Plumbing contractor (C-36) in Antioch, CA
7 licenses · checked Oct 27, 2026
There are 7 Plumbing contractor (C-36) licenses with an address of record in Antioch, CA, in the CSLB License Master data checked Oct 27, 2026. That is 0.3% of the 2,617 such licenses statewide; Antioch ranks #86 of 514 CA cities for this license type. They are spread across 2 ZIP codes; the most common are 94531 (5), 94509 (2). Most list Contra Costa County. By business type: Sole Owner 5, Corporation 2. The median first-issue year is 2018; the oldest license dates from 2015. 5 of them come up for renewal or expiration in the next 12 months, so re-check status 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 Antioch
Showing 7 of 7, A to Z. Listing order is alphabetical, not a recommendation.
- Almighty Plumbing#1055136 · 94531
- D P Plumbing#1025210 · 94531
- Delta Plumbing AND Rooter#1001441 · 94531
- Gregorio Salgado#1047287 · 94531
- Handlin 'IT Plumbing#1055937 · 94509
- Reliable Water Heaters#1040979 · 94531
- U S Plumbing & Rooter INC#1030825 · 94509
Frequently asked questions
How many Plumbing contractor (C-36) licenses are in Antioch?
7 active licenses in the CSLB License Master data checked Oct 27, 2026 (0.3% of CA).
What does a Plumbing contractor (C-36) license cover?
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 do I verify a Plumbing contractor (C-36) license in Antioch?
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. Use the license number shown here with the CSLB Instant License Check.
How many Antioch Plumbing contractor (C-36) licenses expire soon?
5 of 7 have an expiration date in the next 12 months. A license that lapses must be renewed before the holder can work under it again.
Other license types in Antioch
General building contractor (30) · Electrical contractor (C-10) (16) · Painting contractor (C-33) (8) · Landscaping contractor (C-27) (8) · HVAC contractor (C-20) (7) · Flooring contractor (C-15) (6) · Tile contractor (C-54) (4) · Roofing contractor (C-39) (3)
All Plumbing contractor (C-36) licenses in CA →
Source: CSLB License Master. Licensed California is independent and not affiliated with the licensing agency. Data checked Oct 27, 2026.