Plumbing contractor (C-36) in Richmond, CA

There are 8 Plumbing contractor (C-36) licenses with an address of record in Richmond, CA, in the CSLB License Master data checked Oct 27, 2026. That is 0.3% of the 2,617 such licenses statewide; Richmond ranks #79 of 514 CA cities for this license type. They are spread across 4 ZIP codes; the most common are 94804 (4), 94806 (2), 94801 (1). Most list Contra Costa County. By business type: Sole Owner 4, Corporation 3, Partnership 1. The median first-issue year is 2018; the oldest license dates from 2016. None has an expiration date in the next 12 months, but status can change at any time (for example after discipline), so re-check before you sign a contract.

What a Plumbing contractor (C-36) license covers

Plumbing (C-36) covers systems that supply safe water and remove liquid and water-borne waste, including water heaters, fixtures, gas piping, drain lines and backflow devices.

How to verify a license

Enter the license number in CSLB Instant License Check and confirm the status is active, the classification matches the work, and the contractor has a current bond and workers' compensation coverage (or a valid exemption). California requires the license number on contracts and advertising. Official lookup: CSLB Instant License Check.

Plumbing contractor (C-36) licenses in Richmond

Showing 8 of 8, A to Z. Listing order is alphabetical, not a recommendation.