How Does Trenchless Drain Replacement Differ from Pipe Relining?
Both trenchless drain replacement and pipe relining avoid full-length excavation, but they address different levels of pipe failure. The comparison below clarifies when each method applies.
| Factor |
Trenchless Replacement (Pipe Bursting) |
Pipe Relining (CIPP) |
| Pipe Condition Required |
Collapsed, offset, or beyond lining threshold |
Cracked or root-intruded but structurally intact |
| New Material Installed |
Full new HDPE or PVC pipe |
Resin liner inside existing pipe |
| Host Pipe |
Fractured and displaced or pulled out |
Remains in place |
| Diameter Change |
Can upsize during replacement |
Slight reduction from liner thickness |
| Access Required |
Two pits at pipe ends only |
Existing access points (cleanouts, manholes) |
| Best For |
Failed, collapsed, or heavily offset pipe |
Structurally intact pipe with internal damage |
Not sure which method is right for your pipe? A drain camera inspection from Galaxy Plumbing Inc. provides the documented diagnosis to make that determination accurately.