Contractor License Proof
A licensed Plumbing contractor at work on a California project

Plumbing Contractors in California (C-36)

California licenses thousands of Plumbing contractors through the CSLB. This directory tracks 18,076 of them — 17,378 currently active (96%), with 100% carrying a contractor bond on file and 47% showing workers' compensation coverage. Every profile is dated against the official CSLB public record.

18,076
Listed
17,378
Active
18,074
With bond
8,577
With WC

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Plumbing contractors

Frequently asked questions

How many Plumbing contractors are licensed in California?

This directory lists 18,076 Plumbing contractors in California, of which 17,378 currently hold an active CSLB license.

How do I check if a Plumbing contractor is licensed in California?

Open the contractor's profile here for their dated CSLB status, or look up their license number directly on the CSLB "Check a License" tool. A license must be active — not expired, suspended, or inactive — to be valid.

Should a Plumbing contractor carry a bond and workers' compensation?

Most active CSLB licensees carry a contractor bond, and any contractor with employees must carry workers' compensation. Each profile shows what the CSLB record reports.