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DBA Duvall Builders & GradingLicensed

Licensed septic contractor based in Seneca, Oconee County, SC

License details

License number37-367-37089
License typeLicensed Onsite Wastewater Installer - Tier 2
License statusIn Effect, on SC DES's OSWW licensed-contractor registry
Based inSeneca, Oconee County, South Carolina 29678

"Based in" is the city and county of the address on the business's license record.

What this license covers

  • Installation / repair: licensed to build and install septic tanks and drainfields, and to repair or replace failed ones.

How to verify this license

We publish the license details exactly as they appear in the public licensing records of the agency that issued the license; we do not vouch for the business itself. Before hiring, look up license #37-367-37089 directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.

Source: South Carolina DES - OSWW licensed-contractor registry, last checked 2026-10-03. Look it up at the issuing agency.

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