Health score, competitive moat, risk signals, and key metrics at a glance.
Comfort Systems USA, Inc., together with its subsidiaries, provides mechanical and electrical installation, renovation, maintenance, repair, and replacement services for the mechanical and electrical services industry in the United States. The company operates through two segments: Mechanical and Electrical. It offers heating, ventilation, and air conditioning systems, as well as plumbing, electrical, piping and controls, off-site construction, monitoring, and fire protection. The company is also involved in the design, engineering, integration, installation, and start-up of mechanical, electrical, and plumbing (MEP) and related systems in new buildings; and renovation, expansion, maintenance, monitoring, repair, and replacement of systems in existing buildings. In addition, it provides remote monitoring of power usage, temperature, pressure, humidity and air flow for MEP and other building systems. The company serves building owners and developers, general contractors, architects, consulting engineers, and property managers in the commercial, industrial, and institutional markets. Comfort Systems USA, Inc. was founded in 1917 and is headquartered in Houston, Texas.
Competitive analysis based on 59 quarters of fundamental data
Operating margins are expanding at ~13.4%, suggesting durable pricing power and cost discipline.
Consistently high ROE averaging 35.0% suggests a durable competitive advantage and efficient capital allocation.
Free cash flow is consistently positive and growing — a hallmark of a capital-light business that can self-fund growth.
TTM revenue has grown consistently (7 of 7 quarters up), with ~66.6% growth over the period. Strong demand durability.
Data-driven red flags and warnings across 59 quarters
Margins are stable or improving at ~15.6% — no sign of cost or pricing stress.
FCF covers net income by 1.0x on average — earnings are well-supported by cash generation.
D/E ratio is 0.0 — conservative capital structure with low financial risk.
Revenue is stable or growing over recent quarters — demand appears durable.
Free cash flow is consistently positive — the business self-funds without external capital reliance.
Share count is stable — no significant dilution or buyback activity.
as of March 2026
Revenue, EBITDA, operating income, net income, EPS, and shares
Gross, EBITDA, operating, and net margin trends
P/E, P/S, P/B, EV/EBITDA, FCF yield, and earnings yield
Total assets, cash, debt, book value, and leverage
Operating cash flow, free cash flow, FCF margin, and earnings quality
