How to get a Plumbing license in New Jersey
The full New Jersey plumbing licensing path — experience hours, required exam, fees, and where to apply. Verified 6/12/2026.
Career prep, not a license.
Prep for the New Jersey Plumbing exam
Plumbing 101 — Start Here (Free) — self-paced lessons, practice exam, certificate of completion.
New Jersey Master Plumber License
Frequently asked questions
How do I get a plumbing license in New Jersey?
You need 4 yrs (8,000 hrs) practical experience under a licensed master or completion of approved apprenticeship + 1 yr journey-level experience.. Then pass the NJ Master Plumber Exam (National Standard Plumbing Code + NJ amendments) administered by PSI Services. Applications go through the NJ State Board of Examiners of Master Plumbers.
What exam do I need to pass?
NJ Master Plumber Exam (National Standard Plumbing Code + NJ amendments) — administered by PSI Services.
How much experience do I need?
4 yrs (8,000 hrs) practical experience under a licensed Master OR completion of approved apprenticeship + 1 yr journey-level experience.
What about fees, insurance, and continuing education?
NJ has Master-only licensing — no journeyman license. Apprentices register but do not license. $150 exam + $150 license biennially. Liability insurance + $3k bond required. CEU: 5 hrs every 2 yrs.
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