| Company | Location | Certifications | License # |
|---|---|---|---|
| 501 Union St Nashville, Tn | — | Installer | 14348 |
| B&T Landscaping, Inc. | Goodlettsvlle, TN | Installer (Type C) | 17867 |
| Boone Creek Plumbing | Fairview, TN | Installer (Type C) | 18271 |
| Coolray Of Tennessee, Llc | Nashville, TN | Installer (Type C) | 18174 |
| Evolution Maintenance Inc | Portland, TN | Installer (Type C) | 13456 |
| FusionSite Services | Nashville, TN | Pumper | 485 |
| Hornbuckle Plumbing Company New Installations, Inc. | Nashville, TN | Installer (Type C) | 5129 |
| J & J Services, Inc. | Nashville, TN | Pumper | 553 |
| Jv plumbing llc | Nashville, TN | Installer (Type C) | 17974 |
| Kemper Construction | Antioch, TN | Installer (Type C) | 5100 |
| Kiyona Brown | Nashville, TN | Installer (Type C) | 17967 |
| L&R Utilities & Grading Llc | Nashville, TN | Installer (Type C) | 14006 |
| Lakeshore Recycling Systems | Nashville, TN | Pumper | 942 |
| M J Frick Co., Inc. | Nashville, TN | Installer (Type C) | 12630 |
| Merryman-Farr Mechanical | Nashville, TN | Installer (Type C) | 18139 |
| Powerhouse Plumbing, Inc. | — | Installer (Type C) | 18138 |
| Precision Plumbing Company, Inc. | Whites Creek, TN | Installer (Type C) | 5223 |
| Travis Smith | Nashville, TN | Installer (Type C) | 17923 |
18 companies in the TDEC active septic system installers & pumpers lists are based in Davidson County as of 2026-07-23. Companies based elsewhere in Tennessee also commonly serve the county.
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