| Company | Location | Certifications | License # |
|---|---|---|---|
| Burnley Sewer & Drain LLC | — | InstallerPumper | — |
| Dorsey Construction | — | Installer | — |
| Dozier Plumbing & Electrical Inc. | — | Installer | — |
| Leon Wyatt Construction, Inc. | — | Installer | — |
| Newton Construction LLC | — | Installer | — |
| Usry's Septic Systems LLC | — | Installer | — |
| Williams Sewer & Drain Inc. | — | InstallerPumper | — |
7 companies in the Georgia DPH certified septic installer & approved pumper lists are based in McDuffie County as of 2026-07-23. Companies based elsewhere in Georgia also commonly serve the county.
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