| Company | Location | Certifications | License # |
|---|---|---|---|
| Bass Services | Hertford, NC | Installer (Level IV)Inspector | 6905 |
| Brown'S Land Developing Inc | Winfall, NC | Installer (Level IV) | 1328 |
| Cornerstone Of Carolina Llc | Hertford, NC | Installer (Level IV) | 13032 |
| Four C Foundations Inc | Hertford, NC | Installer (Level II) | 7064 |
| H & S Landscaping And Grading | Hertford, NC | Installer (Level II) | 6327 |
| Hurdle Enterprises | Hertford, NC | Installer (Level IV) | 3059 |
| Perquimans Tile & Drain | Tyner, NC | Installer (Level IV) | 5269 |
| Swinney Septic Service Llc | Edenton, NC | Installer (Level IV)Inspector | 2568 |
| T A Stokely Pllc | Hartford, NC | Inspector | 4175I |
| Whitehurst Sand Company | Hertford, NC | Installer (Level IV) | 11883 |
10 companies in the NCOWCICB certified onsite wastewater contractor & inspector lists are based in Perquimans County as of 2026-07-23. Companies based elsewhere in North Carolina also commonly serve the county.
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