35 Raymond Potter Lane, Exeter, RI 02822 · Washington County
Is Grenco Inc licensed?
Grenco Inc appears on a Rhode Island septic license or certification list. The Septic Guide matched these credentials to the issuing agency's published list as of October 2026; confirm the current status with the agency before you hire.
| Credential | Number | Issued by | Verify |
|---|---|---|---|
| Rhode Island DEM Licensed OWTS (Septic) Installer | L1614 | Rhode Island Department of Environmental Management | Agency lookup |
A matched credential shows the holder was on the agency's list when we checked. It does not by itself authorize every kind of septic work: an installer license, a pumper license and an inspector certification are different credentials.
What septic services does Grenco Inc offer?
Found on Grenco Inc's website: Septic system installation, Septic repair, Drain field repair.
Ask Grenco Inc to confirm it handles your specific job and service area. Guides: Septic system installation · Septic repair · Drain field repair.
Before you hire Grenco Inc
- Check the license on the agency lookup above and ask which person holds it.
- Ask who pulls the permit and whether the fee is in the quote.
- Ask for proof of liability insurance sent by the insurer.
- Get the scope and price in writing. How to check a septic license.
Is this your business? Correct or update this listing. Listing data: state license lists and public business information, as of October 2026. Not an endorsement.