Heating and air conditioning license in Iowa

Who licenses it
Iowa Plumbing and Mechanical Systems Board ↗
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 Iowa 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 Iowa can't go live without it. Add your insurance too: listings show "Insured" or "No insurance on file" to every visitor.
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Heating and air conditioning in Iowa's biggest cities

Other Iowa license guides