How much does trenchless sewer line replacement cost?
Trenchless sewer line replacement costs $60 to $250 per linear foot on Angi's published range, covering both pipe bursting and pipe lining.
As a whole project, Angi publishes $1,900 to $6,000 with an average of $2,900, and says residential sewer lines average 50 to 75 feet. The word trenchless covers two different technologies at two different price points, and knowing which one is on your quote is most of understanding it.
Source: Angi
This page is general information, not professional advice. Prices move with your home, your region and the season, and the only number that counts is a written quote from a licensed plumber who has looked at the job.
Pipe bursting cost
Pipe bursting pulls a new pipe through the old one, fracturing the old pipe outward as it goes. HomeGuide prices it at $60 to $200 per linear foot; Angi reads bursting with lining at $150 to $190. It needs only an entry pit and an exit pit, which is the whole appeal — the yard, the driveway and the landscaping above the run stay where they are.
CIPP pipe lining cost
Cured-in-place pipe lining inflates a resin-soaked liner inside the damaged pipe and hardens it into a new pipe within the old one. HomeGuide prices CIPP at $90 to $250 per linear foot, and Angi publishes sewer pipe lining at $135 to $150. Lining is the option when the old pipe is cracked or root-invaded but still structurally holding its shape.
Higher per foot, lower total — that is the trenchless trade. You pay for the technology instead of paying to dig up and rebuild everything above the pipe.
When trenchless cannot be used
Angi is direct about the limits: trenchless methods are not suitable for pipes with major problems such as collapse or improper sloping, which still require traditional excavation. A liner cannot pass through a collapsed section, and no trenchless method can fix a pipe laid at the wrong grade. The camera inspection — $175 to $350 on Angi's trenchless figures — is what settles whether your line qualifies.
Source: Angi
Budget for the paperwork too. Angi says a permit for a trenchless sewer project can cost up to $1,000 depending on where you live, which is a wider band than ordinary plumbing permits and worth confirming with your city before comparing quotes.
Source: Angi
For the open-trench numbers this method is competing against, length tables included: what sewer line replacement costs.
Not every plumber runs bursting or lining equipment, so getting a trenchless quote usually means asking for one. These are the plumbers AI assistants actually name when homeowners ask. Nobody can pay to be on these lists.
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Questions people ask next
- What is trenchless sewer line replacement?
- Replacing or rebuilding a buried sewer pipe without digging a trench along its whole length. The two main methods are pipe bursting, which pulls a new pipe through the old one, and CIPP lining, which cures a new pipe inside the old one. Both work from small access pits instead of an open trench.
- Is trenchless sewer replacement cheaper than digging?
- Per foot, usually not — Angi's trenchless band of $60 to $250 overlaps the top of the open-trench range. On the total it often wins anyway, because Angi prices excavation at $50 to $200 per foot and concrete slab sections at $300 to $350 per foot on a dig job, and trenchless skips most of that restoration.
- How long does trenchless sewer replacement last?
- Ask the contractor what warranty comes with the specific liner or pipe being installed, in writing. Published cost guides price the methods but do not publish measured lifespans for them, and the honest answer lives in the product warranty rather than a blog's round number.
- How long does a trenchless sewer job take?
- HomeGuide says sewer replacements run 1 to 5 days and that trenchless jobs take less time than trenching, since the digging is limited to access pits.
Written for homeowners by Most Recommended Plumbers, which measures which plumbers AI assistants actually recommend in 26 U.S. metros. Nobody can pay to be on those lists. How we measure.