| Company | Location | Certifications | License # |
|---|---|---|---|
| 3 R Of Charleston Inc | Goose Creek, SC | Pumper | 08-368-08005 |
| A-1 Septic Tank Service | Jamestown, SC | Pumper | 22-368-22009 |
| Ace Excavating Llc | Summerville, SC | Installer (Tier 2) | OSWWI0630 |
| Alpha Wastewater Solutions | Jamestown, SC | Installer (Tier 2) | OSWWI0263 |
| Boris Landscapes Llc | Huger, SC | Installer (Tier 2) | 08-367-08129 |
| Carter’S Septic And Sitework | Summerville, SC | Installer (Tier 2) | OSWWI0269 |
| Charleston Restroom Trailers Llc | Huger, SC | Pumper | OSWWP0067 |
| Classy And Clean Environmental Services | Ladson, SC | Pumper | OSWWP0062 |
| Danny Helton Inc. Dba A1 Septi | Jamestown, SC | Installer (Tier 2) | 22-367-22028 |
| Dew Services Inc | Cordesville, SC | Installer (Tier 2) | 08-367-08107 |
| Edgewater Residential Services | Pineville, SC | Installer (Tier 2) | 08-367-08127 |
| Envirosmart, Llc | Moncks Corner, SC | Pumper | 10-368-10045 |
| Franklin Moore | Cross, SC | Installer (Tier 2) | OSWWI0017 |
| Goodsell Transport | Goose Creek, SC | Pumper | 08-368-08107 |
| Hill'S Produce | Ridgeville, SC | Installer (Tier 2) | 08-367-08054 |
| J.M. Howard Construction | Cross, SC | Installer (Tier 2) | 08-367-08123 |
| Jake B Owens | Bonneau, SC | Installer (Tier 2) | OSWWI0307 |
| James W. Bilton Iv | Bonneau, SC | Installer (Tier 2) | OSWWI0058 |
| Jb Miles Construction | Cross, SC | Installer (Tier 2) | OSWWI0685 |
| Johns Hauling | Bonneau, SC | Installer (Tier 2) | OSWWI0416 |
| Mitchum And Sons | Bonneau, SC | Installer (Tier 2) | 08-367-08024 |
| Mitchums Construction | Summerville, SC | Installer (Tier 2) | 08-367-08133 |
| Moran Environmental Recovery | Hanahan, SC | Pumper | OSWWP0140 |
| Palmetto Site Solutions Llc | Moncks Corner, SC | Pumper | 08-368-08109 |
| Peace Septic Tank Co | Moncks Corner, SC | Installer (Tier 2) | 08-367-08063 |
| R C J Construction | Moncks Corner, SC | Installer (Tier 2) | 08-367-08079 |
| Rad Builders | Bonneau, SC | Installer (Tier 2) | OSWWI0486 |
| Rollins Landscape Llc | Moncks Corner, SC | Installer (Tier 2) | OSWWI0145 |
| Sanders Septic Co | Summerville, SC | Installer (Tier 2) | 38-367-38143 |
| Scottie Craven | Moncks Corner, SC | Installer (Tier 2) | 08-367-08136 |
| Smalls Construction & Trucking | Huger, SC | Installer (Tier 2) | 08-367-08135 |
| Thompson Construction Co Llc | Saint Stephen, SC | Installer (Tier 2) | 08-367-08049 |
| Timco | Moncks Corner, SC | Installer (Tier 2) | 08-367-08091 |
| Trash Gurl | Moncks Corner, SC | Pumper | 08-368-08104 |
| Travis Pask | Jamestown, SC | Installer (Tier 2) | 10-367-10120 |
| Vaanra Llc | Summerville, SC | Installer (Tier 2) | OSWWI0826 |
| Vladimir Iyerusalimets | Moncks Corner, SC | Installer (Tier 2) | OSWWI0720 |
| W.E. Davis Construction Co | Moncks Corner, SC | Installer (Tier 2) | 08-367-08131 |
| Walter L Brown Ii | Moncks Corner, SC | Installer (Tier 2) | 08-367-08066 |
| Whitten Septic Tank Service Llc | Cross, SC | Pumper | 08-368-08108 |
| Wlo Septic Tank Llc | Summerville, SC | Installer (Tier 2) | OSWWI0279 |
41 companies in the SCDES on-site wastewater (OSWW) contractor registry are based in Berkeley County as of 2026-07-23. Companies based elsewhere in South Carolina also commonly serve the county.
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