Comfort Systems revenue rose 53.7% to $3.77 billion in the third quarter as technology-sector and data-center work boosted both operating segments. The Houston-based mechanical and electrical contractor released the results on October 22, 2026, for the quarter ended September 30.
Comfort Systems revenue rises 54% on data-center work
Net income increased to $489.0 million from $291.6 million, and diluted earnings per share rose from $8.25. Gross profit reached $934.5 million, while gross margin held at 24.8%. The figures came from the company’s official earnings release and Form 10-Q.
Mechanical-segment revenue rose 42.7% to $2.58 billion. Electrical revenue increased 84.8% to $1.18 billion. Comfort Systems said same-store growth reflected strength in the technology sector and data-center work, reinforcing a broader infrastructure trend also visible in AI data-center supply-chain investment.
Q3 2025 (light) vs. Q3 2026 (dark). Source: Comfort Systems USA earnings release and Form 10-Q, October 22, 2026. Bars are normalized within each metric.
Operating cash flow nearly doubled from $553.3 million a year earlier. For the first nine months, cash from operations reached $2.54 billion on $9.90 billion of revenue. The cash conversion matters because investors often compare headline earnings with liquidity, a distinction covered in this guide to reading an earnings report.
Comfort Systems revenue outlook gains record backlog support
Backlog ended September at $17.81 billion, compared with $14.06 billion at June 30 and $9.38 billion a year earlier. Same-store backlog was $17.39 billion, indicating that most of the increase did not depend on recent acquisitions.
The 10-Q also puts a boundary around that signal. Comfort Systems said backlog represents only part of future revenue, usually over the next six to 12 months, and has limited predictive value because projects can change or be canceled.
Even with that caveat, the scale of the order book points to sustained demand for complex cooling, electrical and modular systems. Other energy-infrastructure suppliers have reported similar AI-related demand, including Bloom Energy’s third-quarter revenue growth. Investors will now watch whether labor availability, project timing and execution allow Comfort Systems to convert the backlog without compressing margins.
Sharron Kendi
Sharron Kendi is a seasoned crypto market analyst and writer with over three years of experience decoding blockchain trends, price movements, and market dynamics. She holds a Bachelor’s Degree in Commerce (Finance) from Kenyatta University, blending a solid academic foundation with a sharp eye for technical analysis and a deep understanding of on-chain data. Her work delivers clear, data-driven insights that empower investors to navigate the fast-evolving digital asset space with confidence.
