| Company | Location | Certifications | License # |
|---|---|---|---|
| Blount & Sons Septic Service Llc | Greenville, FL | Installer (Business Authorization) | SA0232173 |
| Blount'S Septic Tank Inc. | Greenville, FL | Installer (Business Authorization) | SA0071466 |
| Charles A. Wells Jr. Septic Service | Madison, FL | Installer (Exempt Business) | SE0081553 |
| John G. Walker Septic Pumping Service | Pinetta, FL | Installer (Exempt Business) | SE0041208 |
| Lester D. Plain & Son Llc | Madison, FL | Installer (Business Authorization) | SA0232171 |
5 companies in the Florida DEP septic tank contractor registrations & business authorizations are based in Madison County as of 2026-07-23. Companies based elsewhere in Florida also commonly serve the county.
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