation, and/or our estimates of transaction prices, will be revised in the near term. For those performance obligations for which revenue is recognized using a cost-to-cost input method, changes in total estimated costs, and related progress towards complete satisfaction of the performance obligation, or changes in the estimate of transaction prices, are recognized on a cumulative catch-up basis in the period in which the revisions to the estimates are made. When the current estimate of total costs for a performance obligation indicates a loss, a provision for the entire estimated loss on the unsatisfied performance obligation is made in the period in which the loss becomes evident.

Based on an evaluation of individual projects that were substantially complete in prior periods but had revisions to total estimated costs or anticipated contract value (inclusive of the settlement of previously outstanding change orders and claims) that resulted in an increase to profitability in excess of $1.0 million, we recognized revenue during the three months ended March 31, 2026 and 2025, as summarized in the following table (in thousands):


	For the three months ended March 31,
	2026		2025
United States electrical construction and facilities services	$	7,394	$	—
United States mechanical construction and facilities services	9,333		3,118
Total impact	$	16,727	$	3,118

NOTE 3 - Revenue from Contracts with Customers (Continued)

Based on an evaluation of individual projects that had revisions to total estimated costs or anticipated contract value that resulted in a reduction of profitability in excess of $1.0 million, our operating results were negatively impacted during the three months ended March 31, 2026 and 2025, as summarized in the following table (in thousands):


	For the three months ended March 31,
	2026		2025
United States electrical construction and facilities services	$	3,440	$	7,783
United States mechanical construction and facilities services	5,538		7,307
Total impact	$	8,978	$	15,090

Disaggregation of Revenues

Our revenues are principally derived from contracts to provide construction services relating to electrical and mechanical systems, as well as to provide a number of building services and industrial services to our customers. Our contracts are with many different customers in numerous industries.

The following tables provide further disaggregation of our revenues, by categories we use to evaluate our financial performance within each of our reportable segments, for the three months ended March 31, 2026 and 2025 (in thousands, except for percentages). Refer to Note 13 - Segment Information of the notes to consolidated financial statements for additional information on how we disaggregate our revenues by reportable segment.


	For the three months ended March 31,
	2026		% of Total		2025		% of Total
United States electrical construction and facilities services:
Network and communications market sector	$	757,371	52	%	$	516,337	47	%
Commercial market sector	106,951		7	%	98,558		9	%
Manufacturing and industrial market sector	112,845		8	%	98,475		9	%
Healthcare market sector	113,645		8	%	107,736		10	%
High-tech manufacturing market sector	25,095		2	%	45,010		4	%
Institutional market sector	82,576		5	%	51,709		5	%
Transportation market sector	56,803		4	%	62,028		6	%
Water and wastewater market sector	7,641		1	%	12,759		1	%
Hospitality and entertainment market sector	58,721		4	%	23,224		2	%
Short-duration projects (1)	99,203		7	%	54,977		5	%
Service work	26,999		2	%	19,137		2	%
	1,447,850				1,089,950
Less intersegment revenues	(436)				(2,106)
Total segment revenues	$	1,447,414			$	1,087,844

________

(1)Represents those projects which generally are completed within three months or less.

NOTE 3 - Revenue from Contracts with Customers (Continued)


	For the three months ended March 31,
	2026		% of Total		2025		% of Total
United States mechanical construction and facilities services:
Network and communications market sector	$	613,824	30	%	$	330,361	21	%
Commercial market sector	238,408		12	%	179,903		12	%
Manufacturing and industrial market sector	238,865		12	%	177,901		11	%
Healthcare market sector	151,615		8	%	143,563		9	%
High-tech manufacturing market sector	205,480		10	%	282,371		18	%
Institutional market sector	170,334		8	%	84,856		5	%
Transportation market sector	8,595		1	%	14,116		1	%
Water and wastewater market sector	87,550		4	%	76,448		5	%
Hospitality and entertainment market sector	27,688		1	%	29,205		2	%
Short-duration projects (1)	108,218		5	%	108,526		7	%
Service work	180,940		9	%	146,371		9	%
	2,031,517				1,573,621
Less intersegment revenues	(5,176)				(1,019)
Total segment revenues	$	2,026,341			$	1,572,602

________

(1)Represents those projects which generally are completed within three months or less.


