Do you need a license to work as a plumber in Minnesota?
Yes. In Minnesota, an individual must be licensed by the commissioner of labor and industry to work as a master, restricted master, journeyworker or restricted journeyworker plumber, and a business performing or offering plumbing work needs a contractor’s license. A plumbing business must have a licensed master plumber in charge of its plumbing work (a restricted master plumber in cities and towns under 5,000 people). An unlicensed person may do plumbing that meets the Plumbing Board’s standards on premises the person owns and actually occupies as a residence, unless a local ordinance forbids it. This is Minn. Stat. §§ 326B.46, 326B.01.
| What | Minnesota |
|---|---|
| Plumber license | State license (commissioner of labor and industry) |
Source
Minn. Stat. §§ 326B.46, 326B.01
Read the statute in the Minnesota Statutes (Office of the Revisor of Statutes): revisor.mn.gov.
Checked against the statute on November 13, 2026.
This is a summary of a published statute, not legal advice. Rules change, local ordinances can add to them, and the terms of a specific lease may differ. Check the citation and speak to a lawyer before acting.
How Seayora uses this rule
A contractor on Seayora keeps each license with its issuing state, its expiry date and the last four digits of its number, and the business is warned before one lapses — on the website and both phone apps. A customer finding a pro on Seayora sees whether a license is on file.
Guides on this rule
- Contractor License Requirements by State: Every Trade — Which states require a state license for electricians, plumbers, HVAC, general and home improvement contractors, with the statute for each.
Compare this rule in every state
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The same question in other states
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- Arkansas
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- Colorado
- Connecticut
- Delaware
- District of Columbia
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