The Challenge
The property's sewer line was failing, and the root cause sat in the worst possible spot: an offset joint where a PVC section met an older cast iron section, directly beneath an expensive marble patio. A prior plumber had already worked the problem, fixing one pipe, but missed the actual root cause, so the trouble continued.
Excavating to reach an offset joint under a marble patio would have meant tearing out and rebuilding the hardscape - exactly the kind of collateral damage that turns a sewer repair into a five-figure restoration project.
Our Solution - Trenchless CIPP
Rather than dig, Prodigy diagnosed and restored the line from the inside. A CCTV sewer camera inspection located the offset joint and confirmed the real root cause the previous plumber had missed. After hydro jetting to clean and prep the pipe, the team installed a CIPP (cured-in-place) liner, creating a new, jointless pipe inside the failing one, with the marble patio never touched.
Step by Step
- CCTV Sewer Camera Inspection to Find and Confirm the True Root Cause
The offset PVC-to-cast-iron joint the prior plumber missed.
- Hydro Jetting
Hydro jetting to clean and prepare the host pipe for a sound liner bond.
- CIPP Relining Installed Through Existing Access
A new jointless pipe formed inside the old line.
- Cure
Cure and verification, restoring full flow with the marble patio completely undisturbed.
The Results
Completed in approximately 3 hours.
Zero excavation - the expensive marble patio was left completely untouched.
Root cause fixed (the offset joint), not just a symptom like the prior plumber's partial repair.
Estimated $16,500-$28,000 saved compared with traditional excavation and patio rebuild.
5-star review from the property owner.
Traditional Excavation Vs. Trenchless CIPP - This Project
| Field | Detail |
|---|---|
| Client | Adam Dassau - property owner (rental property) |
| Location | The Gulch, Nashville, TN |
| Service | Trenchless CIPP pipe lining (after CCTV inspection + hydro jetting) |
| Timeline | Completed in approximately 3 hours |
| Challenge | Failing sewer; offset joint where PVC met cast iron, directly beneath an expensive marble patio |
| Result | Line restored with zero excavation; marble patio untouched; estimated $16,500-$28,000 saved vs. excavation |
“ They found the real problem another plumber had missed, fixed it without touching our marble patio, and were done in a few hours. — Adam Dassau, property owner (5-star review)