	For the three months ended March 31,
	2026		% of Total		2025		% of Total
United States building services:
Mechanical services	$	592,768	77	%	$	558,486	75	%
Commercial site-based services	141,598		18	%	143,309		19	%
Government site-based services	38,283		5	%	40,828		6	%
Total segment revenues	$	772,649			$	742,623


	For the three months ended March 31,
	2026		% of Total		2025		% of Total
United States industrial services:
Field services	$	349,050	91	%	$	317,667	88	%
Shop services	32,779		9	%	41,335		12	%
Total segment revenues	$	381,829			$	359,002

Total United States operations	$	4,628,233			$	3,762,071


	For the three months ended March 31,
	2026		% of Total	2025		% of Total
United Kingdom building services:
Service work	$	—	—	$	48,031	46	%
Project work	—		—	57,270		54	%
Total segment revenues	$	—		$	105,301

Consolidated revenues	$	4,628,233		$	3,867,372

NOTE 3 - Revenue from Contracts with Customers (Continued)

Accounts Receivable and Allowance for Credit Losses

Accounts receivable are recognized in the period we deliver goods and services to our customers or when our right to consideration is unconditional. The Company maintains an allowance for credit losses to reduce outstanding receivables to their net realizable value. Judgment is required when determining expected credit losses. Estimates of such losses are recorded when we believe a customer, or group of customers, may not be able to meet their financial obligations due to deterioration in financial condition or credit rating. Factors relevant to our assessment include our prior collection history with our customers, the related aging of past due balances, projections of credit losses based on historical trends in credit quality indicators or past events, and forecasts of future economic conditions. In addition to monitoring delinquent accounts, management reviews the credit quality of its receivables by, among other things, obtaining credit ratings of significant customers, assessing economic and market conditions, and evaluating material changes to a customer’s business, cash flows, and financial condition.

At March 31, 2026 and December 31, 2025, our allowance for credit losses was $22.1 million and $22.8 million, respectively. Allowances for credit losses are based on the best facts available and are reassessed and adjusted on a regular basis as additional information is received. Should anticipated collections fail to materialize, or if future economic conditions compare unfavorably to our forecasts, we could experience an increase in our credit losses.

The change in the allowance for credit losses for the three months ended March 31, 2026 was as follows (in thousands):


Balance at December 31, 2025	$	22,757
Provision for credit losses	395
Amounts written off against the allowance, net of recoveries	(1,096)
Balance at March 31, 2026	$	22,056

Contract Assets and Contract Liabilities

The timing of revenue recognition may differ from the timing of invoicing to customers. Contract assets include unbilled amounts from our construction projects when revenues recognized under the cost-to-cost measure of progress exceed the amounts invoiced to our customers, as the amounts are not yet billable under the terms of our contracts. Such amounts are recoverable from our customers based upon various measures of performance, including achievement of certain milestones, completion of specified units, or completion of a contract. In addition, many of our time and materials arrangements, as well as our contracts to perform turnaround services within the United States industrial services segment, are billed in arrears pursuant to contract terms that are standard within the industry, resulting in contract assets and/or unbilled receivables being recorded as revenue is recognized in advance of billings.

Also included in contract assets are amounts we seek or will seek to collect from customers or others for errors or changes in contract specifications or design, contract change orders or modifications in dispute or unapproved as to scope and/or price, or other customer-related causes of unanticipated additional contract costs (claims and unapproved change orders). Our contract assets do not include capitalized costs to obtain and fulfill a contract. Contract assets are generally classified as current within the Consolidated Balance Sheets.

Contract liabilities from our construction contracts arise when amounts invoiced to our customers exceed revenues recognized under the cost-to-cost measure of progress. Contract liabilities additionally include advanced payments from our customers on certain contracts. Contract liabilities decrease as we recognize revenue from the satisfaction of the related performance obligation and are recorded as either current or long-term, depending upon when we expect to recognize such revenue. The long-term portion of contract liabilities is included in “Other long-term obligations” in the Consolidated Balance Sheets.

NOTE 3 - Revenue from Contracts with Customers (Continued)

Net contract liabilities in the accompanying Consolidated Balance Sheets consisted of the following amounts as of March 31, 2026 and December 31, 2025 (in thousands):


	March 31, 2026		December 31, 2025
Contract assets, current	$	377,332	$	337,717
Contract assets, non-current	—		—
Contract liabilities, current	(2,417,021)		(2,327,360)
Contract liabilities, non-current	(793)		(837)
Net contract liabilities	$	(2,040,482)	$	(1,990,480)

Net contract liabilities increased by $50.0 million during the three months ended March 31, 2026, primarily due to an increase in net contract liabilities on our uncompleted construction projects, partially as a result of the timing of invoicing to our customers, including advanced billings on several projects in the earlier stages of completion, as we continue to effectively manage our working capital. There was no significant impairment of contract assets recognized during the periods presented.

