Pipe Bursting Sewer Replacement
Pipe bursting replaces a sewer line by pulling a cone-shaped bursting head through the old pipe, fracturing it outward while towing a brand-new pipe into place behind it. It needs only small entry and exit pits instead of an open trench. FlowFast connects you with an independent local plumber who can determine whether your line is a bursting candidate.
- Connected with an independent local pro — never a call center queue.
- Part of our Sewer Line Repair & Replacement services — explained up front.
Parent service
Sewer Line Repair & ReplacementSewer line problems? Trenchless vs. traditional replacement, warning signs, and how to get connected with an independent local plumber for sewer work.
View all Sewer Lines servicesPipe bursting is the trenchless answer when the old pipe is too far gone to line but the line's path is still viable. A steel cable is threaded through the damaged pipe, attached to a bursting head slightly larger than the old pipe, with the new pipe — usually HDPE — trailing behind. A powerful puller draws the assembly through: the head shatters clay, cast iron, or concrete pipe outward into the surrounding soil while the new seamless pipe slides into the exact same path. Because the new pipe follows the old alignment, grade and slope are preserved.
Bursting handles upsizing too — the new pipe can be a diameter larger than the old one, which lining cannot do. But it needs a clear path: a fully collapsed section with no opening for the cable, or nearby utilities too close to the burst zone, can rule it out. Soil conditions and depth matter as well. FlowFast Plumbing is a referral service — we connect you with an independent local plumber who can camera your line, check clearances, and tell you honestly whether pipe bursting fits your situation.
Warning signs
Signs you need this service
- A camera inspection showed a badly cracked, corroded, or root-destroyed line that lining cannot salvage but whose path is intact.
- You want a brand-new, seamless pipe — not a liner inside old pipe — without excavating the full trench.
- The existing line is undersized for the household, and bursting offers a chance to upsize diameter in the same alignment.
- Previous spot repairs keep failing along the same run, signaling the whole pipe has reached the end of its life.
What to expect
The process, step by step
The pro cameras the line and checks depth, soil, and nearby utilities to confirm bursting is safe and viable.
Permits are secured, utilities are marked, and small entry and exit pits are excavated at the ends of the run.
A cable is threaded through the old pipe, and the bursting head pulls the new pipe into place, fracturing the old pipe outward.
Connections are made at both ends, the line is camera-verified and tested, then pits are backfilled and compacted.
Prevention
How to avoid this problem
- Keep the new line's path clear of deep-rooted plantings — even new pipe benefits from root-free soil around it.
- Do not build structures or pour concrete over the line's path without knowing exactly where it runs.
- Flush responsibly: no wipes, grease, or harsh chemicals that shorten any pipe's service life.
Frequently asked questions
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Other sewer line repair & replacement jobs homeowners ask about.
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