Main Sewer Line Repair in Salt Lake City, UT

Your main sewer line is the single pipe that carries all wastewater from your home to the city sewer connection at the street. In Northern Utah, these lines are typically 4-inch clay, cast iron, or Orangeburg pipe in homes built before 1980, and PVC in newer construction. The Wasatch Front's heavy clay soil expands and contracts with seasonal moisture changes, putting constant lateral pressure on buried pipes — especially at joints where two pipe sections meet.

Root intrusion is the number-one cause of main sewer line failures we see in Murray, Sandy, and the Salt Lake Valley. Mature cottonwoods, willows, and silver maples send aggressive root systems toward sewer lines because they're a reliable moisture source. A single hairline crack at a pipe joint is enough for roots to enter, and once inside, they grow until the line is restricted or completely blocked.

We start every main sewer line repair with a camera inspection — no guesswork, no unnecessary digging. You see the footage on screen with us, and we explain exactly what's happening and which repair method makes sense for your specific situation.

Not every sewer problem requires replacing the entire line. If the camera shows damage isolated to one section — a root ball at a single joint, a localized crack, or an offset at one connection — a spot repair addresses the problem without touching the rest of the pipe. We excavate only the damaged section (typically 4–8 feet), cut out the bad pipe, and replace it with new PVC. For damage that spans a longer section or involves multiple problem areas, we'll recommend either trenchless lining or a full excavation and replacement depending on conditions.