Transaction Price Allocated to Remaining Unsatisfied Performance Obligations

The following table presents the transaction price allocated to remaining unsatisfied performance obligations (“remaining performance obligations”) for each of our reportable segments and their respective percentages of total remaining performance obligations as of March 31, 2026 (in thousands, except for percentages):


	March 31, 2026		% of Total
Remaining performance obligations:
United States electrical construction and facilities services	$	5,613,652	36	%
United States mechanical construction and facilities services	8,563,253		55	%
United States building services	1,307,689		8	%
United States industrial services	136,076		1	%
Total operations	$	15,620,670	100	%

Our remaining performance obligations at March 31, 2026 were $15.62 billion. Remaining performance obligations increase with awards of new contracts and decrease as we perform work and recognize revenue on existing contracts. We include a project within our remaining performance obligations at such time the project is awarded and agreement on contract terms has been reached. Our remaining performance obligations include amounts related to contracts for which a fixed price contract value is not assigned when a reasonable estimate of the total transaction price can be made.

Remaining performance obligations include unrecognized revenues to be realized from uncompleted construction contracts. Although many of our construction contracts are subject to cancellation at the election of our customers, in accordance with industry practice, we do not limit the amount of unrecognized revenue included within remaining performance obligations for these contracts as the risk of cancellation is very low due to the inherent substantial economic penalty that our customers would incur upon cancellation or termination. We believe our reported remaining performance obligations for our construction contracts are firm and contract cancellations have not had a material adverse effect on us.

Remaining performance obligations also include unrecognized revenues expected to be realized over the remaining term of service contracts. However, to the extent a service contract includes a cancellation clause which allows for the termination of such contract by either party without a substantive penalty, the remaining contract term, and therefore, the amount of unrecognized revenues included within remaining performance obligations, is limited to the notice period required for the termination.

Our remaining performance obligations are comprised of: (a) original contract amounts, (b) change orders for which we have received written confirmations from our customers, (c) pending change orders for which we expect to receive confirmations in the ordinary course of business, (d) claim amounts that we have made against customers for which we have determined we have a legal basis under existing contractual arrangements and as to which the variable consideration constraint does not apply, and (e) other forms of variable consideration to the extent that such variable consideration has been included within the transaction price of our contracts. Such claim and other variable consideration amounts were immaterial for all periods presented.

NOTE 3 - Revenue from Contracts with Customers (Continued)

Refer to the table below for additional information regarding our remaining performance obligations, including an estimate of when we expect to recognize such remaining performance obligations as revenue (in thousands):


	Within one year		Greater than one year
Remaining performance obligations:
United States electrical construction and facilities services	$	4,256,824	$	1,356,828
United States mechanical construction and facilities services	6,602,952		1,960,301
United States building services	1,170,318		137,371
United States industrial services	136,076		—
Total operations	$	12,166,170	$	3,454,500

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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-URI https://asc.fasb.org/1943274/2147479806/606-10-50-9

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 12
-Subparagraph (a)
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-13

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Topic 606
-Publisher FASB
-URI https://asc.fasb.org/606/tableOfContent

+ Details

Commitments and Contingencies Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Dec. 31, 2025
Surety Bond
Other Commitments [Line Items]
Aggregate estimated exposure, contracts with surety bonds	$ 4,190.0
Estimated exposure, contracts with surety bonds, RPO percentage	27.00%
Surety bonds for insurance	$ 105.5
Other accrued expenses and liabilities
Other Commitments [Line Items]
Insurance liabilities, current	90.2	$ 84.0
Other long-term obligations
Other Commitments [Line Items]
Insurance liabilities, noncurrent	298.9	274.1
Prepaid expenses and other
Other Commitments [Line Items]
Anticipated insurance recoveries, current	16.7	15.5
Other assets
Other Commitments [Line Items]
Anticipated insurance recoveries, noncurrent	$ 56.6	$ 51.7

