How to Become a Licensed Plumber in California

In order to become a licensed plumber in California, you will need to obtain a contractor’s license from the Contractors State Licensing Board (CSLB) 

What follows are the current requirements to become a licensed plumber in California.

These requirements are only if you want to become a licensed plumber and are not required if you will be working under a licensed plumber or as an apprentice or employee of plumbing contractor.

A plumber’s contractor license is not required if you don’t advertise yourself as a licensed plumber and do not contract jobs costing $500 or more, including labor and materials.

Here we go:

First, you must be at least eighteen (18) years of age.

Second, you need to have at least four (4) years of experience at the journeyman level in the last ten (10) years. Journeyman level experience can be obtained by completing an apprenticeship program or by actual work experience. You must be able to perform plumbing work unsupervised. If the work experience was attained by actual work experience, the jobs performed cannot include jobs that are more than $500 in labor and materials combined. For more information on what constitutes journeyman level experience visit this link.

Third, fill out the appropriate application. There is a different application for LLCs. Additional forms that may be required along with the application can be found at this page. Make sure you use only black or blue ink. Otherwise the application will be returned to you.

Fourth, submit your completed application with the processing fee of $300.00 and supporting documents to the following address:

CSLB Headquarters
Contractors State License Board
PO Box 26000
Sacramento, CA 95826-0026

Fifth, the CSLB will send you a letter of acknowledgement and receipt.

Sixth, you may or may not need to take an exam after your application is processed successfully. Please see this link for more information.

Seventh, get fingerprinted and Live Scan.  For more information follow this link.

Eight, receive license and pay license fees and possible additional fees. For more information follow this link.

Any additional questions can be addressed by telephone to the CSLB at 1(800) 321-2752