The answer to 'how does sewer repair work' is that sewer repair involves identifying and fixing issues with the underground pipes that carry waste and wastewater from your home to the municipal sewer system. This can involve repairing cracks, leaks, or blockages in the sewer line, replacing damaged sections of pipe, or clearing tree roots that have infiltrated the pipes.
Sewer repair typically starts with a professional plumber using a sewer camera to inspect the pipes and identify the problem. They may then use trenchless repair methods like pipe relining or pipe bursting to fix the issue without digging up your entire yard. If the damage is more extensive, they may need to excavate and replace sections of the sewer line.