Comfort Systems USA Elects Gary E. Hess President; Names Milburn Honeycutt Senior Vice President.

Business Editors

HOUSTON--(BUSINESS WIRE)--August 22, 2000

Comfort Systems USA, Inc. (NYSE: FIX), a leading provider of commercial/industrial heating, ventilation and air conditioning (HVAC) and related services today announced the appointment of Gary E. Hess, 53, as President, in addition to his role as Chief Operating Officer. Mr. Hess will have direct responsibility for all of Comfort's operations and all of its business development and sales assist efforts. The Company also announced the appointment of Milburn Honeycutt to the office of Senior Vice President.

Bill Murdy, Comfort Systems USA's Chairman and CEO said, "Gary has served as our Chief Operating Officer and Executive Vice President for over a year, and I am confident that his contribution will increase in his new role. By making Gary our President we are furthering our focus on the Company's operations. Milburn's new title is recognition of his important contribution as a key member of our management. The Company is in a period of transition in which virtually all of the Company's resources are focused on sharing expertise and bringing more value to our customers. We are truly becoming one Company."

"Gary continues to demonstrate the vision and operational skills required to continue our growth and strengthen our national network of operating companies," continued Bill Murdy. "Gary's enthusiasm and experience will be key elements in executing Comfort Systems USA's growth and integration strategies."

Gary Hess, Comfort Systems USA's newly appointed President and ongoing Chief Operating Officer continued, "Comfort Systems USA has tremendous opportunities and resources. We are committed to executing our core values of customer service and wise utilization of assets, and as President I will work to insure that every resource we have is fully committed to bringing value to our customers, employees and stockholders."

Gary Hess joined Comfort Systems USA in 1998 with over 25 years of experience in the HVAC industry. While at Comfort Systems he has served in senior management positions of increasing responsibility, including Director of Comfort System's Northeast Region, Senior Vice President - Operations, and Executive Vice President and Chief Operating Officer. In 1980 Mr. Hess founded Hess Mechanical Corporation, a major regional commercial/industrial HVAC company based in Washington, DC which was acquired by Comfort Systems in 1998. In addition, Mr. Hess played a significant role in developing Associated Builders and Contractors (ABC), a leading industry organization, and served as ABC's National President during 1996. In 1997, ABC named Mr. Hess National Contractor of the Year and awarded Hess Mechanical ABC's National Excellence in Construction Award.

Milburn Honeycutt has served as Vice President and Corporate Controller for Comfort Systems USA since its initial public offering. He has thirteen years of financial and accounting experience, formerly with Browning-Ferris Industries, Inc., a waste services company, and with Arthur Andersen LLP.

Comfort Systems USA is a premier provider of business solutions addressing workplace comfort, environments, processes and energy services, with more than 120 locations in 87 cities around the nation. Comfort Systems USA has annualized revenues of approximately $1.5 billion and is based in Houston. For more information, visit the Company's web-site at www.comfortsystemsusa.com.

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, risks associated with acquisitions and variations in stock prices, changes in government regulations, competition, and risks entailed in operations and growth of newly acquired businesses and other risks detailed in the Company's reports filed with the Securities and Exchange Commission.