The essentials
- Licensing authorityMontana Board of Plumbers, Business Standards Division, Montana Department of Labor & Industry — official site
- Statewide?Yes — Montana licenses at the state level
- Experience requiredJourneyman: five years of legally obtained field plumbing experience verified by affidavit and vouched for by an active licensed master plumber or plumbing contractor, or a completion certificate from a registered apprenticeship program (commonly cited as 7,500 aggregate hours — confirm with the Board). Master: four years as a licensed journeyman with three of those years in a supervisory capacity or working with a licensed master, or nine years of experience verified by notarized statements.
- ExamState examination administered for the Board — written and practical, 70% or better required to pass
- Renewal & CEAnnual renewal; 4 hours of Board-approved, code-related continuing education required each year (courses must have prior Board approval)
- Bond / insuranceNot published in a form we could verify — confirm with the board
- ReciprocityNone we could confirm
License classes in Montana
Montana issues the following classes. Getting the class right matters — several states have residential-only or limited-scope licenses that will not cover commercial or multifamily work:
- Plumbing apprentice — training through a registered apprenticeship program
- Journeyman Plumber — licensed to perform plumbing work
- Master Plumber — supervisory/contracting level license
Experience and training
Journeyman: five years of legally obtained field plumbing experience verified by affidavit and vouched for by an active licensed master plumber or plumbing contractor, or a completion certificate from a registered apprenticeship program (commonly cited as 7,500 aggregate hours — confirm with the Board). Master: four years as a licensed journeyman with three of those years in a supervisory capacity or working with a licensed master, or nine years of experience verified by notarized statements.
One thing worth knowing regardless of state: the hours only count if they were logged properly at the time. Several boards require you to register as an apprentice before the clock starts, and hours worked while unregistered are simply gone. If you are early in the trade, get the registration paperwork right now rather than reconstructing it four years later.
The exam
State examination administered for the Board — written and practical, 70% or better required to pass
Renewal and continuing education
Annual renewal; 4 hours of Board-approved, code-related continuing education required each year (courses must have prior Board approval)
Letting a license lapse is more expensive than it looks. Some states allow a short grace period with a penalty fee; others treat a lapsed license as forfeited and make you retest from scratch. Put the renewal date in your calendar with a 90-day warning, not a 7-day one.
Insurance and bonding
We could not verify a published state bond or insurance minimum for Montana. That does not mean you should work uninsured — local permit offices, general contractors and property managers routinely require a certificate regardless of what the state demands.
Separately from whatever the state requires: Pipe Well requires every plumber on the network to carry current general liability insurance and to upload the certificate before the first appointment is sent.
Working across state lines
We could not confirm any published reciprocity agreement for Montana. That does not always mean there is none — several states evaluate out-of-state licenses case by case, or let you sit for the exam on the strength of a license held elsewhere. If you are relocating, call the board and ask specifically about endorsement or credential review rather than assuming you start over.
What plumbers actually get wrong here
Montana's journeyman route is experience-and-affidavit driven — an active licensed Montana master plumber or plumbing contractor must vouch for your hours, which is a real obstacle for applicants relocating from out of state without a local sponsor. CE must be pre-approved by the Board before it counts, so courses taken from an unapproved provider will not satisfy the annual requirement.
Once you are licensed: getting the work
A license gets you legal. It does not get you a full schedule. The usual next step is buying leads — $40 to $85 for a contact that three or four other shops bought at the same moment, which at a realistic 10–20% close rate works out to somewhere between $300 and $1,000 for every job you actually book, plus the unpaid hours spent chasing the ones that go nowhere.
Pipe Well works the other way round. We book appointments, not leads, and we handle everything up to the moment you knock on the door: the advertising, the phone call, qualifying the job, getting the address and access details, and agreeing a date and time window with the homeowner. What reaches your phone is a scheduled appointment — name, address, time window and what is wrong. You reply YES and it is yours.
What it costs
Nothing to join. No subscription, no per-lead charge. You do the job, you set your own price, and you collect payment from the customer directly. Then Pipe Well is paid 50% of the job after your documented materials come off the top:
(amount collected − documented materials) × 50%
| Collected | Materials | Net | Pipe Well | You keep |
|---|---|---|---|---|
| $400 | $40 | $360 | $180 | $220 |
| $1,200 | $520 | $680 | $340 | $860 |
| $2,800 | $800 | $2,000 | $1,000 | $1,800 |
| $8,500 | $3,200 | $5,300 | $2,650 | $5,850 |
Due within 48 hours of the customer paying you. If they never pay, you owe nothing. And look honestly at that last row — on a big repipe our share is a large number. If your book is already full of $8,500 jobs you are better off filling that capacity yourself. We are worth most to a shop with open capacity it cannot currently fill.
Apply free → Run your own numbersQuestions plumbers ask about licensing in Montana
Do you need a license to do plumbing work in Montana?
Yes. Montana Board of Plumbers, Business Standards Division, Montana Department of Labor & Industry is the licensing authority for Montana. Montana's journeyman route is experience-and-affidavit driven — an active licensed Montana master plumber or plumbing contractor must vouch for your hours, which is a real obstacle for applicants relocating from out of state without a local sponsor. CE must be pre-approved by the Board before it counts, so courses taken from an unapproved provider will not satisfy the annual requirement.
Who issues the plumbing license in Montana?
Montana Board of Plumbers, Business Standards Division, Montana Department of Labor & Industry. The official site is https://boards.bsd.dli.mt.gov/plumbers.
What license classes exist in Montana?
Plumbing apprentice — training through a registered apprenticeship program. Journeyman Plumber — licensed to perform plumbing work. Master Plumber — supervisory/contracting level license.
How many hours of experience do you need for a Montana plumbing license?
Journeyman: five years of legally obtained field plumbing experience verified by affidavit and vouched for by an active licensed master plumber or plumbing contractor, or a completion certificate from a registered apprenticeship program (commonly cited as 7,500 aggregate hours — confirm with the Board). Master: four years as a licensed journeyman with three of those years in a supervisory capacity or working with a licensed master, or nine years of experience verified by notarized statements.
Who administers the Montana plumbing exam?
State examination administered for the Board — written and practical, 70% or better required to pass
How often does a Montana plumbing license renew?
Annual renewal; 4 hours of Board-approved, code-related continuing education required each year (courses must have prior Board approval)
Can I get booked plumbing appointments in Montana once I am licensed?
Yes. Pipe Well Plumbing books customer appointments in Montana and texts them to licensed plumbers whose service radius covers the address. Joining is free — no subscription and no per-lead fee. Pipe Well is paid 50% of the job after your documented material costs are deducted, and only after the customer has paid you.
Booked appointments in Montana
Set your ZIP and a service radius of at least 30 miles and we will match appointments inside it. Free to join.
Join Free → Plumbing jobs in MontanaPlumbing license requirements in other states
Compiled from Montana Board of Plumbers, Business Standards Division, Montana Department of Labor & Industry published materials, last reviewed July 2026. Where a figure could not be verified against a primary source we have said so rather than estimate it. Spotted something out of date? Email info@pipewellplumbing.com and we will correct it.