Williamson County, TX HVAC Contractors

What a Texas HVAC license means

Air conditioning and refrigeration work in Texas is regulated by the Texas Department of Licensing & Regulation (TDLR). A contractor performing HVAC work in Williamson County must hold a TDLR-issued ACR contractor license: Class A covers equipment of any size, while Class B covers cooling systems up to 25 tons and heating systems up to 1.5 million BTU/h.

Earning the license requires documented practical experience, a state examination, and proof of insurance, and keeping it requires annual renewal with continuing education. When you hire, ask for the license number, confirm it matches the company name on your estimate, and check the expiration date. Each listing on this page shows the license record we retrieved from TDLR; you can also verify any license directly at tdlr.texas.gov.