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Our History

Comfort Systems USA, Southwest (CSUSA SW) began serving Arizona customers in 1962. The company shifted its focus from residential to commercial mechanical contracting and service in 1976. In 1990 CSUSA SW added the Design-Build component to its commercial focus. In 1997 Comfort Systems USA, Southwest was one of twelve companies from around the nation that joined together to form Comfort Systems USA.

Today, Comfort Systems USA is recognized as a premier national provider in the installation and service of heating, ventilating, air conditioning, plumbing, piping and related services. CSUSA SW is a leading provider of these same services in Arizona. We offer single source Design-Build-Maintain services to meet all of your mechanical system needs.

Tri-City Mechcanical started service Arizona in 1962

CSUSA SW Timeline

1962 - Company started as Tri-City Air Conditioning

1976 - Shifted focus to Commercial Mechanical Contracting and Service

1977 - Incorporated as
Tri-City Mechanical

1997 - CSUSA was founded by TCM & 11 other national companies

2007 - TCM reached $100 million in annual revenue

2009 - Expanded to California & Nevada