Comfort Systems USA said revenue for Q3 2025 increased $638.6 million, or 35.2%, to $2.45 billion compared to the same period in the prior year. The increase included a 33.3% increase in revenue related to same-store activity and a 1.9% increase related to the Right Way and Century acquisitions.

1. 01

   Comfort Systems USA said revenue for Q3 2025 increased $638.6 million, or 35.2%, to $2.45 billion compared to the same period in the prior year. The increase included a 33.3% increase in revenue related to same-store activity and a 1.9% increase related to the Right Way and Century acquisitions.

2. 02

   The company said revenue for its mechanical segment for Q3 2025 increased $371.8 million, or 25.8%, to $1.81 billion, and revenue for its electrical segment increased $266.8 million, or 71.4%, to $640.5 million. It cited increased activity in the technology sector at its Texas electrical operation ($200.3 million) as the primary driver of the electrical segment increase.

3. 03

   Comfort Systems USA said backlog as of September 30, 2025 was $9.38 billion, a 15.4% increase from June 30, 2025 backlog of $8.12 billion and a 65.1% increase from September 30, 2024 backlog of $5.68 billion.

4. 04

   The company said it amended its senior credit facility on August 27, 2025, increasing its borrowing capacity from $850.0 million to $1.10 billion. As of September 30, 2025, outstanding borrowings on the revolving credit facility were $100.0 million, letters of credit outstanding were $83.2 million and credit available was $916.8 million.

Key figures

Quarter ended September 30, 2025

Revenue

$2.5B

Operating income

$379M

Net income

$292M

EPS

$8.25

Gross profit

$608M

Analysis scope · Management's discussion (MD&A)We analyzed excerpts of the Management's Discussion and Analysis (MD&A) section (with omissions). Other sections of the report, such as the notes to the financial statements and risk factors, were not reviewed.

AI summarized the filing and translated the summary into English; it may differ from the original. For reference only, not investment advice. AI translated the published Korean report into English. Figures are copied as filed, not recalculated.

Original filing

The filing as submitted to SEC EDGAR. You can check the figures and statements of this summary against it.