Should you repair or replace your sewer line?
Updated August 2026
← Every repair-or-replace call
Scope the line before deciding anything: one break or a root intrusion is a spot repair at $1,500–5,000, while a bellied, collapsed, or Orangeburg line means replacing the whole run for $5,000–15,000 and up. A camera inspection costs $150–300 and is the only thing that tells those situations apart from inside the house. Depth, length, and what sits on top set the price, since 40 feet under a lawn is a different job from 80 feet under a driveway. Trenchless methods, meaning lining and pipe bursting, skip most of the digging and usually win once surface restoration is counted.
The short version
Nobody should be quoted a sewer job without a camera in the pipe first. A scope separates the three outcomes that look identical from the cleanout: roots at one joint, a broken section, or a line that has lost its grade. Roots and a single break are repairs, handled with hydro-jetting plus a spot dig or a cured-in-place liner for $1,500–5,000. A belly, a collapse, or Orangeburg pipe means the run itself is finished, and patching one spot only moves the next backup a few feet down the line. Material and age carry more weight than symptoms here. Clay joints separate and admit roots, cast iron scales shut from the inside, and Orangeburg, the bituminous fiber pipe laid roughly between 1945 and 1972, deforms into an oval and fails along its length.
Your situation, decided
| Situation | Verdict | Why |
|---|---|---|
| One root intrusion, pipe otherwise round on camera | Repair | Hydro-jet plus a spot fix or liner, $1,500–5,000 |
| Single crack or offset joint under the lawn | Repair | A short dig and a new section beats replacing the run |
| Belly holding standing water on the scope | Replace that run | The grade is wrong; cleaning never corrects a low spot |
| Orangeburg or old clay with backups every few months | Replace | The pipe material is failing along its whole length |
| Collapsed pipe, no flow at all | Replace | Nothing left to line or patch; excavate or pipe burst |
| Backups only after heavy rain | Diagnose first | Often roots or a downspout tied into the lateral |
What each path costs
Repairs typically run $1,500–5,000; a replacement is $5,000–15,000 installed. Clay and cast iron sewer lines run 50–75 years and PVC 75–100, while Orangeburg often fails inside 30. Material and age, not symptoms alone, decide between a spot fix and a full run. Price your own number on the home maintenance cost calculator before you commit either way.
The repair-or-replace call is easy when you know the unit's age and service history. OnOtto keeps both, plus the maintenance that delays this decision for years.
Start your home's service log, freeFrequently asked questions
Is a $150 to $300 sewer camera inspection worth it?
It is the only honest way to price the job. A scope shows whether you have one root ball at a joint, a crushed 6-inch section of clay, or a belly holding water for 20 feet, and those three answers differ by more than $10,000. Ask for the video file plus footage marks and depth at the defect, so a second contractor can bid the same work. Run one before buying any house built before 1980 or with mature trees over the lateral, then put a rescope on a schedule.
Who is responsible for the sewer lateral, me or the city?
You are, in most US municipalities, from the house to the connection at the main, and in many cities that includes the length under the street and sidewalk. The utility owns only the main. This is why a lateral failure arrives as a $5,000–15,000 homeowner bill rather than a public works project, and why standard homeowners policies rarely cover the pipe itself. Some cities and utilities sell lateral coverage for $5–15 a month. Read the local ordinance before you need it.
Does trenchless lining last as long as replacing the pipe?
Close enough for most homes. A cured-in-place liner is a resin sleeve hardened inside the old pipe, and manufacturers rate them near 50 years, against 75 to 100 for new PVC. Lining costs roughly what open trenching does per foot but skips the driveway, patio, and landscaping restoration, which is where digging turns expensive. Two conditions rule it out: a collapsed pipe leaves no path for the liner, and a belly stays a belly, since lining preserves the existing grade rather than correcting it.
How do I keep roots out of the line after a repair?
Assume they return, then stay ahead of them. Roots find any joint that weeps, so schedule jetting or cutting every 18 to 24 months on a lot with big trees, and follow with a foaming root treatment where local rules allow it. Keep willows, poplars, and silver maples away from the run when planting. Grease and wipes are the other half of the problem, because they snag on root hairs and build the clog. The line checklist sets the cadence.