How to check a contractor license in Wisconsin

In Wisconsin, search the business name in the free LicensE License Lookup from the Department of Safety and Professional Services. A contractor who pulls building permits for one- and two-family homes needs a Dwelling Contractor credential and a certified Dwelling Contractor Qualifier. DSPS licenses electricians and plumbers too, so the same lookup covers them.

How do I find out if a contractor is licensed in Wisconsin?

Use the License Lookup in LicensE, the online system run by the Department of Safety and Professional Services (DSPS). You can search by credential number, individual name, organization name or license type, and a builder's record should show a Dwelling Contractor credential.

Open the DSPS License Lookup.
In the Search By dropdown, choose Credential/License Number, Individual Name, Organization Name or License Type.
For a builder, pick Organization Name, type the company name from the bid and look for a Dwelling Contractor credential. If nothing comes up, search the owner under Individual Name.
If you're typing a credential number, put a space on each side of the dash, as in 1234 - 123.
For an electrician or plumber, search the person's name and read the exact license type, such as Master Electrician or Journeyman Plumber.

The lookup refused to load for us outside a browser, so you may need to open it in a regular web browser. We last checked this lookup on 2026-10-19. If it still won't load, use the Credential Look Up link on the DSPS home page, or call DSPS at (608) 266-2112 or toll-free at (877) 617-1565.

A record can say expired while a renewal is being processed. DSPS says a license stays valid during its review if the renewal and payment went in by 11:59 p.m. on the last day of the renewal period. Call DSPS before you rule a contractor out over that one word.

Does Wisconsin require a general contractor license?

No, not under that name. Wisconsin's statewide credential for home builders is the Dwelling Contractor certification, which a contracting business needs before it can get building permits for one- and two-family dwellings.

The Dwelling Contractor must also hold, or employ someone who holds, a Dwelling Contractor Qualifier certification. It must keep either a surety bond of at least $25,000 or general liability insurance of at least $250,000 per occurrence. For work that doesn't need a permit for a one- or two-family dwelling, ask the local building department what it requires.

Who licenses electricians and plumbers in Wisconsin?

DSPS does, so the same License Lookup covers them. Its credential list includes journeyman and master electricians, registered electricians, journeyman and master plumbers, and apprentice credentials in both trades.

Several of those credentials come in narrower versions, such as Master Electrician, Residential or Master Plumber Restricted Service. Read the exact license type on the record. If the name doesn't make clear what it covers, ask the tradesperson before the work starts.

What does a Wisconsin license lookup not tell you?

It doesn't tell you how well the contractor builds. The bond or insurance a Dwelling Contractor keeps is a minimum the state sets, not a measure of the work.

The bond is a floor. A $25,000 bond can be small next to the cost of an addition or a new roof.
Expired may not mean expired. A renewal in progress can show that status, so call DSPS before you decide.
Some jobs need no dwelling credential. Local rules may apply instead, and only the building department can tell you what they are.
It doesn't confirm who's at the door. Make sure the person on site works for the business named on the credential.

A job near a state line can involve a contractor based next door, so check that state's records too. The lookups for Michigan, Minnesota, Iowa and Illinois are on their own pages.

This article is general information, not legal advice. Rules change, so confirm details with the Wisconsin Department of Safety and Professional Services.

Sources

Agents can keep these contractors in Proferral

Proferral is a free app real estate agents use to keep a go-to list of the providers they trust and to remember every referral they send. Its license checks cover Oregon and Washington only, so for Wisconsin you still run the lookup above by hand. Here's how Proferral's license checks work.

Start your list, free

It's free, no credit card needed, and you're never charged unless you choose Pro.