Minnesota and Wisconsin each publish their own rules for roofers and homeowners. These are the official pages behind our roofing guides, so you can read them yourself.
Minnesota Roofing License Resources
The Minnesota Department of Labor and Industry (MN DLI) licenses residential roofers, remodelers and building contractors.
- MN DLI license lookup: Check a license number, or download the full license file.
- Residential contractor licensing: Who needs a license, and what each license type covers.
- Tips for hiring a contractor: Warning signs, what a contract should include, and authorization forms.
- Contractor Recovery Fund: Compensation for some losses caused by licensed contractors.
- Enforcement actions: MN DLI’s actions against residential building contractors.
- Minnesota Statutes 325E.66: The law on contractors and insurance claims.
MN DLI contractor questions: Licenses, disciplinary history and complaints. Call 651-284-5069, or 800-342-5354.
Wisconsin Contractor Resources
Wisconsin has no state roofer license. The Department of Safety and Professional Services (DSPS) issues the Dwelling Contractor certification, and the Department of Agriculture, Trade and Consumer Protection (DATCP) enforces the home improvement rules.
- DSPS Dwelling Contractor certification: What the certification requires.
- DSPS LicensE lookup: Check the status of a Wisconsin credential.
- DATCP home improvement tips: Hiring a contractor, contracts, lien waivers and your right to cancel.
- ATCP 110, home improvement practices: The rules on contracts, warranties and permits.
- Wisconsin Statutes 100.65: The law on roof contracts and insurance claims.
Wisconsin Consumer Protection Hotline: DATCP’s line for complaints about a contractor. Call 800-422-7128.
Ice Dams and Attic Insulation
- University of Minnesota Extension: ice dams: What causes them and how to prevent them.
- Minnesota Home Energy Guide: Air sealing and insulating an attic.