1
Earn a High School Diploma or GED
A high school diploma or GED is required to enter a plumbing apprenticeship or degree program. Courses in math, science, and shop are helpful.
Plumber
UPDATED FOR 2026
Plumbers install, repair, and maintain piping systems, fixtures, and appliances that facilitate water, gas, and waste flow in residential, commercial, and industrial settings. Their work ensures safety, efficiency, and compliance with local plumbing codes and regulations.
In New Jersey, becoming a licensed plumber requires a multi-step process: completing a state-approved apprenticeship (or relevant degree), gaining journeyman experience, passing the Master Plumber exams, and obtaining a $3,000 surety bond. All plumbers performing work must be licensed by the NJ State Board of Examiners of Master Plumbers.
Step-by-Step Guide
2
Complete a State-Approved Plumbing Apprenticeship or Relevant Degree
Enroll in a 4-year NJ-registered plumbing apprenticeship or obtain a bachelor’s degree in mechanical/plumbing engineering.
- Find programs: NJ Apprenticeship Finder or UA Local 24 Apprenticeship
- 4 years (8,000 hours) of paid on-the-job training + classroom instruction
- Must register as an apprentice plumber with the Board: Apprentice Application (PDF)
3
Gain Experience as a Journeyman Plumber
After completing your apprenticeship/degree, work as a journeyman plumber for at least 1 year under a licensed master plumber.
- Apply for journeyman status: Journeyman Application
- Maintain logs of hours and projects completed
4
Pass the NJ Master Plumber Licensing Exams
Apply to take the NJ Master Plumber license exams:
- Business & Law Exam
- Trade Knowledge Exam
- Exam info & registration: PSI Exams - NJ Master Plumber
- Exam fee: $240 per exam (as of 2026, may change)
5
Obtain a $3,000 Surety Bond
Secure a $3,000 surety bond as required by the NJ State Board.
- See bond info: NJ Surety Bond Requirements
- Annual cost for bond: typically $100–$200/year depending on provider
6
Apply for and Maintain Your Master Plumber License
Submit your license application with all documentation (experience, exam results, bond).
- Apply: NJ Plumber Application Portal
- Application fee: $100 (as of 2024)
- Renew biennially, keep bond active, and complete required continuing education (5 hours every 2 years)
- Track requirements & renew: NJ Board of Examiners of Master Plumbers