Derek Harness Construction
Verified against state license roster · 2026-08-24
- Phone
- 615-289-9061
- Address
- not on file
- Website
- none
- State permit
- #12391 (Installer)
- System types
- Conventional
Services
- Septic Installation
- Septic System Repair
Counties this operator lists
A Tennessee installer permit is valid statewide, so this is not a limit on where they may work — it is the counties this operator told the state it works in. Williamson is one of nine contract counties that require their own additional county permit on top of the state one.