How to get a plumbing license in Montana
Edited by John Voll. Last verified .
Montana Board of Plumbers licenses plumbing contractors in Montana.
Who licenses plumbing work in Montana
| Credential | State license |
|---|---|
| Board | Montana Board of Plumbers official statement |
| Official lookup | Search plumbing licenses |
| License types | Plumber Master, Plumber Journeyman, Medical Gas Endorsement |
How to get licensed
- Apply to Montana Board of Plumbers as a Plumber Master or Plumber Journeyman or Medical Gas Endorsement.
- Master plumber must pass the board's master examination with a score of 70% or better. source
- Experience: master plumber needs 4 years as a licensed journeyman plumber, 3 of them (may run concurrently) with a master plumber or in a supervisory role; 1 year is 1,500 hours or more in 12 month. source
- Pay the master plumber by examination application fee of $380: $380. source
- All plumber licenses expire September 1 each year. source
Plumbing requirements in Montana
| Exam | Master plumber must pass the board's master examination with a score of 70% or better. source |
|---|---|
| Experience | Master plumber needs 4 years as a licensed journeyman plumber, 3 of them (may run concurrently) with a master plumber or in a supervisory role; 1 year is 1,500 hours or more in 12 month. source |
| Bond | No bond requirement found for master plumbers on an official source. |
| Insurance | No insurance requirement found for master plumbers on an official source. |
| Renewal | All plumber licenses expire September 1 each year. source |
| Reciprocity | No reciprocity provision found for plumber licenses on a readable official source. |
| Fees |
|
Hiring a plumbing contractor?
See every official lookup in Montana, which board covers which trade, and what to check before you hire.
Questions
- Do you need a plumbing license in Montana?
- Montana Board of Plumbers licenses plumbing contractors in Montana.
- How do I check a plumbing license in Montana?
- The Montana Board of Plumbers keeps the record for plumbing contractors in Montana. Use the official lookup on this page, and treat the board's own record as final.
- How much does a plumbing license cost in Montana?
- Master plumber by examination application fee of $380. Temporary journeyman work permit for exam candidates, $100 in addition to the application fee. FY 2026 plumber license renewal fee abated by 100 percent (late fees still apply); the standard renewal fee was not found on a readable official source.
- How much experience do you need for a plumbing license in Montana?
- Master plumber needs 4 years as a licensed journeyman plumber, 3 of them (may run concurrently) with a master plumber or in a supervisory role; 1 year is 1,500 hours or more in 12 month.
- How often does a plumbing license renew in Montana?
- All plumber licenses expire September 1 each year.
Other trades in Montana
- General contractor license in Montana
- Electrical license in Montana
- HVAC license in Montana
- Roofing license in Montana
- All Montana trades
Plumbing license in other states
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
Sources
- https://boards.bsd.dli.mt.gov/plumbers/
- https://ebizws.mt.gov/PUBLICPORTAL/searchform?mylist=licenses
- https://archive.legmt.gov/bills/mca/title_0370/chapter_0690/part_0030/section_0010/0370-0690-0030-0010.html
- https://boards.bsd.dli.mt.gov/plumbers/license-information/plumber-master
- https://archive.legmt.gov/bills/mca/title_0370/chapter_0690/part_0030/section_0050/0370-0690-0030-0050.html
- https://boards.bsd.dli.mt.gov/plumbers/license-information/index
- https://boards.bsd.dli.mt.gov/_docs/plu/plu-checklist.pdf
This is not a government site. The licensing board's own record governs; always confirm on the official lookup. Information as of October 6, 2026.