Do I Need a Permit to Replace Windows in Wisconsin?
Window replacement permit requirements in Wisconsin depend on whether you are changing opening sizes or installing egress windows.
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 for like-for-like window replacement?
Some municipalities exempt like-for-like replacements in the same rough opening. Others require a permit for any window work. Always check with your local building department.
What are Wisconsin egress window requirements?
Sleeping rooms and finished basements require egress windows with minimum 5.7 sq ft net clear opening, at least 20 inches wide, 24 inches tall, and a sill no more than 44 inches from the floor.
How much does a window replacement permit cost?
Typically $50-$350 depending on municipality and number of windows. Egress installations involving structural work may cost more.
Building in multiple cities?
See permit requirements for any Wisconsin municipality instantly. Compare fees, timelines, and processes side by side across your active jurisdictions.