Segment Information (Details) $ in Thousands	3 Months Ended
Segment Information (Details) $ in Thousands	Mar. 31, 2026 USD ($) Company	Mar. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)
Segment Reporting Information [Line Items]
Number of operating subsidiaries \| Company	100
Revenues from unrelated entities	$ 4,628,233	$ 3,867,372
Total revenues	4,628,233	3,867,372
Operating income (loss)	403,845	318,756
Net periodic pension income	0	54
Interest income, net	6,227	5,387
Income before income taxes	410,072	324,197
Cost of sales	3,764,283	3,144,654
Selling, general and administrative expenses	460,105	403,962
Depreciation and amortization of property, plant, and equipment	18,362	15,582
Amortization of identifiable intangible assets	34,212	26,363
Capital expenditures	28,712	26,131
Total assets	$ 9,508,107		$ 9,291,399
Number of reportable segments not disclosed flag	true
UNITED STATES
Segment Reporting Information [Line Items]
Revenues from unrelated entities	$ 4,628,233	3,762,071
Total revenues	4,628,233	3,762,071
Operating income (loss)	449,353	365,987
Cost of sales	3,764,283	3,051,557
Selling, general and administrative expenses	414,597	344,527
Depreciation and amortization of property, plant, and equipment	17,962	14,401
Capital expenditures	27,242	22,249
Total assets	8,295,203		7,855,266
United States Electrical Construction And Facilities Services [Member] \| UNITED STATES
Segment Reporting Information [Line Items]
Revenues from unrelated entities	1,447,414	1,087,844
United States Mechanical Construction And Facilities Services [Member] \| UNITED STATES
Segment Reporting Information [Line Items]
Revenues from unrelated entities	2,026,341	1,572,602
United States Building Services [Member] \| UNITED STATES
Segment Reporting Information [Line Items]
Revenues from unrelated entities	772,649	742,623
United States Industrial Services [Member] \| UNITED STATES
Segment Reporting Information [Line Items]
Revenues from unrelated entities	381,829	359,002
United Kingdom Building Services [Member] \| UNITED KINGDOM
Segment Reporting Information [Line Items]
Revenues from unrelated entities	0	105,301
Operating Segments [Member] \| United States Electrical Construction And Facilities Services [Member] \| UNITED STATES
Segment Reporting Information [Line Items]
Revenues from unrelated entities	1,447,850	1,089,950
Total revenues	1,449,422	1,114,195
Operating income (loss)	174,481	136,057
Cost of sales	1,165,763	876,243
Selling, general and administrative expenses	107,170	75,544
Depreciation and amortization of property, plant, and equipment	3,104	2,305
Amortization of identifiable intangible assets	13,590	9,480
Capital expenditures	7,160	4,622
Total assets	2,790,957		2,686,933
Operating Segments [Member] \| United States Mechanical Construction And Facilities Services [Member] \| UNITED STATES
Segment Reporting Information [Line Items]
Revenues from unrelated entities	2,031,517	1,573,621
Total revenues	2,050,757	1,585,114
Operating income (loss)	221,643	186,747
Cost of sales	1,648,918	1,265,710
Selling, general and administrative expenses	155,780	120,145
Depreciation and amortization of property, plant, and equipment	7,489	4,876
Amortization of identifiable intangible assets	9,459	5,397
Capital expenditures	14,231	10,979
Total assets	3,450,620		3,206,671
Operating Segments [Member] \| United States Building Services [Member] \| UNITED STATES
Segment Reporting Information [Line Items]
Total revenues	783,554	751,884
Operating income (loss)	40,449	36,423
Cost of sales	619,060	601,509
Selling, general and administrative expenses	113,140	104,691
Depreciation and amortization of property, plant, and equipment	3,891	4,041
Amortization of identifiable intangible assets	5,242	5,565
Capital expenditures	2,389	3,343
Total assets	1,423,810		1,436,779
Operating Segments [Member] \| United States Industrial Services [Member] \| UNITED STATES
Segment Reporting Information [Line Items]
Total revenues	382,083	364,332
Operating income (loss)	12,780	6,760
Cost of sales	330,542	308,095
Selling, general and administrative expenses	38,507	44,147
Depreciation and amortization of property, plant, and equipment	3,478	3,179
Amortization of identifiable intangible assets	5,921	5,921
Capital expenditures	3,462	3,305
Total assets	629,816		524,883
Operating Segments [Member] \| United Kingdom Building Services [Member] \| UNITED KINGDOM
Segment Reporting Information [Line Items]
Total revenues	0	105,301
Operating income (loss)	0	4,987
Cost of sales	0	93,097
Selling, general and administrative expenses	0	7,217
Depreciation and amortization of property, plant, and equipment	0	932
Capital expenditures	0	2,456
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Operating income (loss)	(45,508)	(52,218)
Selling, general and administrative expenses	45,508	52,218
Depreciation and amortization of property, plant, and equipment	400	249
Capital expenditures	1,470	1,426
Total assets	1,212,904		$ 1,436,133
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total revenues	(37,583)	(53,454)
Intersegment Eliminations [Member] \| United States Electrical Construction And Facilities Services [Member] \| UNITED STATES
Segment Reporting Information [Line Items]
Revenues from unrelated entities	(436)	(2,106)
Intersegment Eliminations [Member] \| United States Mechanical Construction And Facilities Services [Member] \| UNITED STATES
Segment Reporting Information [Line Items]
Revenues from unrelated entities	$ (5,176)	$ (1,019)

