The essentials
- Licensing authorityBoard of State Examiners of Plumbers and Gas Fitters (Division of Occupational Licensure) — official site
- Statewide?Yes — Massachusetts licenses at the state level
- Experience requiredJourneyman: three years as a registered apprentice plus 300 hours of Board/DOE-approved plumbing theory. Master: at least one year as a licensed journeyman plus 100 hours of advanced plumbing theory. Confirm current hour requirements with the Board.
- ExamPSI Services LLC administers the plumbing and gas fitting exams on behalf of the Board; the Board reviews and approves applications first, then PSI schedules the exam
- Renewal & CEBiennial two-year license cycle; 248 CMR 11.04 requires 12 clock hours of Board-approved mandatory continuing education per cycle for plumbers (6 hours for gas fitters and LP gas installers), typically taken as 6 hours in each year of the cycle
- Bond / insuranceNot published in a form we could verify — confirm with the board
- ReciprocityNone we could confirm
License classes in Massachusetts
Massachusetts 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:
- Registered Apprentice Plumber — must be registered with the Board and directly supervised
- Journeyman Plumber (second class) — works under a master plumber
- Master Plumber (first class) — may contract and supervise
- Journeyman Gas Fitter — gas piping under a master gas fitter
- Master Gas Fitter — may contract for gas fitting work
- Undiluted Liquefied Petroleum (LP) Gas Installer — propane-specific license
Experience and training
Journeyman: three years as a registered apprentice plus 300 hours of Board/DOE-approved plumbing theory. Master: at least one year as a licensed journeyman plus 100 hours of advanced plumbing theory. Confirm current hour requirements with the Board.
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
PSI Services LLC administers the plumbing and gas fitting exams on behalf of the Board; the Board reviews and approves applications first, then PSI schedules the exam
Renewal and continuing education
Biennial two-year license cycle; 248 CMR 11.04 requires 12 clock hours of Board-approved mandatory continuing education per cycle for plumbers (6 hours for gas fitters and LP gas installers), typically taken as 6 hours in each year of the cycle
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 Massachusetts. 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 Massachusetts. 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
Plumbing and gas fitting are licensed as separate parallel ladders in Massachusetts — a plumbing license does not authorize gas work. The state uses its own Uniform State Plumbing Code (248 CMR) rather than a national model code, and CE courses must cover 248 CMR and NFPA 54 amendments; keep CE records for at least three renewal cycles in case of audit.
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 Massachusetts
Do you need a license to do plumbing work in Massachusetts?
Yes. Board of State Examiners of Plumbers and Gas Fitters (Division of Occupational Licensure) is the licensing authority for Massachusetts. Plumbing and gas fitting are licensed as separate parallel ladders in Massachusetts — a plumbing license does not authorize gas work. The state uses its own Uniform State Plumbing Code (248 CMR) rather than a national model code, and CE courses must cover 248 CMR and NFPA 54 amendments; keep CE records for at least three renewal cycles in case of audit.
Who issues the plumbing license in Massachusetts?
Board of State Examiners of Plumbers and Gas Fitters (Division of Occupational Licensure). The official site is https://www.mass.gov/orgs/board-of-state-examiners-of-plumbers-and-gas-fitters.
What license classes exist in Massachusetts?
Registered Apprentice Plumber — must be registered with the Board and directly supervised. Journeyman Plumber (second class) — works under a master plumber. Master Plumber (first class) — may contract and supervise. Journeyman Gas Fitter — gas piping under a master gas fitter. Master Gas Fitter — may contract for gas fitting work. Undiluted Liquefied Petroleum (LP) Gas Installer — propane-specific license.
How many hours of experience do you need for a Massachusetts plumbing license?
Journeyman: three years as a registered apprentice plus 300 hours of Board/DOE-approved plumbing theory. Master: at least one year as a licensed journeyman plus 100 hours of advanced plumbing theory. Confirm current hour requirements with the Board.
Who administers the Massachusetts plumbing exam?
PSI Services LLC administers the plumbing and gas fitting exams on behalf of the Board; the Board reviews and approves applications first, then PSI schedules the exam
How often does a Massachusetts plumbing license renew?
Biennial two-year license cycle; 248 CMR 11.04 requires 12 clock hours of Board-approved mandatory continuing education per cycle for plumbers (6 hours for gas fitters and LP gas installers), typically taken as 6 hours in each year of the cycle
Can I get booked plumbing appointments in Massachusetts once I am licensed?
Yes. Pipe Well Plumbing books customer appointments in Massachusetts 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 Massachusetts
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 MassachusettsPlumbing license requirements in other states
Compiled from Board of State Examiners of Plumbers and Gas Fitters (Division of Occupational Licensure) 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.