How can I tell if my hvac contractor is licensed in Maryland?
Ask the hvac contractor for their Maryland State Board of Heating, Ventilation, Air-Conditioning, and Refrigeration Contractors license number, then verify it at the board's public lookup. The license must be Active, the class must include Master HVACR / Journeyman HVACR / Limited HVACR, and there must be no open disciplinary actions. Groundcheck (earthmove.io/trust) does this in under 90 seconds and cross-checks court, OSHA, and BBB records simultaneously.
Confirming a hvac contractor's license in Maryland is a 3-step process. First, get the license number from the contractor — every legitimate hvac contractor working in Maryland should have one and should give it on request. If they refuse or hedge, walk away. Second, plug it into the Maryland State Board of Heating, Ventilation, Air-Conditioning, and Refrigeration Contractors public lookup at https://www.dllr.state.md.us/license/hvacr/. Third, verify three fields on the lookup result: license status (must read "Active"), expiration date (must be in the future), and disciplinary history (must be clean).
What classification matters: Master HVACR / Journeyman HVACR / Limited HVACR. Maryland HVAC contractors working under any other classification are not authorized for the installs, repairs, and maintains heating, ventilation, air conditioning, and refrigeration systems you're hiring them for. Confirm the license covers the type of work being performed.
Red flags that the license isn't legitimate or the hvac contractor is misrepresenting: the license number doesn't return a result, the lookup returns a different name or business than you were given, the status is "Suspended" or "Inactive," the license is in another contractor's name (the hvac contractor is using someone else's license — illegal in every state), or the disciplinary history shows multiple open complaints.
What if the hvac contractor won't share their license number? In Maryland, every licensed hvac contractor is required to display the license number on all advertising, business cards, contracts, and vehicles. If they can't or won't provide it, they're either unlicensed or hiding something.
The fast path: run a free Groundcheck at earthmove.io/trust. Enter the contractor name and Maryland as the state. Groundcheck queries Maryland State Board of Heating, Ventilation, Air-Conditioning, and Refrigeration Contractors, the Secretary of State, federal court records, OSHA inspection history, and BBB complaints, then returns a single sourced verdict. The contractor is never notified.
Detailed Maryland hvac contractor licensing rules: earthmove.io/trust/license/hvac/maryland.
Verify a Maryland hvac contractor now
Free Groundcheck cross-references Maryland State Board of Heating, Ventilation, Air-Conditioning, and Refrigeration Contractors licensing with court records, OSHA history, and BBB complaints. Under 90 seconds. The contractor is never notified.