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents	$ 916,420	$ 1,111,968
Accounts receivable, less allowance for credit losses of $22,056 and $22,757, respectively	4,549,956	4,241,177
Contract assets	377,332	337,717
Inventories	130,208	126,252
Prepaid expenses and other	100,577	120,231
Total current assets	6,074,493	5,937,345
Property, plant, and equipment, net	264,696	253,277
Operating lease right-of-use assets	478,646	439,029
Goodwill	1,433,937	1,412,414
Identifiable intangible assets, net	1,089,866	1,108,828
Other assets	166,469	140,506
Total assets	9,508,107	9,291,399
Current liabilities:
Accounts payable	1,149,028	1,227,428
Contract liabilities	2,417,021	2,327,360
Accrued payroll and benefits	710,038	870,154
Other accrued expenses and liabilities	443,116	340,785
Operating lease liabilities, current	102,296	99,213
Total current liabilities	4,821,499	4,864,940
Operating lease liabilities, long-term	408,122	368,996
Other long-term obligations	410,910	382,482
Total liabilities	5,640,531	5,616,418
EMCOR Group, Inc. stockholders' equity:
Preferred stock, $0.10 par value, 1,000,000 shares authorized, zero issued and outstanding	0	0
Common stock, $0.01 par value, 200,000,000 shares authorized, 61,294,178 and 61,252,599 shares issued, respectively	613	613
Capital surplus	93,977	101,336
Accumulated other comprehensive loss	(1,920)	(1,916)
Retained earnings	6,293,411	6,005,772
Treasury stock, at cost 16,854,238 and 16,732,232 shares, respectively	(2,519,542)	(2,431,861)
Total EMCOR Group, Inc. stockholders' equity	3,866,539	3,673,944
Noncontrolling interests	1,037	1,037
Total equity	3,867,576	3,674,981
Total liabilities and equity	$ 9,508,107	$ 9,291,399

Condensed Consolidated Statements Of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Income Statement [Abstract]
Revenues	$ 4,628,233	$ 3,867,372
Cost of sales	3,764,283	3,144,654
Gross profit	863,950	722,718
Selling, general and administrative expenses	460,105	403,962
Operating income	403,845	318,756
Net periodic pension income	0	54
Interest income, net	6,227	5,387
Income before income taxes	410,072	324,197
Income tax provision	104,588	83,520
Net income (in US dollars)	$ 305,484	$ 240,677
Basic earnings per common share (in US dollars per share)	$ 6.85	$ 5.27
Diluted earnings per common share (in US dollars per share)	6.84	5.26
Dividends declared per common share (in US dollars per share)	$ 0.40	$ 0.25

Inventories

3 Months Ended

Mar. 31, 2026

Inventory Disclosure [Abstract]

Inventories

Inventories in the accompanying Consolidated Balance Sheets consisted of the following amounts as of March 31, 2026 and December 31, 2025 (in thousands):


	March 31, 2026		December 31, 2025
Raw materials and construction materials	$	119,897	$	119,789
Work in process	10,311		6,463
Inventories	$	130,208	$	126,252

Acquisitions and Dispositions Of Businesses

3 Months Ended

Mar. 31, 2026

Business Combination [Abstract]

Acquisitions Of Businesses

Acquisitions and Dispositions of Businesses

Acquisitions are accounted for utilizing the acquisition method of accounting and the prices paid for them are allocated to their respective assets and liabilities based upon the estimated fair value of such assets and liabilities at the dates of their respective acquisition by us.

During the first quarter of 2026, we acquired a company for an immaterial amount. This company provides mechanical and sheet metal fabrication services in the Western region of the United States, and its results have been included in our United States mechanical construction and facilities services segment.

On February 3, 2025, we completed the acquisition of Miller Electric Company (“Miller Electric”), a leading electrical contractor that operates predominantly across the Southeastern United States. Under the terms of the transaction, we acquired 100% of Miller Electric's capital stock for total cash consideration of $876.8 million, inclusive of working capital and other customary adjustments. This acquisition complements our existing electrical construction capabilities in high-growth end markets and expands our geographic presence. The results of operations of Miller Electric have been included within our United States electrical construction and facilities services segment. In connection with this acquisition, we incurred $9.4 million of transaction related costs during the first quarter of 2025. These expenses were included in "Selling, general and administrative expenses" in the accompanying Consolidated Statement of Operations.

