Trenchless Sewer Repair Candidacy Checker — Lining, Bursting, or Dig?
Trenchless repair can save $2,000–$5,000 over excavation once surface restoration is counted — but not every sewer line qualifies. A collapsed or badly bellied pipe can't be lined, bursting needs a traceable path and two access pits, and over open lawn a plain dig is sometimes still the cheapest fix.
Answer a few questions about what's wrong with the pipe and how a crew could reach it. If nobody has run a camera yet, say so — the honest answer starts there.
How this works
The candidacy rules in this checker are the same ones trenchless crews apply on site. CIPP lining cures a new pipe inside the old one, so it requires a structurally intact host: cracks, root intrusion, and corrosion are fine, but a collapse blocks the liner and a belly or back-slope simply gets lined into place — the sag stays. Pipe bursting fractures the old pipe outward while pulling new HDPE through, so it tolerates far worse pipe but needs a traceable, not-fully-collapsed path and two access pits. When neither condition holds, or the line is shallow under open lawn where digging is cheap, open trench is the honest recommendation.
Cost figures come from 2026 pricing published by Angi, HomeGuide, and HomeAdvisor: CIPP lining $80–$250/LF ($125–$200 typical; full runs $6,500–$12,000), pipe bursting $60–$200/LF (some markets $150–$300; full jobs $8,000–$15,000), and open trench $50–$250/LF all-in plus restoration. Lining runs roughly 15–20% cheaper than bursting on the same footage, the cured liner is rated for about 50 years, and bursting's new HDPE for about 100. The headline savings claim — trenchless saving $2,000–$5,000 (30–50%) versus excavation — holds all-in, once the $1,500–$4,000 in surface restoration a trench requires is counted; per-foot alone, trenchless often costs more.
This quiz screens; it doesn't certify. Candidacy ultimately depends on what a camera finds — material, diameter, slope, and failure points — which is why two of the paths above end at "get a camera inspection" rather than a method. We connect you with independent local sewer and trenchless pros; we don't perform repairs ourselves.
Estimates only — independent local providers quote their own pricing. Data last reviewed 2026-07.
Frequently Asked Questions
What disqualifies a sewer line from trenchless repair?
For CIPP lining: a collapsed section, a significant belly (sag), or bad slope — the liner needs a structurally intact host pipe and can't fix geometry. For pipe bursting: a path that's fully collapsed or can't be traced, or no room for the two access pits. A camera inspection ($125–$500) is the only way to check any of these.
Is pipe lining or pipe bursting cheaper?
Lining, usually — about 15–20% less than bursting on the same run, and with a good cleanout it may need no digging at all. Lining runs $80–$250/LF ($125–$200 typical) versus bursting at $60–$200/LF but with two access pits and full jobs commonly $8,000–$15,000. Bursting earns its premium when the pipe is too deteriorated to line, and its new HDPE pipe is rated for roughly 100 years versus about 50 for a cured liner.
How much does trenchless sewer repair save versus digging?
Typically $2,000–$5,000 all-in — about 30–50% — but only where there's real restoration to avoid: driveways, patios, slabs, mature landscaping. Per foot, trenchless often costs more than trenching. Over open lawn with a shallow line, an open trench can genuinely be the cheaper option, which is why this checker sometimes recommends it.
Can a bellied sewer line be fixed with CIPP lining?
No. A liner takes the exact shape of the pipe it cures inside, so lining a belly produces a smooth-walled belly that still ponds waste. Bellied sections have to be re-laid at correct slope — by excavation, or in some cases pipe bursting can pull a new line through if the sag isn't severe. Anyone quoting a liner for a documented belly without addressing the slope deserves a second opinion.
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Use the free tool →Prefer to just talk to someone?
Call or send the short form — we'll route you to an independent local pro.