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License guides

For homeowners checking a pro, and pros listing on ExpertMarketplace: who licenses each trade in every state, with a link to the board. Checked November 8, 2026. Rules change, so always confirm with the board.

PlumbersAll 50 states and DC ElectriciansAll 50 states and DC Heating and air conditioningAll 50 states and DC RoofersAll 50 states and DC General contractorsAll 50 states and DC Kitchen and bath remodelersAll 50 states and DC Foundations and waterproofingAll 50 states and DC Pools, spas and hot tubsAll 50 states and DC Pest controlAll 50 states and DC Home inspectors and appraisersAll 50 states and DC Mold, asbestos and restorationAll 50 states and DC Solar and energy efficiencyAll 50 states and DC Designers and architectsAll 50 states and DC