v3.26.1

Cover - shares	3 Months Ended
Cover - shares	Mar. 31, 2026	May 08, 2026
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Entity Central Index Key	0002065636
Document Period End Date	Mar. 31, 2026
Document Fiscal Year Focus	2026
Document Fiscal Period Focus	Q1
Document Transition Report	false
Current Fiscal Year End Date	--12-31
Entity File Number	001-43117
Entity Registrant Name	SOLV Energy, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	33-4537250
Entity Address, Address Line One	16680
Entity Address, Address Line Two	West Bernardo Drive
Entity Address, City or Town	San Diego
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92127
City Area Code	858
Local Phone Number	251-4888
Title of 12(b) Security	Class A Common Stock, par value $0.0001 per share
Trading Symbol	MWH
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Common Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		115,348,571
Common Class B [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		87,046,962

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SOLV Energy, Inc. 10-Q