Licensed HVAC Contractors in Texas

Active licenses

18,360

Counties covered

229

Densest county

Harris

Methodology

How HVAC Contractor licensing works in Texas

Texas regulates HVAC contractors through the Texas Department of Licensing & Regulation (TDLR). To install, alter, or repair air conditioning or refrigeration equipment over 25 tons, a contractor must hold a Class A license; under 25 tons, a Class B license is sufficient. Endorsements such as RAS (Process Cooling), Hydronics, and Combustion appear on the license number itself. Licenses run on a one-year cycle and require continuing education for renewal. A licensed contractor must employ a Responsible A/C Contractor whose name appears on every active license record.