Plumbing and HVAC rules in Wyoming

Wyoming's State Fire Marshal licenses electrical trades only, and there's no state plumbing license. Cities such as Casper and Cheyenne license plumbing contractors and plumbers.^{1, 2, 3}

Wyoming's State Fire Marshal licenses electrical trades only, and there's no state license for heating and cooling work. Ask your city or county whether it licenses heating and cooling contractors.¹

Your local building department can tell you which plumbing and mechanical codes apply where you live.

Ask your local building department whether replacing a water heater, furnace or AC needs a permit where you live.

If your home has a backflow preventer, your water utility can tell you whether it needs testing and who can test it.