Master Plumber
The highest plumbing credential in Wisconsin, authorizing the holder to plan, lay out, and supervise plumbing installations of any complexity. Required to pull plumbing permits and serve as the master for a plumbing business.
How to Get a Master Plumber in Wisconsin
| Issuing Body | WI DSPS |
| Initial Fee | $60 |
| Exam Required | Yes — Must pass the Master Plumber exam covering the Wisconsin Plumbing Code (SPS 381-387), Uniform Plumbing Code, drainage, venting, water supply, and cross-connection control. Minimum 70% passing score. |
| Experience Required | Must hold a Journeyman Plumber credential and have at least 4 years of journeyman-level experience (8,000 hours minimum). |
| Application | Apply online → |
Continuing Education
Wisconsin requires 24 hours of continuing education every Biennially (even-numbered years, December 14) to renew your master plumber.
24 hours of approved continuing education per 2-year cycle, including Wisconsin plumbing code updates (SPS 381-387).
License Lookup & Verification
Verify a master plumber holder's credentials through the Wisconsin DSPS online license lookup tool.
Verify a License →Reciprocity Agreements
Wisconsin has license reciprocity agreements with the following states for master plumber holders. Reciprocity terms vary — contact WI DSPS for specific requirements.
Frequently Asked Questions — Master Plumber
What are the requirements for a master plumber license in Wisconsin?
You need at least 4 years as a licensed Journeyman Plumber (8,000 hours minimum), passage of the Master Plumber exam, and 24 hours of continuing education per renewal cycle. The exam covers Wisconsin Plumbing Code SPS 381-387.
Can I pull plumbing permits without a master plumber license?
In most Wisconsin municipalities, only a Master Plumber or a plumbing contractor with a Master Plumber on staff can pull plumbing permits. Homeowners may pull permits for work on their own single-family residence in some jurisdictions.
Does Wisconsin have reciprocity for plumbing licenses?
Wisconsin has reciprocity agreements with Minnesota, Illinois, and Michigan. Applicants from these states must still apply through DSPS and may need to pass Wisconsin-specific code sections.
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