Sewer line repair begins with a camera inspection of the full sewer line - not just the area where backups are occurring. The camera documents the pipe material, diameter, joint condition, and every defect from the cleanout to the end of the run. That footage is what determines whether the line is a repair candidate or whether the damage has progressed beyond what a targeted fix can address.
If the line qualifies for repair, the work is scoped to the damaged section. A spot repair replaces the failed portion of pipe - typically 2 to 6 feet - and reconnects it to the existing line on both sides using couplings matched to the pipe material and diameter. A section replacement covers a longer stretch when the damage spans more than a single joint or crack. In either case, the repair removes the structural defect and restores the line to full flow capacity at that location.
After the repair, the camera runs the line again to verify the work and document the condition of the untouched sections. That post-repair footage is as important as the repair itself - it gives the property owner a baseline for the rest of the line, so future decisions about maintenance or additional repair are based on documented pipe condition rather than assumptions.