| Company | Location | Certifications | License # |
|---|---|---|---|
| A & K Farm And Landworks Inc | Rockingham, NC | Installer (Level II) | 9524 |
| A & M Contractors Inc | Ellerbe, NC | Installer (Level IV)Inspector | 2737 |
| Affordable Septic Tank Installation | Hamlet, NC | Installer (Level II) | 2584 |
| Bascom Hatcher Plumbing Inc | Rockingham, NC | Installer (Level II) | 4216 |
| Dennis Adam Griffin | Ellerbe, NC | Installer (Level IV)Inspector | 11166 |
| Dnd Plumbing Inc | Hamlet, NC | Installer (Level II) | 12058 |
| Pankey And Son Hauling | Rockingham, NC | Installer (Level II) | 2446 |
| Rfi Grading Services Llc | Ellerbe, NC | Installer (Level IV)Inspector | 7324 |
| Richardsons Thermal Control Ind Inc | Jackson Springs, NC | Installer (Level II) | 4794 |
| Rock'S Septic Cleaning | Rockingham, NC | Installer (Level II) | 9472 |
| Shortys Septic | Rockingham, NC | Installer (Level IV)Inspector | 4888 |
| Steen Town Farm | Hamlet, NC | Designer (Soil Evaluator) | 10018E |
| Wallace General Contracting Inc | Rockingham, NC | Installer (Level II) | 14150 |
13 companies in the NCOWCICB certified onsite wastewater contractor & inspector lists are based in Richmond County as of 2026-07-23. Companies based elsewhere in North Carolina also commonly serve the county.
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