Business and Organization	3 Months Ended
Mar. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business and Organization	Business and Organization Limbach Holdings, Inc. (the “Company,” “we” or “us”), a Delaware corporation headquartered in Warrendale, Pennsylvania, is a building systems solutions firm who strives to be an indispensable partner to building owners with mission critical mechanical (heating, ventilation, air conditioning), electrical, and plumbing infrastructure. The Company’s focus is in six vertical markets; healthcare, industrial and manufacturing, data centers, life science, higher education and cultural and entertainment. The Company provides comprehensive facility services with expertise in the management and maintenance of mechanical, electrical, plumbing and controls systems who uniquely combines engineering solutions with field installation expertise to provide custom solutions. The Company has approximately 1,400 employees in 20 offices across the eastern United States and operates primarily in the Eastern and Midwest regions of the United States. The Company operates in two segments, (i) Owner Direct Relationships (“ODR”), in which the Company performs owner direct projects and/or provides maintenance or service primarily on mechanical, plumbing or electrical systems, building controls and specialty contracting projects to existing buildings direct to, or assigned by, building owners or property managers, and (ii) General Contractor Relationships (“GCR”), in which the Company generally manages new construction or renovation projects that involve primarily mechanical, plumbing, or electrical services awarded to the Company by general contractors or construction managers. The Company's work is primarily performed under fixed price, modified fixed price, and time and material contracts over periods of typically less than two years.

Business and Organization

3 Months Ended

Mar. 31, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Limbach Holdings, Inc. (the “Company,” “we” or “us”), a Delaware corporation headquartered in Warrendale, Pennsylvania, is a building systems solutions firm who strives to be an indispensable partner to building owners with mission critical mechanical (heating, ventilation, air conditioning), electrical, and plumbing infrastructure. The Company’s focus is in six vertical markets; healthcare, industrial and manufacturing, data centers, life science, higher education and cultural and entertainment. The Company provides comprehensive facility services with expertise in the management and maintenance of mechanical, electrical, plumbing and controls systems who uniquely combines engineering solutions with field installation expertise to provide custom solutions. The Company has approximately 1,400 employees in 20 offices across the eastern United States and operates primarily in the Eastern and Midwest regions of the United States.

The Company operates in two segments, (i) Owner Direct Relationships (“ODR”), in which the Company performs owner direct projects and/or provides maintenance or service primarily on mechanical, plumbing or electrical systems, building controls and specialty contracting projects to existing buildings direct to, or assigned by, building owners or property managers, and (ii) General Contractor Relationships (“GCR”), in which the Company generally manages new construction or renovation projects that involve primarily mechanical, plumbing, or electrical services awarded to the Company by general contractors or construction managers. The Company's work is primarily performed under fixed price, modified fixed price, and time and material contracts over periods of typically less than two years.