| Method | Invasiveness | Cost | Longevity | Best Use Case | | :--- | :--- | :--- | :--- | :--- | | | None | Low | Short-term | Soft blockages (FOG/Hair) | | Jetting | None | Medium | Medium-term | Maintenance/Scale removal | | Excavation | High | High | Long-term (50+ years) | Collapsed pipes, major misalignment | | CIPP Lining | Low | Medium-High | Long-term (50+ years) | Cracks, root intrusion, leaks |