Plumber License Requirements in California
| Licensing Authority | Contractors State License Board (CSLB) |
| License Type | C-36 - Plumbing |
| Experience Required | 4 years of journeyman-level plumbing experience within the last 10 years |
| Education Substitute | Accredited degree substitutes up to 3 years |
| Exam Required | Yes — Law & Business + C-36 Plumbing Trade |
| Bond Required | Yes — $25,000 |
| Insurance | General liability: recommended. Workers comp: required with employees |
| Continuing Education | Not required |
| Processing Time | 6-12 weeks |
Fee Breakdown
| Application Fee | $450 |
| Initial License Fee | $200 |
| Fingerprinting | $49 |
| Est. Initial Total | $699 |
Renewal: $450 every 2 years
Exam Requirements
Law & Business
C-36 Plumbing Trade
Exam provider: PSI
License Reciprocity
This state has reciprocity agreements with 4 states. View full reciprocity details — You may be able to skip the trade exam if you hold a valid license from one of these states.
Frequently Asked Questions
Do I need a plumber license in California?
Yes, California requires a statewide plumber license through the Contractors State License Board.
How much does a plumber license cost in California?
The estimated initial cost is $699, including application, exam, and license fees. A $25,000 surety bond is also required.
What experience do I need for a plumber license in California?
4 years of journeyman-level plumbing experience within the last 10 years Education substitute: Accredited degree substitutes up to 3 years
What exams are required for a plumber license in California?
You must pass the Law & Business and C-36 Plumbing Trade exams. A passing score of 72% is required. Exams are administered by PSI.
Do I need a bond for a plumber license in California?
Yes, a $25,000 surety bond is required.
Does California have plumber license reciprocity?
Yes, California has reciprocity agreements with 4 states that may apply to plumbers. Licensed contractors from these states may be eligible to skip certain exams or have an expedited application process.
How long does it take to get a plumber license in California?
Processing time is typically 6-12 weeks after submitting a complete application.
Is continuing education required for plumbers in California?
No, California does not currently require continuing education for plumber license renewal.
Data last verified: 2026-04-02 | Source: CSLB