The following table summarizes the estimated fair values of the assets acquired and liabilities assumed as of the acquisition date (in thousands):


Assets:
Cash and cash equivalents	$	18,394
Accounts receivable	222,355
Contract assets	23,120
Inventories	329
Prepaid expenses and other	7,284
Property, plant, and equipment	10,462
Operating lease right-of-use assets	30,345
Goodwill (1)	326,776
Identifiable intangible assets	475,000
Other assets	302
Total assets acquired	$	1,114,367

_________________________

(1)Goodwill is calculated as the excess of the consideration transferred over the fair value of the net assets acquired and represents the projected future economic benefits from this strategic acquisition.

NOTE 4 - Acquisitions and Dispositions of Businesses (Continued)


Liabilities:
Accounts payable	$	68,147
Contract liabilities	104,595
Accrued payroll and benefits	9,838
Other accrued expenses and liabilities	22,746
Operating lease liabilities, current	2,573
Operating lease liabilities, long-term	27,771
Other long-term obligations	991
Total liabilities assumed	236,661
Noncontrolling interests	934
Net assets acquired	$	876,772

The following table summarizes the estimated fair values of identifiable intangible assets (in thousands) and their estimated useful lives (in years). Refer to Note 8 - Fair Value Measurements of the notes to consolidated financial statements for additional information on the valuation methodologies utilized to determine fair value.


Miller Electric	Estimated Fair Value		Estimated Useful Life
Customer relationships	$	280,000	16.0
Contract backlog	40,000		1.5
Total intangible assets subject to amortization	320,000		14.2
Trade name	155,000		Indefinite
Total identifiable intangible assets	$	475,000

In addition to Miller Electric, during calendar year 2025, we acquired nine companies, for upfront consideration of $182.1 million, inclusive of customary working capital adjustments. These acquisitions are comprised of: (a) five companies that have been included in our United States mechanical construction and facilities services segment, including: (i) two companies in the Midwestern region of the United States that provide building automation controls and solutions to commercial, institutional, and industrial customers, (ii) a company that adds capabilities to our national fire protection offerings, (iii) a provider of mechanical construction and maintenance services in the Western region of the United States, and (iv) a full service mechanical contractor in the Northeast region of the United States, and (b) four companies that have been included in our United States building services segment, which enhance our building automation and controls or energy efficiency offerings. In connection with these acquisitions, we acquired working capital of $2.0 million and other net assets of $8.2 million and have preliminarily ascribed $67.2 million to goodwill and $104.7 million to identifiable intangible assets.

We expect that all of the goodwill and identifiable intangible assets acquired in connection with these acquisitions will be deductible for tax purposes. The purchase price allocations for the business acquired in 2026 and two of the businesses acquired in 2025 are preliminary and subject to change during their respective measurement periods as we finalize asset valuations and certain tax matters, among other items. The finalization of these items may result in changes in the valuation of assets acquired or liabilities assumed. The purchase price allocations for the other businesses acquired in 2025 have been finalized during their respective measurement periods with an insignificant impact.

Dispositions of Businesses

On December 1, 2025, we completed the sale of EMCOR UK. Given the size of EMCOR UK, this transaction did not represent a strategic shift that had a major effect on the Company’s operations and financial results and, therefore, is not presented as discontinued operations.

- Definition

The entire disclosure for business combination.

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+ Details

Segment Information

3 Months Ended

Mar. 31, 2026

Segment Reporting [Abstract]

Segment Information

We are one of the largest specialty contractors in the United States and a leading provider of electrical and mechanical construction and facilities services, building services, and industrial services. Our services are provided to a broad range of commercial, technology, manufacturing, industrial, healthcare, utility, and institutional customers through approximately 100 operating subsidiaries. Such operating subsidiaries are organized into the following reportable segments, which additionally reflect the nature of the services offered:

•United States electrical construction and facilities services;

•United States mechanical construction and facilities services;

•United States building services; and

•United States industrial services.

On December 1, 2025, we sold EMCOR UK, the results of which were previously reported within our United Kingdom building services segment.

Our chief operating decision maker (“CODM”) is our Chairman, President, and Chief Executive Officer. Our CODM is responsible for assessing the performance of the Company and each of our reportable segments as well as allocating resources, including personnel and capital resources. The measure of segment profit or loss utilized by our CODM is operating income. Our CODM evaluates segment performance by comparing historical, actual, and forecasted operating income on a regular basis. The accounting policies of our reportable segments are the same as those applied at the consolidated financial statement level.

