The main cores of our business are commercial mechanical contracting, commercial plumbing and HVAC service, and preventive maintenance. We build and maintain high quality systems that are long-lived and highly-efficient providing an excellent return-on-investment and low energy costs.

Our Mission:
To provide the best value HVAC and mechanical systems installation and service, principally in the mid-market commercial industrial and institutional sectors, while caring for our customers, employees and the environment.

Our Philosophy
We believe that by providing our customers with quality, efficient and maintainable systems for their capital investments and then providing excellent service and preventive maintenance, we are doing our best for our customers and the environment. This approach has resulted in excellent referral business from past and existing customers.

History
Granite State Plumbing & Heating, Inc. was founded by Gerry Perron and incorporated in April of 1983 in the State of New Hampshire. From 1990 through 2005, GSPH was purchased by a series of increasing larger companies and is currently a wholly owned subsidiary of Comfort Systems USA which is headquartered in Houston, TX. CSUSA is publically traded on the NYSE under the symbol FIX. Comfort Systems and its companies have 79 locations in 59 cities across the United States and Puerto Rico.