Career LaddersJourneyman Plumber
Pass the MA Journeyman exam — you can now do licensed plumbing work without supervision.
The honest version
Once you've completed your 8,500 hours and 550 classroom hours, you sit for the MA Journeyman Plumber exam — a written test on the MA State Plumbing Code (248 CMR), pipe sizing, venting, drainage, water supply, and safety. Pass it, and you're a Journeyman. You can now perform any plumbing work in MA without a master watching your every move — but you still work under a master's overall supervision (a master plumber must be the licensed contractor of record on most projects). Most journeymen continue working for the same shop they apprenticed at, with a serious raise. Many start moonlighting small service calls (under their master's supervision) and saving toward their own license.
You'll fit if…
- You can run a job from rough-in to trim without hand-holding
- You take ownership of code compliance — your work has to pass inspection
- You stay calm in the worst calls (sewer backups, frozen pipes, no-heat in February)
- You can talk to homeowners clearly about what's wrong and what it'll cost
Core skills
- Independent rough-in of full bathrooms, kitchens, and laundry rooms
- Service plumbing — diagnosing and fixing leaks, clogs, and failures
- Drain cleaning with cable machines and jetters
- Reading and interpreting the MA State Plumbing Code (248 CMR)
- Pulling permits and dealing with town plumbing inspectors
- Water heater installation (electric, gas — gas requires gas license)
- Mentoring apprentices under you
Required certifications
Things that give you a leg up
- MA Gas Fitter license (separate track) — doubles the jobs you can take
- Service experience — service plumbers earn more than new construction in most MA markets
- OSHA 30, confined space, and first aid certifications
- Bilingual — service plumbers with language skills win more residential calls
Learn more
- Schedule your MA Journeyman exam the day your hours are signed off — don't wait
- Take a backflow tester course at a local trade school (1 week, ~$500–$900)
- Decide if you want to add the gas license track — it requires its own apprentice hours
- Open a separate savings account for your future Master license study time and exam fees
Real talk before you commit
- You're licensed but not the contractor of record — most jobs still need a master to pull the permit.
- Continuing education for renewal is real — miss the deadline and you can't legally work until you're current.
- Service work pays more but is on-call: nights, weekends, frozen pipe emergencies in January.
- MA winters destroy pipes. Service journeymen earn most of their year between December and March.