Press Release

Comfort Systems USA Energy Services - June 2, 2009

Contact: Andrea Gross
Phone: 860-285-8312

Comfort Systems USA Energy Services Opens Little Rock Office, Provides Green and Energy Engineering Services
New office expands energy consulting services for customers

LITTLE ROCK, Ark. –June 1, 2009–Comfort Systems USA Energy Services, a subsidiary of Comfort Systems USA (NYSE: FIX), the premier provider of business solutions addressing workplace comfort, has announced today that it has opened an office in Little Rock, Arkansas. This office will add 5-15 new jobs into Arkansas over 24 months.

In addition to providing direct support on Energy Services projects and complementing existing resources of Comfort Systems USA Energy Services, the Little Rock office offers energy consulting for customers with emphasis on green buildings, sustainability project management, energy modeling, energy audits, energy savings measurement and verification, turn-key energy projects, existing building commissioning, new construction commissioning and energy procurement consulting.

“We are excited to expand our ability to deliver high-value services to Comfort Systems USA customers,” said W. Brewster Earle, president of Comfort Systems USA Energy Services. “Our ability to deliver solutions to help our clients lower their operating costs, make informed decisions regarding their energy use and continue to identify opportunities for operational efficiency is greatly enhanced by the talented team we have assembled in Little Rock.”

The Little Rock office is run by Vice President Timothy P. Staley, an engineer with a background in energy-related consulting engineering services.

Mr. Staley’s experience includes energy consulting, design consulting, commissioning, sustainability project management, managing energy supplies, energy procurement consulting, facilities maintenance and project management. Mr. Staley has more than 20 years’ experience in energy efficiency and commissioning, and has worked with various businesses.

“I am truly honored to be joining the Comfort Systems USA Energy Services team,” said Mr. Staley, who also went on to state, “The opportunity to combine our unique energy consulting services with the depth of resources offered by Comfort Systems USA is very exciting and will ultimately yield exceptional value for clients.”

Located at 650 South Shackleford Road #224, the Little Rock office can be contacted by calling (501) 320-2725.

About Comfort Systems USA
Comfort Systems USA(R) is a premier provider of business solutions addressing workplace comfort, with 74 locations in 59 cities around the nation. For more information, visit the Company's website at

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements are based on the current plans and expectations of Comfort Systems USA, Inc. and involve risks and uncertainties that could cause actual future activities and results of operations to be materially different from those set forth in the forward-looking statements. Important factors that could cause actual results to differ include, among others, national or regional weakness in non-residential construction activity, difficulty in obtaining or increased costs associated with bonding, shortages of labor and specialty building materials, the use of incorrect estimates for bidding a fixed price contract, undertaking contractual commitments that exceed our labor resources, retention of key management, the Company's backlog failing to translate into actual revenue or profits, errors in the Company's percentage of completion method of accounting, the result of competition in the Company's markets, seasonal fluctuations in the demand for HVAC systems, the imposition of past and future liability from environmental, safety, and health regulations including the inherent risk associated with self-insurance, adverse litigation results and other risks detailed in the Company's reports filed with the Securities and Exchange Commission. Important factors that could cause actual results to differ are discussed under "Item 1A. Company Risk Factors" in the Company's Annual Report on Form 10-K for the year ended December 31, 2007. These forward-looking statements speak only as of the date of this release. Comfort Systems USA, Inc. expressly disclaims any obligation or undertaking to release publicly any updates or revisions to any forward-looking statement contained herein to reflect any change in Comfort Systems USA, Inc.'s expectations with regard thereto or any change in events, conditions or circumstances on which any such statement is based.
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