Contractor license guide
Wisconsin has no general license for all remodeling work. To get a building permit for a one- or two-family dwelling, a contractor needs a Dwelling Contractor certification (or a restricted version) from the Department of Safety and Professional Services (DSPS), and must hold or employ a certified Dwelling Contractor Qualifier. There is no dollar threshold; the rule is tied to permits. Home improvement sales and contracts are regulated by the Department of Agriculture, Trade and Consumer Protection (ATCP 110).
Statewide license
Partly
Last checked
October 16, 2026
Plain-English summary of official sources. Rules and fees change, so confirm with the licensing office before you apply. This guide isn't legal advice.
Contracting businesses that obtain building permits for one- and two-family dwellings. Held by the business; the applicant is the owner, a partner or the chief executive.
An individual who must be held or employed by the permit applicant along with the Dwelling Contractor certification.
An alternative to the Dwelling Contractor certification for obtaining one- and two-family dwelling permits.
Under ATCP 110 (Home Improvement Practices), a home improvement contract must be in writing if the buyer pays before the work is finished, or if the seller solicited the job away from its place of business (in person, by mail, phone or flyers). The contract must be signed by all parties and include the seller's name and address (and any sales agent), a description of the work and materials, the total price including finance charges, start and completion dates, any mortgage or security interest, any warranty, and other documents that are part of the contract. All changes must also be in writing. On request, the seller must provide lien waivers from contractors, subcontractors and suppliers. Sellers may not ask for final payment or a completion certificate before the work is done, or misrepresent that they are licensed, bonded or insured. A buyer who loses money because of a violation may sue and recover twice the loss.
DSPS also licenses electricians (registered and journeyman), plumbers (including journeyman plumbers) and HVAC qualifiers.
Local building departments issue permits for one- and two-family dwellings and require the state Dwelling Contractor credentials. Check with the municipality for any local contractor registration.
We couldn't confirm these on an official page when we checked. Ask the licensing office before you rely on them:
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