The following tables present the revenues and operating income for each of our reportable segments for the three months ended March 31, 2026 and 2025 (in thousands):


	For the three months ended March 31,
	2026		2025
Revenues from unrelated entities:
United States electrical construction and facilities services	$	1,447,414	$	1,087,844
United States mechanical construction and facilities services	2,026,341		1,572,602
United States building services	772,649		742,623
United States industrial services	381,829		359,002
Total United States operations	4,628,233		3,762,071
United Kingdom building services	—		105,301
Consolidated revenues	$	4,628,233	$	3,867,372

NOTE 13 - Segment Information (Continued)


	For the three months ended March 31,
	2026		2025
Total revenues:
United States electrical construction and facilities services	$	1,449,422	$	1,114,195
United States mechanical construction and facilities services	2,050,757		1,585,114
United States building services	783,554		751,884
United States industrial services	382,083		364,332
Less intersegment revenues	(37,583)		(53,454)
Total United States operations	4,628,233		3,762,071
United Kingdom building services	—		105,301
Consolidated revenues	$	4,628,233	$	3,867,372


	For the three months ended March 31,
	2026		2025
Operating income (loss):
United States electrical construction and facilities services	$	174,481	$	136,057
United States mechanical construction and facilities services	221,643		186,747
United States building services	40,449		36,423
United States industrial services	12,780		6,760
Total United States operations	449,353		365,987
United Kingdom building services	—		4,987
Corporate administration	(45,508)		(52,218)
Consolidated operating income	403,845		318,756
Other items:
Net periodic pension income	—		54
Interest income, net	6,227		5,387
Income before income taxes	$	410,072	$	324,197

The following tables provide the significant expenses that are regularly provided to and reviewed by our CODM for each of our reportable segments for the three months ended March 31, 2026 and 2025 (in thousands):


	For the three months ended March 31,
	2026		2025
Cost of sales:
United States electrical construction and facilities services	$	1,165,763	$	876,243
United States mechanical construction and facilities services	1,648,918		1,265,710
United States building services	619,060		601,509
United States industrial services	330,542		308,095
Total United States operations	3,764,283		3,051,557
United Kingdom building services	—		93,097
Consolidated cost of sales	$	3,764,283	$	3,144,654

NOTE 13 - Segment Information (Continued)


	For the three months ended March 31,
	2026		2025
Selling, general and administrative expenses:
United States electrical construction and facilities services	$	107,170	$	75,544
United States mechanical construction and facilities services	155,780		120,145
United States building services	113,140		104,691
United States industrial services	38,507		44,147
Total United States operations	414,597		344,527
United Kingdom building services	—		7,217
Corporate administration	45,508		52,218
Consolidated selling, general and administrative expenses	$	460,105	$	403,962

The following tables present other financial information for each of our reportable segments for the three months ended March 31, 2026 and 2025 (in thousands):


	For the three months ended March 31,
	2026		2025
Depreciation and amortization of property, plant, and equipment:
United States electrical construction and facilities services	$	3,104	$	2,305
United States mechanical construction and facilities services	7,489		4,876
United States building services	3,891		4,041
United States industrial services	3,478		3,179
Total United States operations	17,962		14,401
United Kingdom building services	—		932
Corporate administration	400		249
Total depreciation and amortization of property, plant, and equipment	$	18,362	$	15,582


	For the three months ended March 31,
	2026		2025
Amortization of identifiable intangible assets:
United States electrical construction and facilities services	$	13,590	$	9,480
United States mechanical construction and facilities services	9,459		5,397
United States building services	5,242		5,565
United States industrial services	5,921		5,921
Total amortization of identifiable intangible assets	$	34,212	$	26,363

NOTE 13 - Segment Information (Continued)


	For the three months ended March 31,
	2026		2025
Capital expenditures:
United States electrical construction and facilities services	$	7,160	$	4,622
United States mechanical construction and facilities services	14,231		10,979
United States building services	2,389		3,343
United States industrial services	3,462		3,305
Total United States operations	27,242		22,249
United Kingdom building services	—		2,456
Corporate administration	1,470		1,426
Total capital expenditures	$	28,712	$	26,131

The following table presents the total assets for each of our reportable segments as of March 31, 2026 and December 31, 2025 (in thousands):


