Heating and air conditioning license in Maine
Who licenses it
Checked November 8, 2026. Rules and thresholds change; confirm with the board before you start work.
Homeowners: checking a pro
Ask for the license number, then look it up on the board's site above. On ExpertMarketplace every listing in this trade in Maine shows the number and whether we've checked it.
Pros: listing on ExpertMarketplace
Add your license number, state and expiry date when you create your page. A listing in this trade in Maine can't go live without it. Add your insurance too: listings show "Insured" or "No insurance on file" to every visitor.
Create my free pageHeating and air conditioning in Maine's biggest cities
PortlandLewistonBangorWest ScarboroughSouth PortlandSouth Portland GardensAuburnBiddefordSanfordSacoAugustaWestbrookWatervilleBrunswickYork BeachWells Beach StationOronoLisbonNorth BathBrewerPresque IsleOld Orchard BeachBathBuxtonEllsworthCaribouWinslowOld TownWaterboroSouth Berwick