Comfort Systems USA Inc. FIX

What this company does

Comfort Systems USA, Inc. provides mechanical and electrical contracting services. As of December 31, 2025, the company had approximately 22,700 employees, compared with approximately 18,300 employees as of December 31, 2024. It builds, installs, maintains, repairs and replaces mechanical, electrical and plumbing (MEP) systems through 50 operating units with 190 locations in 142 cities throughout the United States. Approximately 63.2% of its 2025 revenue was attributable to installation services in newly constructed facilities, and 36.8% was attributable to renovation, expansion, maintenance, repair and replacement services in existing buildings. Its consolidated 2025 revenue was 73.3% from mechanical services and 26.7% from electrical services. Its mechanical segment principally includes heating, ventilation and air conditioning (HVAC), plumbing, piping and controls, as well as off-site construction, monitoring and fire protection, while its electrical segment includes installation and servicing of electrical systems. Comfort Systems USA, Inc., a Delaware corporation, was established in 1997.

Written from the business description in COMFORT SYSTEMS USA INC's annual report to the U.S. Securities and Exchange Commission, filed 19 February 2026. Every sentence was checked against that document before publication.