| Company | Location | Certifications | License # |
|---|---|---|---|
| Darrell Crews Septic Tank Service 'Llc' | Sanderson, FL | Installer (Business Authorization) | SA0091655 |
| Dwight S. Jones Inc. | Glen St. Mary, FL | Installer (Business Authorization) | SA0930704 |
| Mike Crawford Inc | Glen St. Mary, FL | Installer (Business Authorization) | SA0111774 |
| Quality Septic Systems Llc | Glen Saint Mary, FL | Installer (Business Authorization) | SA0252289 |
| Terry D. Crews Septic Tank | Mac Clenny, FL | Installer (Exempt Business) | SE0930718 |
5 companies in the Florida DEP septic tank contractor registrations & business authorizations are based in Baker County as of 2026-07-23. Companies based elsewhere in Florida also commonly serve the county.
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