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Septic Registry

Licensed septic companies in Delaware City, Delaware

1 business on Delaware’s septic licensing records gives an address in Delaware City. Delaware City is in New Castle County, which has 38 in total.

More licensed companies elsewhere in New Castle County

A Delaware licence is valid statewide. These are based in the same county but a different town, and can legally work in Delaware City.

Septic licensing in Delaware City

How many licensed septic companies are there in Delaware City?
1 business gives Delaware City as their address on Delaware's septic licensing records. That count is of businesses based in Delaware City, not of everyone who will work there — a Delaware licence is valid across the state.
Do I have to use a company based in Delaware City?
No. Licensing is statewide, so any licensed company can legally work in Delaware City. New Castle County has 38 in total, and companies in neighbouring counties can travel too. Being local usually matters for call-out speed and price, not permission.
How do I check a Delaware City septic company is really licensed?
Every listing here names the record it came from and the date that record was published. To confirm it is still current, check with DNREC, or the state's own licensee dataset.

Other towns in New Castle County

Records as published August 26, 2026. Report a correction.