| Company | Location | Certifications | License # |
|---|---|---|---|
| Cloud Construction Inc | — | Installer | — |
| DeLaigle Contracting, Inc. | — | Installer | — |
| Dirt Diligence, LLC | — | Installer | — |
| East Georgia Siteworks, LLC | — | Installer | — |
| Jones Construction | — | Installer | — |
| Jones Drainage and Septic Solutions | — | Installer | — |
| Larry Norris Construction, Inc. | — | Installer | — |
| Mobley Plumbing and Septic LLC | — | Installer | — |
| Murphey Brothers Construction Co., Inc | — | Installer | — |
| Precision Land Prep | — | Installer | — |
| Royal Restrooms of Georgia | — | Pumper | — |
| Southeastern Septic and Clearing | — | Installer | — |
| The Drain Surgeon | — | Installer | — |
| Wheeler Plumbing LLC | — | Installer | — |
14 companies in the Georgia DPH certified septic installer & approved pumper lists are based in Columbia County as of 2026-07-23. Companies based elsewhere in Georgia also commonly serve the county.
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