Do I Need a Permit for a Bathroom Remodel in Wisconsin?

Whether a bathroom remodel requires permits in Wisconsin depends entirely on the scope of work. Cosmetic updates — replacing tile, painting, installing a new vanity top, swapping out faucets or showerheads in the same location, or replacing a toilet in the same rough-in location — do not require permits. However, the moment you move plumbing lines, add new electrical circuits, or modify structural elements, permits are required. A plumbing permit is needed when you relocate a sink, toilet, or shower drain; add a new fixture; or modify supply or drain lines. An electrical permit is required when adding circuits, moving outlets, or installing new lighting (bathroom exhaust fans wired to a new circuit also require an electrical permit). A building permit is needed if you are removing or modifying walls, especially load-bearing walls, or changing the bathroom's footprint. For a full gut renovation that includes moving plumbing and electrical, expect to pull a building permit ($150–$500), plumbing permit ($50–$150), and electrical permit ($50–$200). Total permit costs for a comprehensive bathroom remodel in Wisconsin typically run $250 to $850. Skipping required permits can result in fines, failed home sale inspections, and insurance claim denials if something goes wrong with unpermitted work.

Check Your Municipality

Permit requirements, fees, and exemptions vary by municipality. Verify the specifics for your location.