Directory of Plumbers

Licensing · California

Plumber licensing in California

138 plumbing businesses from California are listed on this directory, all labelled Unclaimed unless a business has joined and passed checks. This page states who licenses plumbers in California and where that license is verified.

Who licenses plumbers in California

California plumbing contractors hold the C-36 classification. The CSLB record shows status, classifications, bond, and workers compensation information.

How to verify a license

  1. Ask the business for its license number and the exact name the license is issued to.
  2. Search the CSLB license check and match the name to the business you are hiring.
  3. Confirm the classification covers your type of work, the status is active, and the expiration date is in the future.
  4. Check insurance separately: ask for a certificate of insurance. A license and insurance are different checks.

California metros on this directory

Questions about plumber licensing in California

Who licenses plumbers in California?

Contractors State License Board (CSLB), C-36 Plumbing. The model in California is: state licensing.

How do I verify a plumber's license in California?

Ask the business for its license number and the exact name on the license, then confirm in the official register that the name matches, the classification covers your work, the status is active, and the expiration date is in the future.

Does a license in another state count here?

No. A plumbing license authorizes work only in the jurisdiction that issued it. In local-licensing states, it may not cover the next city.

Method and cautions: plumber licensing by state (guide) · how we verify · Get matched free