Sewer pipe lining is a process used for repairing and replacing cracked, leaking, backed up and damaged sewer lines. Using a “no dig” trenchless process to avoid yard excavation, sidewalk destruction or digging up trees, sewer lining involves inserting new epoxy-saturated pipe tubing into existing pipes, inflating the tubing and curing it into place with hot air, steam or blue light LED technology. This results in a new seal lining the walls of existing pipes, replacing broken piping with the potential to last for decades