Built from public records. No company paid to be listed. Every check names its source and the date it was read.
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Septic companies in Los Angeles County, California

112 septic companies on record across Los Angeles County, built from public data.

Companies
112
Cities covered
51

Septic Permits in Los Angeles County

Los Angeles County Department of Public Health, Environmental Health (Onsite Wastewater Treatment Program) opens in a new tab

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.

See who regulates septic systems in California

Every company on record in Los Angeles 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.

The license check in California

California publishes a roster we can check a company against, and we have not run it against these 112 companies yet, so every license on this page currently reads as unverified. That is our backlog and not their standing.

Cities in Los Angeles County

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.