Sewer line replacement puts in a new pipe when the old one is past repair. That means a line that has collapsed, lost its slope, deteriorated along its whole length, or failed at the connection to the city main. When a spot repair or a liner would only postpone the next failure, replacement is the fix that lasts.
When replacement is the right answer
- The camera shows a collapse, a crushed section, or multiple bad offsets in one run
- The line has a belly, a sag that holds water. A liner follows that sag; only re-grading fixes it.
- The pipe is Orangeburg that is deforming, which cannot be lined or spot-repaired reliably
- The failure is at the tap to the municipal main and the connection has to be rebuilt
- The line has been repaired repeatedly and is still failing
Two ways to replace a line
Open-trench. The crew excavates along the pipe, removes the old line, lays new PVC on a compacted stone bed at the correct slope, and backfills. This is the method when the line needs re-grading, when it has collapsed over a long stretch, or when the run is short and crosses open lawn.
Trenchless (pipe bursting). A bursting head pulls a new HDPE pipe through the path of the old one from two access pits, breaking the old pipe outward. This keeps a driveway, trees, or a patio intact. It works when the slope is acceptable and there is access at both ends. See trenchless sewer repair.
What sewer line replacement costs in Livingston County
2026 planning ranges for the Howell area, not quotes. Our sewer line replacement cost guide breaks these down per foot and by scenario.
| Scenario | Typical range |
|---|---|
| Short run, open lawn, normal depth (up to ~40 ft) | 4,500 to 9,000 dollars |
| Full lateral, open-trench, longer or deeper | 9,000 to 18,000 dollars |
| Pipe bursting a full lateral | 8,000 to 20,000 dollars |
| Replacement under a driveway or mature trees | 12,000 to 25,000 dollars with hardscape restoration |
| Add for a road crossing or new municipal tap | 3,000 to 10,000 dollars |
Depth, length, obstacles over the line, and whether the city portion is involved are the main drivers.
Local notes
Livingston County laterals sit deep because of the 42-inch frost line, so open-trench replacement here moves more soil and costs more than the same job in a warmer climate. In the lakefront and low-lying subdivisions, a high water table means the trench often needs dewatering, which adds time. Homes converting from septic to city sewer are effectively a new-lateral install and fall at the higher end of these ranges.
What to expect
The job starts with a camera inspection and a locate so the plan is built around the actual line. Replacement is permitted through the city or township and inspected before backfill. We compact the backfill in lifts, restore grade, reseed or re-sod, and replace any concrete or asphalt that was cut. You get the inspection footage and written pricing before work begins.
Related services and reading
Replacement cost guide · Trenchless sewer repair · Sewer excavation · Camera inspection · Trenchless vs. traditional
Sewer line replacement FAQs
Can I replace just the bad part of the line?
Sometimes. If the camera shows one failed section and sound pipe on either side, a partial replacement is reasonable. If the whole run is the same aging material, replacing it once is usually the better value.
How long does a full replacement take?
Open-trench replacement is typically two to five days. Pipe bursting is often a single day. Weather, depth, and permit inspections affect the schedule.
Do you replace the part of the line in the street?
The homeowner is usually responsible for the lateral up to the main, and sometimes to the property line. We coordinate the municipal portion and permits with the city or township.
Will my water be shut off during the work?
Water stays on. You just cannot use drains while the line is open, which is usually only part of one day for the actual pipe swap.
Is replacement covered by insurance?
Generally not the pipe. A service-line endorsement, if you carry one, may cover it. Damage the failure causes inside the home may be covered separately.
How long will the new line last?
New PVC or HDPE is rated for 50 to 100 years. The connections and the bedding matter as much as the pipe, which is why proper slope and compacted stone are part of the job.