Plumbing Licensing in California
Do plumbing contractors need a license in California?
In California, plumbing contractors are generally required to hold a state-issued license from the California Contractors State License Board. Always confirm a contractor's license number and current status directly with the CSLB before you hire.
Source: California Contractors State License Board (official record)Find licensed plumbing contractors in California
Browse California plumbing businesses sourced from the California Contractors State License Board public registry — each listing shows its license number and links to the official record.
Browse Plumbing in California →How to verify a licensed plumbing contractor in California
- Ask for the state license number. Every licensed plumbing contractor in California is issued a unique license number by the California Contractors State License Board. Ask for it before work begins.
- Look it up with the California Contractors State License Board. Enter the license number in the California Contractors State License Board's official public license-check record to confirm it is real and current.
- Confirm the license is active and matches the business. Check that the license status is active/clear and that the name on the record matches the business you are hiring.
- Verify the classification covers the work. Confirm the license classification authorizes plumbing work specifically, not just general contracting.
Plumbing licensing in California: FAQ
Do plumbing contractors need a license in California?
Yes. California generally requires plumbing contractors to hold a state-issued license from the California Contractors State License Board. The applicable credential is the C-36 Plumbing contractor license under the Contractors State License Law (Business & Professions Code §7000 et seq.; Division 3, Chapter 9). Confirm the specific scope and any exemptions on the official CA record.
Who issues plumbing licenses in California?
California Contractors State License Board (CSLB) issues and maintains plumbing contractor licenses in California.
How can I check if a plumbing contractor is licensed in California?
Ask for the contractor's state license number and look it up in the California Contractors State License Board's official public license record. Confirm the status is active and the name matches.
Does FindTrustedHelp guarantee a contractor is licensed?
No. FindTrustedHelp publishes government-sourced license records with the issuing authority and a link to the official CA record so you can verify status yourself. We do not guarantee any specific outcome, ranking, or hire.
S36 P02 board (ca-cslb). Credentials cited per-record to the CSLB Instant License Check detail page (cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=).
Source & verification
Licensing requirement and issuing authority for California: California Contractors State License Board (official .gov record). Credential & basis: C-36 Plumbing contractor license under the Contractors State License Law (Business & Professions Code §7000 et seq.; Division 3, Chapter 9). FindTrustedHelp summarizes public records and links to the official source; always verify a contractor's current status directly with the CSLB.