Plumbing License Exam Prep Course
Becoming a Licensed Master Plumber is a major achievement. While self-study is possible, an Exam Prep Class can simplify the process and improve your chances of success.
Plumbing License Exam Overview
The New Jersey Plumbing License Exam is administered by PSI Exams on behalf of the NJ State Board of Examiners of Master Plumbers. It includes three parts, outlined below.
👉 Click here to download the Candidate Bulletin on the PSI Exams website.
The bulletin includes everything you need to prepare: exam structure, topics covered, scheduling details, and the currently accepted editions of the codebooks. Be sure to review it a few weeks before your class begins to ensure you're using the correct materials.
Exam Breakdown
Part 1
Trade Exam
Focus on the NSPC codebook, with some questions on trenching
100 questions in 190 minutes
Part 2
Practical (Drawings)
Includes questions on sizing and DFUs for DWV systems and roof drains, along with rolling offsets, parallel piping, and developed length
25 questions in 100 minutes
Part 3
Business and Law
Based on the NASCLA Business, Law, and Project Management Guide
50 questions in 130 minutes
Required Books for the Plumbing License Exam:
You can purchase all the books listed in the reference materials, but the two you must buy—because you're allowed to bring them into the exam—are:
NSPC 2018
NASCLA Contractors Guide NJ, 1st Edition
That said, I recommend holding off on buying the 2018 NSPC for now. The 2021 version has already been approved, and PSI Exams may update the test accordingly. To be safe, check the Candidate Bulletin about a month before your class starts to confirm which version will be required.
You may highlight and tab the books permanently, but writing in them is not allowed.
Where to Go for More Info:
📌 NJ Board of Examiners of Master Plumbers (Application & Licensing)
📌 PSI Services (Exam Scheduling)
Scott’s Plumbing Exam Prep Course
What’s Included in our Prep Course?
As part of the Plumbing Exam Prep Course, you will receive access to:
Online quizzes to take before and after each class.
Multiple online sample tests on each subject.
Unlimited access: If you don’t pass the exam the first time, you can attend the Exam Prep Classes again within two years at no additional cost.
Our course is designed to cover all the necessary trade topics, practical drawings and business law sections, ensuring you’re thoroughly prepared for all parts of the exam.
Plumbing Exam Prep Spring 2025 Class Schedule
The Plumbing Exam Prep course includes five sessions:
Four Online Sessions (via Zoom)
March 18 – Trade Topics (6:30 - 9:00 pm)
March 25 – Trade Topics (6:30 - 9:00 pm)
April 1 – Practical/Drawing (6:30 - 9:00 pm)
April 15 – Business and Law (6:30 - 9:00 pm)
One In-Person Session at Residence Inn Woodbridge - 2 Regency Pl, Woodbridge NJ 07095
April 19 – Class Review (8:00 am - 3:00 pm)
Choose a Plumbing Exam Prep Option:
-
COMPLETE COURSE
$1000
Includes all five sessions:
Online (via Zoom):
2 Trade Topics Sessions
1 Practical/Drawing Session
1 Business Law & Regulations SessionIn-Person:
1 Review Class
-
TRADE TOPICS
$450
Includes:
Online (via Zoom):
2 Trade Topics Sessions
In-Person:
1 Review Class
-
PRACTICAL/DRAWING
$275
Includes:
Online (via Zoom):
1 Practical/Drawing Session
In-Person:
1 Review Class
-
BUSINESS AND LAW
$275
Includes:
Online (via Zoom):
1 Business Law & Regulations Session
In-Person:
1 Review Class