| Company | Location | Certifications | License # |
|---|---|---|---|
| Aaa City Plumbing Inc | Rock Hill, NC | Installer (Level II) | 5390 |
| Advanced Solutions Contractors Llc | Lyman, NC | Installer (Level II) | 14103 |
| Alternative Septic Services | Clover, NC | Installer (Level IV) | 9715 |
| Alternative Septic Services Llc | Lake Wylie, NC | Installer (Level IV) | 6821 |
| B & S Septic Service | Inman, NC | Installer (Level II) | 11197 |
| Borderline Ground Fx | Campobello, NC | Installer (Level IV)Inspector | 11104 |
| Bragg Waste Services | Boiling Springs, NC | Installer (Level II) | 14568 |
| Broken Roots Llc | Boiling Springs, NC | Installer (Level II) | 7156 |
| Bryan Taylor Septic | York, NC | Installer (Level II) | 9766 |
| Carroll Norman Construction Llc | Clover, NC | Installer (Level II) | 11177 |
| Century Excavations Llc | Chesnee, NC | Installer (Level II) | 9032 |
| Coulston Enterprise | Lancaster, NC | Installer (Level II) | 9749 |
| Daniel Ray Stilwell | Fort Mill, NC | Installer (Level II) | 11795 |
| Davis Premier Contractors | Pickens, NC | Installer (Level IV) | 12075 |
| Db Sewer & Drain Llc | North Wilkesbo, NC | Installer (Level II) | 14891 |
| Deming Family Tree Llc | Pickens, NC | Installer (Level II) | 14345 |
| Freeman Construction | Spartanburg, NC | Installer (Level II) | 15371 |
| Green Choice Excavation | Lancaster, NC | Installer (Level II) | 14000 |
| Griffin Construction And Development Inc | Chesnee, NC | Installer (Level II) | 15316 |
| Hugh R Simmons Septic Tank Services Llc | Spartanburg, NC | Installer (Level II) | 15331 |
| Indigo Plumbing | Travelers Rest, NC | Installer (Level II) | 15339 |
| Josh Rubins Plumbing Llc | Clover, NC | Installer (Level II) | 11106 |
| Kevin Schlieben | Hollywood, NC | Installer (Level II) | 15400 |
| Kevin Stevens | Clover, NC | Installer (Level II) | 15189 |
| Kg Landworx Llc | Fort Mill, NC | Installer (Level II) | 14615 |
| Littlejohn Landscapes Llc & Septic | Spartanburg, NC | Installer (Level II) | 15138 |
| Lutz Farms | Clover, NC | Installer (Level IV)Inspector | 6622 |
| Marksman Landworks Llc | Chesnee, NC | Installer (Level IV) | 9833 |
| Mcgill Land Management & Septic | Clover, NC | Installer (Level II) | 11559 |
| Moore Underground | York, NC | Installer (Level II)Inspector | 9953 |
| Morris Jenkins | Charlotte, NC | Installer (Level II) | 15297 |
| Powell'S Sanitation Inc | Loris, NC | Installer (Level IV)Inspector | 3752 |
| Presnell Land Works | Cowpens, NC | Installer (Level II) | 15251 |
| Rock Solid Earthworks Llc | Anderson, NC | Installer (Level II) | 15029 |
| Rock Solid Excavation Services Llc | Campobello, NC | Installer (Level II) | 9277 |
| Russell'S Excavation & Septic Tank Servi | York, NC | Installer (Level II) | 6313 |
| S & S Site Solutions Llc | Rock Hill, NC | Installer (Level IV) | 7220 |
| Salo Builders | Inman, NC | Installer (Level II) | 15186 |
| Sc Septic Llc | Greer, NC | Installer (Level II) | 9806 |
| Seay'S Septic And Excavation | Inman, NC | Installer (Level II) | 15489 |
| Shane'S Services Llc | Lockhart, NC | Installer (Level II) | 14962 |
| Sheppard'S Underground Contractors Inc | Bennettsville, NC | Installer (Level IV) | 11412 |
| Spangler Drain & Rooter | Gaffney, NC | Installer (Level II) | 11052 |
| Sunbelt Utilities Corp | Lancaster, NC | Installer (Level II) | 3671 |
| Tanks 4 Less | Florence, NC | Installer (Level IV) | 11888 |
| Terra Services Group | Greenville, NC | Installer (Level II) | 14992 |
| Thad Mccord | Greer, NC | Installer (Level II) | 14661 |
| Trinity Brothers Construction Llc | Landrum, NC | Installer (Level II) | 7293 |
| Twin Oak Construction | Greer, NC | Installer (Level II) | 15066 |
| Upstate Land And Septic Llc | Chesnee, NC | Installer (Level II) | 11491 |
| Victoria'S Irrigation Systems Llc | Wallace, NC | Installer (Level II) | 15291 |
| Waters Edge Contracting Llc | Clover, NC | Installer (Level II) | 14616 |
| Willie'S Grading & Septic | Rock Hill, NC | Installer (Level II) | 9919 |
| Xpert Plumbing Inc | Piedmont, NC | Installer (Level II) | 15220 |
| Ybls Land And Septic Services Llc | Chesnee, NC | Installer (Level II) | 11234 |
55 companies in the NCOWCICB certified onsite wastewater contractor & inspector lists are based in South Carolin County as of 2026-07-23. Companies based elsewhere in North Carolina also commonly serve the county.
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