HVAC Website Problem Report

81% of HVAC Websites Have No License Number Displayed

We found this issue in 684 of 844 audited HVAC websites across the United States.

Last updated: March 2026 844 sites audited

Why This Matters

Displaying a license number is one of the simplest trust signals a contractor can show. Homeowners checking multiple HVAC companies will choose the one that visibly proves they're licensed. In many states, displaying your license number on your website is a legal requirement.

Frequency by State

Arizona

95%

Florida

89%

Texas

72%

Worst Markets for No License Number Displayed

City	Frequency	Affected Sites
Phoenix, AZ	97%	66 of 68
Tampa, FL	95%	61 of 64
St. Petersburg, FL	95%	21 of 22
Cape Coral, FL	90%	26 of 29
Sarasota, FL	90%	19 of 21

Best Markets for No License Number Displayed

City	Frequency	Affected Sites
McKinney, TX	57%	12 of 21
Fort Worth, TX	69%	20 of 29
Corpus Christi, TX	70%	16 of 23
Houston, TX	71%	60 of 85
Denton, TX	71%	12 of 17

What Top-Scoring Sites Do Differently

Top-scoring sites in the U.S. display their license number in the footer, on their About page, and often in the hero section. Some link directly to the state licensing board verification page.