Do I Need a Permit to Replace a Furnace in Wisconsin?
Furnace replacement requires an HVAC/mechanical permit in Wisconsin. Gas furnaces also require gas piping inspection.
Yes, you typically need a permit. Requirements vary by municipality. Check with your local building department for specifics.
Where to Apply
Permit requirements, fees, and processing times vary by municipality. Check the specific requirements for your location:
Browse all jurisdictions →Frequently Asked Questions
Do I need a permit to replace my furnace?
Yes. Wisconsin requires a mechanical/HVAC permit for furnace replacement. Gas furnaces also require verification of proper venting and gas piping.
Who can install a furnace in Wisconsin?
Furnace installation must be performed by or under the supervision of a credentialed HVAC contractor registered with DSPS.
How much does a furnace permit cost?
Mechanical permits for furnace replacement typically cost $50-$200 in Wisconsin.
Building in multiple cities?
See permit requirements for any Wisconsin municipality instantly. Compare fees, timelines, and processes side by side across your active jurisdictions.