Superior Underground

Is Superior Underground licensed?

We have not matched Superior Underground to a Oregon septic license list. Ask Superior Underground for its license number and check it with the Oregon DEQ, Sewage Disposal Service licensing.

What septic services does Superior Underground offer?

Found on Superior Underground's website: Septic system installation, Septic inspection, Septic repair.

Ask Superior Underground to confirm it handles your specific job and service area. Guides: Septic system installation · Septic inspection · Septic repair.

Before you hire Superior Underground

• 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.