Required for roof replacement, re-roofing, and structural roof repairs. Wisconsin Uniform Dwelling Code applies.
Required for new homes, additions, and major remodels. Includes all trades under combination permit system. Fees based on project valuation.
Required for garages, sheds, and outbuildings. Structures over certain square footage require permits—varies by municipality.
Common questions about St. Croix County combination permits, Wisconsin contractor registration, ice and water shield requirements, and unpermitted work consequences.
What is a combination permit in St. Croix County?
A combination permit is Wisconsin's approach to bundling building, electrical, plumbing, and HVAC permits into a single application and fee. Most St. Croix County municipalities use this system for new construction and major remodels — which simplifies the process compared to pulling separate trade permits. Your contractor submits one application covering all trades. Fees are based on project valuation. Ask your building inspector specifically whether your project qualifies for a combination permit before applying.
How does Wisconsin contractor registration differ from Minnesota licensing?
Wisconsin uses a state registration system through the Department of Safety and Professional Services (DSPS) — different from Minnesota's DOLI licensing. Contractors doing permitted work in St. Croix County must hold Wisconsin state registrations for their trade. If you're hiring a contractor based in Minnesota, verify they also hold Wisconsin DSPS registration — not all do. Check credentials at the Wisconsin DSPS contractor lookup before hiring for any permitted project in St. Croix County.
Why is ice and water shield required on St. Croix County roofs?
Wisconsin's Uniform Dwelling Code requires ice and water shield underlayment on all residential roofs — a vapor barrier installed along eaves and valleys to prevent water infiltration from ice dams. St. Croix County winters produce the same freeze-thaw conditions as Minnesota, making ice dams a real risk. This is a code requirement that must be verified at inspection — roofing permits in St. Croix County will not pass final inspection without it properly installed.
What happens if I do work without a permit in St. Croix County?
Local building inspectors can require completed work to be opened or demolished for inspection at your cost. Wisconsin law also allows for stop-work orders and fines for unpermitted construction. Unpermitted work must be disclosed when selling and can delay or kill a sale. For properties near the St. Croix River, unpermitted work may also trigger separate county zoning enforcement with additional penalties.
Determine which town or city your property is in. Contact your local building inspector or inspection agency—most municipalities contract with private agencies.
Gather site plans, construction drawings, contractor credentials, and project specifications. Wisconsin requires state registrations for contractors in most trades.
Submit application to your local building inspector with required documents. Pay fees by check or cash (credit cards not accepted in most municipalities). Allow 2-3 days minimum for processing.
Schedule required inspections at least one business day in advance. Wisconsin Uniform Dwelling Code requires specific inspection points. Keep permit card and approved plans on-site.
Cold climate requires R-49 attic insulation, R-20 walls, and proper air sealing per Wisconsin Energy Code. Heating system sizing critical for cold winters.
Roofing and siding materials must meet wind resistance requirements. Proper fastening patterns required for all exterior work.
All footings must extend at least 48 inches below grade in Wisconsin to prevent frost heave. Deeper than Minnesota requirements.
Properties near St. Croix River and lakes have special shoreland management requirements. Additional county zoning permits required for shoreland properties.
