Michigan runs a clean four-step ladder, and every rung requires paperwork with the state. You get a plumbing license in Michigan through LARA, the Department of Licensing and Regulatory Affairs, via its Bureau of Construction Codes.
Who runs plumbing licensing in Michigan
The LARA Plumbing Division administers the Michigan Plumbing Code, licensing, and exams, with the State Plumbing Board overseeing the rules.
License types and requirements
- Apprentice Plumber: register with the state within 30 days of starting employment, then build hours under a licensed plumber.
- Journeyman Plumber: be at least 18 and document 6,000 hours (about 3 years) as a registered apprentice, then pass the state exam.
- Master Plumber: add 4,000 hours (about 2 years) of experience as a licensed journeyman, then pass the master exam.
- Plumbing Contractor: the business license. A company needs a qualifying individual who holds a Michigan master plumber license before it can hold a contractor license and pull permits under its own name.
Renewals and continuing education
- Journeyman licenses renew annually by April 30.
- Master licenses renew every 3 years by April 30.
- Masters complete a code update course when Michigan adopts a new plumbing code.
How to apply
Applications, exam schedules, and fee sheets are on the LARA plumbing pages.
FAQ
How long until I can run my own plumbing company in Michigan?
Roughly 5 years of hours: 6,000 as an apprentice, then 4,000 as a journeyman, then the master exam and the contractor license.
Do I need the contractor license if I already have a master license?
Yes, if you want to operate as a business and pull permits under your company. The master license qualifies you; the contractor license covers the company.
What about the business setup itself?
Read how to start a plumbing business, compare states on the plumbing license by state index, or start with the plumbing license overview.
Requirements change. Always confirm current rules, fees, and forms with the board before you apply. This page is a guide, not legal advice.
