Last updated: July 7, 2026 ยท Prices reviewed quarterly
Sewer line replacement costs $50 to $250 per linear foot in 2026 (about $150/ft average) — roughly $2,000-$10,000 for a typical 40-foot run, and $15,000-$25,000+ for long, deep or under-slab lines. Before anyone digs, a $150-$500 camera inspection is the best money in plumbing.
The numbers
| Item | Typical 2026 cost |
|---|---|
| Camera inspection (do this first) | $150 – $500 |
| Per linear foot | $50 – $250 (avg ~$150) |
| Typical 40-ft replacement | $2,000 – $10,000 |
| Spot repair (one section) | $1,500 – $4,000 |
| Long / deep / under slab | $15,000 – $25,000+ |
Trenchless vs. open trench
Trenchless methods — pipe lining (a resin sleeve cured inside the old pipe) and pipe bursting (pulling new pipe through while fracturing the old) — cost similar per foot to excavation but save thousands in landscaping, driveways and patios you do not destroy and rebuild. They need structural integrity to work: collapsed lines still mean digging. Roots and offsets are trenchless-friendly; pancaked clay pipe is not.
Repair, line, or replace?
Camera first, always. One root intrusion or offset joint: spot repair plus maintenance. Multiple bellies/breaks in old clay or Orangeburg pipe: full lining or replacement beats serial $2,000 digs. Recurring backups without a camera diagnosis is how homeowners pay for three spot repairs that should have been one lining job.
Who pays: you, the city, or insurance?
You own the lateral from the house to the main in most cities — but SOME municipalities cover the portion under public streets; one call can save five figures. Standard homeowners insurance excludes sewer lines (wear/roots), though service-line endorsements ($30-$100/yr) cover exactly this — check if you bought one. Backup INTO the house is its own rider: coverage details — and cleanup costs live in our basement flooding guide.
Official resources & free help
- Before ANY digging: call 811 (free utility locating, required by law) — call811.com
- Check municipal responsibility: your city public works / sewer department
- Contractor licensing & permits: sewer work is permitted nearly everywhere
- Backup cleanup safety: CDC sewage cleanup guidance
FAQ
Roots keep coming back every year.
Annual augering ($200-$500) is a subscription; lining seals the joints roots enter and cancels it. Three years of rooting pays for much of a lining job.
The plumber quoted without a camera inspection.
Walk away. Nobody can scope sewer work honestly without seeing the pipe — and you deserve the footage on a USB drive.
How long does replacement take?
Trenchless: often 1-2 days. Open trench: 2-5 days plus surface restoration. Either way you will have service interruptions measured in hours, not days.
Prices on this page are researched estimates compiled from the cited sources; your local costs will vary with market, access and scope. Always get multiple written quotes from licensed professionals before hiring.