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Septic Registry

Licensed septic companies in Harrington, Delaware

6 businesses on Delaware’s septic licensing records give an address in Harrington. Harrington is in Kent County, which has 39 in total.

5 licensed system contractors3 licensed system designers2 licensed systems inspectors

More licensed companies elsewhere in Kent County

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

Septic licensing in Harrington

How many licensed septic companies are there in Harrington?
6 businesses give Harrington as their address on Delaware's septic licensing records. That count is of businesses based in Harrington, not of everyone who will work there — a Delaware licence is valid across the state.
Do I have to use a company based in Harrington?
No. Licensing is statewide, so any licensed company can legally work in Harrington. Kent County has 39 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 Harrington 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 Kent County

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