Our History
Comfort Systems USA, Southwest (CSUSA SW) began serving Arizona residential customers as Tri-City Air Conditioning in 1962. The company shifted focus to commercial mechanical contracting and service in 1976 and incorporated in 1977 as Tri-City Mechanical. In 1997 Tri-City Mechanical was one of twelve companies joining together to form a single national entity for mechanical services
known as Comfort Systems USA. Today, Comfort Systems USA has over 60 companies and is recognized as a premier national provider in the installation and service of heating, ventilating, air conditioning, plumbing, piping and related services. Tri-City Mechanical, recognized as a leading provider of these same services in the Southwest, became Comfort Systems USA Southwest in 2010. We offer single source Design-Build-Maintain services to meet all of your mechanical system needs.