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Wisconsin
Plumbers in Wisconsin
40 plumbing businesses in its metro areas within about 25 to 35 miles of Milwaukee and Madison – plus how Wisconsin licenses plumbers.
Metro areas
Wisconsin cities we cover
Wisconsin rules
Do plumbers need a license in Wisconsin?
How Wisconsin licenses plumbers
Plumbers are licensed by the state.
Who licenses: Wisconsin Department of Safety and Professional Services (DSPS)
License types: Master Plumber, Journeyman Plumber, Master Plumber Restricted Service, Master Plumber Restricted Appliance, Journeyman Plumber Restricted Service, Journeyman Plumber Restricted Appliance, Plumbing Apprentice, Plumbing Learner Restricted Service, Plumbing Learner Restricted Appliance, Pipe Layer, Utility Contractor, Cross-Connection Control Tester.
Businesses: Wisconsin has no separate plumbing contractor license; state law requires that no plumbing be installed unless a licensed master plumber is in charge and responsible for the installation (Wis. Stat. 145.06(2)).
Check a license: licensesearch.wi.gov
Confirm the plumber's DSPS credential (and whether it is full or restricted service/appliance) on the state's license search, and ask which licensed master plumber is in charge of your job.
Sources: docs.legis.wisconsin.gov, dsps.wi.gov, licensesearch.wi.gov. Checked October 2026 from official sources. This is not legal advice.
Before you hire
Ask for the license number and check it on the official lookup where one exists. Ask for proof of insurance and a written, itemized estimate, and ask who pulls the permit if the job needs one – water heaters, repiping and sewer lines often do.
Questions
Wisconsin plumbing questions
Do plumbers need a license in Wisconsin?
Wisconsin licenses plumbers statewide through the Wisconsin Department of Safety and Professional Services (DSPS). You can check a license at licensesearch.wi.gov.
Where in Wisconsin do you list plumbers?
In Wisconsin: Milwaukee (21), Madison (19). Each city page lists plumbers based within about 25 miles (35 in smaller metro areas) whose own website names that city or nearby towns.
How do I get a plumber listed in Wisconsin?
Plumbing businesses can add their business free. We check every listing against the business’s own website.
Free plumber request
Tell us the problem. We’ll connect you with a local plumber in Wisconsin.
- 1Tell us the job and your ZIP code
- 2We send it to listed plumbers who serve your area
- 3They contact you directly
Free, no obligation. If no listed plumber serves your area, we’ll tell you. Water pouring in? Shut off the main valve first, then call a plumber from the list.