Comfort Systems USA posts strong Q1 2026 with 56.5% revenue and 121% EPS growth, but valuation prompts HOLD rating.

Comfort Systems USA reported outstanding Q1 2026 results, showing 56.5% revenue growth and 121% earnings per share (EPS) growth year-over-year. The company's backlog hit a record $12.5 billion, fueled by strong demand from advanced technology and data center clients. Despite these strong fundamentals and expanding profit margins, the stock trades at a high valuation of 43 times 2026 EPS, more than twice the sector median. Due to the stretched valuation and technical overbought conditions, the analyst downgraded the stock to a 'HOLD' rating, suggesting investors wait for a potential price pullback before buying.