| Company | Location | Certifications | License # |
|---|---|---|---|
| 4k Land Clearing & Grading Llc | Lancaster, SC | Installer (Tier 2) | 29-367-29106 |
| Barry'S Septic Services | Lancaster, SC | Pumper | 29-368-29015 |
| Blackmon Backhoe | Heath Springs, SC | Installer (Tier 2) | 29-367-29105 |
| Carolina Flow Pros Septic Services | Rock Hill, SC | Installer (Tier 2) | OSWWI0675 |
| Carolina Flow Pros Septic Services Llc | Rock Hill, SC | Pumper | OSWWP0097 |
| Carter Quality Plumbing | Lancaster, SC | Installer (Tier 2) | 46-367-46261 |
| Cedric Mingo | Lancaster, SC | Installer (Tier 2) | 29-367-29052 |
| Cmc Dirtworks | Lancaster, SC | Pumper | OSWWP0031 |
| Daniel Witmore | Kershaw, SC | Installer (Tier 1) | OSWWI0221 |
| Ditchin, Llc | Lancaster, SC | Installer (Tier 2) | 29-367-29103 |
| Howard'S Plumbing And Repair Llc | Lancaster, SC | Installer (Tier 2) | OSWWI0551 |
| Howard'S Plumbing And Repair Llc | Lancaster, SC | Pumper | OSWWP0126 |
| Howard'S Septic Svce & Plbg Repair | Lancaster, SC | Installer (Tier 2) | OSWWI0548 |
| Howard'S Septic Svce & Plbg Repair | Lancaster, SC | Pumper | OSWWP0115 |
| Hudson Construction | Kershaw, SC | Installer (Tier 2) | 29-367-29039 |
| Johnson Septic Service Llc | Lancaster, SC | Pumper | OSWWP0064 |
| Justin Gates | Heath Springs, SC | Installer (Tier 2) | 29-367-29107 |
| Keaton Land Services | Lancaster, SC | Installer (Tier 2) | OSWWI0727 |
| L & L Land Clearing & Septic Tank Service Llc | Heath Springs, SC | Pumper | OSWWP0085 |
| L & L Land Clearing Llc | Heath Springs, SC | Installer (Tier 2) | 29-367-29108 |
| Louis Mingo & Sons S/T Svc | Lancaster, SC | Installer (Tier 2) | 29-367-29087 |
| Palmetto & Sons, Inc. | Lancaster, SC | Installer (Tier 2) | 29-367-29101 |
| Poo-Wee Septic Services Llc | Lancaster, SC | Pumper | OSWWP0017 |
| R A Harrelson Utilities | Kershaw, SC | Installer (Tier 2) | 29-367-29100 |
| Raymond Gainer & Sons Construc | Lancaster, SC | Installer (Tier 2) | 29-367-29011 |
| Raymond Gainer And Sons | Lancaster, SC | Installer (Tier 2) | OSWWI0796 |
| Rick'S Tractor Works | Lancaster, SC | Installer (Tier 2) | 29-367-29030 |
| Total Plumbing & Septic Pumping | Lancaster, SC | Pumper | OSWWP0125 |
| Xtreme Clean Portable Restrooms Llc | Lancaster, SC | Pumper | OSWWP0144 |
29 companies in the SCDES on-site wastewater (OSWW) contractor registry are based in Lancaster County as of 2026-07-23. Companies based elsewhere in South Carolina also commonly serve the county.
Tell us what you need — we'll connect you with state-certified companies serving your area. No obligation.