Comfort Systems USA Investor Presentation Update

On October 28, 2025, Comfort Systems USA, Inc. posted an investor presentation on its website, which it plans to use in meetings with analysts, potential investors, and other interested parties. The presentation includes non-GAAP financial measures that management uses to analyze the company's performance. These measures are intended to provide supplemental information essential for understanding the operating results of the company's core businesses. However, they should not be viewed as a substitute for GAAP results. The presentation also contains forward-looking statements based on the company's expectations, which involve risks and uncertainties that could cause actual results to differ materially from those projected. The company has disclosed these risks in its SEC filings, including its Annual Report on Form 10-K for the year ended December 31, 2024.