State plumbing guide · NJ
Plumbing in New Jersey
New Jersey is one of the few states that uses the National Standard Plumbing Code rather than the IPC or UPC, as the plumbing subcode of its Uniform Construction Code. Master plumbers are licensed by a state board.
- Median home built
- 1971
- Built before 1980
- 61%
- Owner-occupied
- 64%
- Winter
- Regular hard freezes
- General statewide rating
- Plumbing code
- State code
- City guides
- 2
Housing figures: U.S. Census Bureau, ACS 2024 1-year (B25035, B25034).
New Jersey city plumbing guides
How to check a plumber's license in New Jersey
The New Jersey State Board of Examiners of Master Plumbers licenses apprentice, journeyman and master plumbers and regulates the practice of plumbing. [1]
New Jersey's older housing stock
Statewide, the median home was built in 1971 and 61% of homes predate 1980. Homes like that were usually built with copper supply, early plastic (ABS or PVC) drains, some cast iron. The city guides below show how much that varies within the state.
Which plumbing code applies in New Jersey
New Jersey's Uniform Construction Code uses the National Standard Plumbing Code (New Jersey edition) as its plumbing subcode; licensing exams are based on it. [2]
Seasonal problems to plan for in New Jersey
- Winter
- Hard freezes: protect exposed pipes, disconnect hoses. Frozen pipes.
- Hurricane season
- Know your main shutoff; watch for backups after storms.
New Jersey plumbing questions
How do I check a plumber's license in New Jersey?
Verify the master plumber license with the New Jersey Division of Consumer Affairs license lookup.
Which plumbing code applies in New Jersey?
The National Standard Plumbing Code, New Jersey edition, which is the plumbing subcode of the state's Uniform Construction Code.
Sources (3)
- U.S. Census Bureau, ACS 2024 1-year (B25035, B25034) · checked 2026-10-01
- NJ Division of Consumer Affairs, State Board of Examiners of Master Plumbers · checked 2026-10-01
- NJ Division of Consumer Affairs, State Board of Examiners of Master Plumbers · checked 2026-10-01