Septic companies in Contra Costa County, California
7 septic companies on record across Contra Costa County, built from public data.
- Companies
- 7
- Cities covered
- 3
Septic Permits in Contra Costa County
California has more than 1.2 million septic systems, and one statewide policy governs all of them. The State Water Resources Control Board adopted it in 2012 and amended it in April 2023. Your county, not the state, is almost always the office that issues your permit.
Every company on record in Contra Costa County
Ordered by verification score. The score counts records rather than workmanship, and the license line says which of three things is true: verified against the roster, checked and not found on it, or not yet checked at all.
- 30Williams Sanitary Service IncRegister not checked(925) 634-4855
- 25Val Betti PlumbingRichmondRegister not checked(925) 270-4323
- 25Val Betti PlumbingWalnut CreekRegister not checked(925) 270-4323
- 25United Site ServicesAntiochRegister not checked(800) 864-5387
- 20Castle Pumping and Plumbing ServicesRegister not checked(408) 417-3091
- 10A-1 Rapid RooterWalnut CreekRegister not checked(925) 872-7633
- 0Bay Area Restaurant Services LLCRegister not checked(888) 994-0753
The license check in California
California publishes a roster we can check a company against, and we have not run it against these 7 companies yet, so every license on this page currently reads as unverified. That is our backlog and not their standing.
Cities in Contra Costa County
- Walnut Creek 2
- Antioch 1
- Richmond 1
How these are ranked
By verification score, out of 100, across six checks published in full on how we rank. No company paid to appear and none can pay to rank higher. The score counts records and is not a judgment about workmanship.