How to get a Plumbing license in Massachusetts
The full Massachusetts plumbing licensing path — experience hours, required exam, fees, and where to apply. Verified 6/12/2026.
Career prep, not a license.
Prep for the Massachusetts Plumbing exam
Plumbing 101 — Start Here (Free) — self-paced lessons, practice exam, certificate of completion.
Massachusetts Master Plumber License
Frequently asked questions
How do I get a plumbing license in Massachusetts?
You need journeyman: 4 yrs (8,500 hrs) apprenticeship under licensed master + 550 hrs classroom. master: 1 additional yr as journeyman.. Then pass the Massachusetts Master Plumber Exam (248 CMR Mass Plumbing Code) administered by PSI Services. Applications go through the Massachusetts Board of State Examiners of Plumbers and Gas Fitters.
What exam do I need to pass?
Massachusetts Master Plumber Exam (248 CMR Mass Plumbing Code) — administered by PSI Services.
How much experience do I need?
Journeyman: 4 yrs (8,500 hrs) apprenticeship under licensed Master + 550 hrs classroom. Master: 1 additional yr as Journeyman.
What about fees, insurance, and continuing education?
MA tightly regulates plumbing — separate gas-fitter license is also required for gas work. Apprentice $20, Journeyman $84/2yrs, Master $156/2yrs. 4 hrs CEU per renewal (includes code update). Reciprocity with NH, ME for Journeyman.
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