How to Become a New Jersey Plumber

New Jersey has a statewide licensing scheme for plumbers and plumbing contractors. The New Jersey State Board of Examiners of Master Plumbers runs this licensing program. An aspiring plumber first starts out as an apprentice plumber. He can then move on and must work as a journeyman plumber under a master plumber. Finally, after getting certain experience or education and passing a New Jersey plumbing exam, an applicant can become a master plumber.

Step 1:

Join a plumbing apprenticeship program and then register as an apprentice plumber. You can access the registration form here. The fee is $50, as of 2010. When applying for the various New Jersey plumber licenses and registrations, pay by a certified check or money order to the State of New Jersey. Complete a four-year apprenticeship program to qualify for higher levels of New Jersey plumbing professionals.

Step 2:

You can then move up to the journeyman plumber level. You need to work as a journeyman plumber for at least one year to qualify for the highest level, which is an independent master plumber. Access the registration form here. The fee is $75 or $50 if you have registered as an apprentice plumber in New Jersey.

Step 3:

Complete the experience and educational requirements of a master plumber. As stated above, you first need to complete a four-year apprenticeship. You then must work at least one year as a journeyman plumber. This adds up to a total of five years, which is generally exactly what you need to become a New Jersey master plumber.

The other way to qualify as a master plumber is to get a bachelor’s degree in plumbing, mechanical engineering or sanitary engineering. You must graduate from an accredited school. The U.S. Department of Education website has a list of accredited schools. However, such graduates must still get one year of experience, either as a journeyman or apprentice plumber. You should also make yourself up to date with the new trends like technologies about plumbing. You can visit websites like for more information

When you are ready to take the exam and apply for a license, access the application form here.


There are some other forms necessary to complete your New Jersey plumber applications. You can access these forms here.

Step 4:

Prepare for the New Jersey plumbing exam. Prometric is the exam administrator. Only the master plumber applicants must pass an exam. Access the candidate information bulletin. You need to take a master plumber trade exam, a business and law exam and a hands-on practical exam. Call 800-626-0750 to ask about current exam fees and other questions.

The bulletin will give you exam reference materials, exam content outlines and information about how to register for the exam. Make sure you are ready before applying to become a New Jersey master plumber.

Assuming everything else is in order, you can then get your New Jersey plumbers license as a master plumber.


A New Jersey plumbing contractor can be a master plumber who works alone or a business entity where a master plumber owns at least 10 percent of the company.



Julia Arostegi lives in California USA. She took Developmental Communication at the University of California and finished her studies in 2012. She is currently the managing director of California Magazine. She is also a blogger, content enthusiast and a photographer.