HVAC contractor licensing in District of Columbia
Who licenses heating and cooling contractors in District of Columbia, what the classes mean, and how to check one before you sign.
Statewide
Who licenses
HVAC contractors
—
Active licenses
in the public registry
2026Q4.2
Data version
updated monthly
Who licenses HVAC contractors
DC Department of Licensing and Consumer Protection (DLCP), Board of Industrial Trades licenses heating and air conditioning contractors across District of Columbia. Relevant classes: Refrigeration and Air Conditioning Mechanic (Master, Journeyman); Basic Business License with Home Improvement Contractor endorsement.
How to check a contractor
- Find the license number on the quote, the truck or the website.
- Look it up in the official registry and confirm the name, class and expiry match.
- Ask for proof of liability insurance and, where required, a bond.
Sources
- DC Department of Licensing and Consumer Protection (DLCP), Board of Industrial Trades — https://dlcp.dc.gov/
Second opinion
Get one fair quote from a licensed local pro
Tell us the job and when suits you. We confirm by phone or text, then pass your request to one licensed contractor who covers your ZIP. Nobody else gets your number.
- We confirm the job before anyone calls you
- One contractor, never a bidding list
- License checked with the state
- Free for homeowners