When the problem is the pipe's slope, not just its condition, the line has to come out of the ground.
A belly is a section of pipe that has sagged below its intended line, usually from soil settling unevenly underneath it, creating a low spot where water and solids pool instead of continuing on toward the main. An offset joint is different — two sections that were once aligned have shifted, often from root pressure, ground movement, or a joint that failed, leaving a lip or a gap that catches paper and debris even after a cleaning. Both cause repeat backups regardless of how often the line is cut clear, because the cause is the shape of the pipe run itself, not what is currently sitting inside it.
Open-cut replacement means excavating a trench along the affected section, or the full run if enough of it is compromised, removing the old pipe, and laying new pipe at a corrected, verified slope with proper bedding before backfilling. It is more disruptive than trenchless work — landscaping, a section of driveway or hardscape over the line does not survive a trench undisturbed — but it is the only method that actually corrects grade rather than replacing the same shape in new material. Where a camera shows a belly, a major offset, or a fully collapsed section, replacement is what actually resolves it, and that gets said plainly rather than selling a lining that will not hold.
Tell us what the drains are doing and we will match you with a contractor who diagnoses before recommending a repair.
Get Matched With a Sewer ContractorTell us which fixtures are affected and how often — we will follow up to size the visit and get a camera on the line.