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 Suffolk County, New York

146 septic companies on record across Suffolk County, built from public data.

Companies
146
Cities covered
58

Septic Permits in Suffolk County

Suffolk County Department of Health Services, Office of Wastewater Management opens in a new tab

New York sets the standard at state level and approves the system locally. The Department of Health writes Appendix 75-A, which every residential system has to meet, and a health department approves the design. Which health department depends on whether your county runs one of its own.

See who regulates septic systems in New York

Every company on record in Suffolk 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 New York

New York publishes a roster we can check a company against, and we have not run it against these 146 companies yet, so every license on this page currently reads as unverified. That is our backlog and not their standing.

Cities in Suffolk 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.