Pipe Bursting

Pipe bursting is a trenchless replacement method used when the existing sewer lateral or water service line is too damaged for CIPP lining. A conical bursting head with a new HDPE (high-density polyethylene) pipe attached behind it is pulled through the old pipe by a hydraulic winch. The bursting head fragments the old pipe outward into the surrounding soil while the new pipe takes its place.

Why pipe bursting: handles fully collapsed or severely deteriorated pipes that CIPP cannot fix. Single-size or upsizing replacement (you can install a larger-diameter pipe than the original). Two small entry/exit pits required (typically 4×6 ft each), but no full trench across the lawn.

Limits: requires soil conditions that allow the fragmented pipe to be pushed outward. Doesn't work well under streets with reinforced concrete or in extremely tight urban settings. Not suitable for pipes that share trenches with other utilities (gas, water, telecom) without careful planning.

Cost: $5,500–$13,500 for a residential lateral, depending on length, soil conditions, and city restoration requirements (sidewalk, curb).