	March 31, 2026		December 31, 2025
Total assets:
United States electrical construction and facilities services	$	2,790,957	$	2,686,933
United States mechanical construction and facilities services	3,450,620		3,206,671
United States building services	1,423,810		1,436,779
United States industrial services	629,816		524,883
Total operations	8,295,203		7,855,266
Corporate administration	1,212,904		1,436,133
Total assets	$	9,508,107	$	9,291,399

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

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+ Details

Revenue from Contracts with Customers - Schedule of Disaggregation of Revenues (Details) - USD ($)
$ in Thousands

3 Months Ended

Mar. 31, 2026

Mar. 31, 2025

Revenue from Contracts with Customers - Schedule of Revenue. Remaining Performance Obligations, Expected Timing of Satisfaction (Details) $ in Thousands	Mar. 31, 2026 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 15,620,670
United States Electrical Construction And Facilities Services [Member] \| UNITED STATES
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	5,613,652
United States Mechanical Construction And Facilities Services [Member] \| UNITED STATES
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	8,563,253
United States Building Services [Member] \| UNITED STATES
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	1,307,689
United States Industrial Services [Member] \| UNITED STATES
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 136,076
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Remaining performance obligations	$ 12,166,170
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-04-01 \| United States Electrical Construction And Facilities Services [Member] \| UNITED STATES
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Remaining performance obligations	$ 4,256,824
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-04-01 \| United States Mechanical Construction And Facilities Services [Member] \| UNITED STATES
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Remaining performance obligations	$ 6,602,952
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-04-01 \| United States Building Services [Member] \| UNITED STATES
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Remaining performance obligations	$ 1,170,318
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-04-01 \| United States Industrial Services [Member] \| UNITED STATES
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Remaining performance obligations	$ 136,076
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Remaining performance obligations	$ 3,454,500
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-04-01 \| United States Electrical Construction And Facilities Services [Member] \| UNITED STATES
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Remaining performance obligations	$ 1,356,828
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-04-01 \| United States Mechanical Construction And Facilities Services [Member] \| UNITED STATES
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Remaining performance obligations	$ 1,960,301
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-04-01 \| United States Building Services [Member] \| UNITED STATES
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Remaining performance obligations	$ 137,371
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-04-01 \| United States Industrial Services [Member] \| UNITED STATES
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Remaining performance obligations	$ 0

New Accounting Pronouncements	3 Months Ended
New Accounting Pronouncements	Mar. 31, 2026
Accounting Standards Update and Change in Accounting Principle [Abstract]
New Accounting Pronouncements	New Accounting Pronouncements In November 2024, the Financial Accounting Standards Board issued an Accounting Standards Update (“ASU”), which requires disaggregated disclosures, in the notes to the financial statements, about certain income statement expense line items on an interim and annual basis. This guidance requires entities to provide more detailed information about purchases of inventory, employee compensation, depreciation expense, intangible asset amortization, and selling expenses. Such guidance, which is required to be applied prospectively, is effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027, although early adoption and retrospective application is permitted. While the adoption of this ASU will not have an impact on our financial position and/or results of operations, we are currently evaluating the impact on our financial statement disclosures, including the processes and controls around the collection of this information.

Condensed Consolidated Statements Of Comprehensive Income (Parenthetical) $ in Millions	3 Months Ended
	Mar. 31, 2025 USD ($)
Statement of Comprehensive Income [Abstract]
Post-retirement plans, tax	$ 0.2

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Statement of Financial Position [Abstract]
Allowance for credit losses (in US dollars)	$ 22,056	$ 22,757
Preferred stock, par value (in US dollars per share)	$ 0.10	$ 0.10
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in US dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	61,294,178	61,252,599
Treasury stock, shares	16,854,238	16,732,232

Commitment and Contingencies (Policies)	3 Months Ended
Commitment and Contingencies (Policies)	Mar. 31, 2026
Commitments and Contingencies Disclosure [Abstract]
Insurance Liabilities	Insurance Liabilities We have loss payment deductibles for certain workers’ compensation, automobile liability, general liability, and property claims, have self-insured retentions for certain other casualty claims, and are self-insured for employee-related healthcare claims. In addition, we maintain a wholly-owned captive insurance subsidiary to manage certain of our insurance liabilities. Losses are recorded based upon estimates of our liability for claims incurred and for claims incurred but not reported. The liabilities are derived from known facts, historical trends, and industry averages, utilizing the assistance of an independent third-party actuary to determine the best estimate for the majority of these obligations. To the extent that the amount required to settle claims covered by insurance continues to increase, the cost of our insurance coverage, including premiums and deductibles, is likely to increase.