Sewer Line Replacement Cost Calculator
Trenchless costs more per foot and often less overall — the difference is what sits on top of the pipe.
Job cost
$8,337.50
- Open cut (trench and replace) — 50 ft at $110.00
- $5,500.00
- Camera, permit and restoration
- $1,750.00
- Contingency (15%)
- $1,087.50
- All-in per foot
- $166.75
Confirm who owns the lateral before paying. In most municipalities the homeowner does, but where the city owns the section under the street the difference is large.
Other buried line to deal with? Price gas line work →
How this is calculated
work = length × rate for the method
extras = camera + permit + cleanout
+ landscape + hardscape restoration
total = (work + extras) × (1 + contingency%)
per foot = total ÷ lengthRestoration is a line item rather than a footnote because it is what decides the method. Pipe bursting runs about fifty percent more per foot than open cut, so across a bare lawn digging wins comfortably. Put a driveway, a patio or a mature tree over the run and the restoration line alone can exceed the difference, which is why the trenchless quote comes out lower on exactly the properties where it looks more expensive per foot.
The all-in per foot figure divides everything, restoration included, by the length. Use it rather than the quoted rate when comparing bids, because two contractors quoting the same dollars per foot can differ by thousands on what they put back afterwards, and only one of them may have said so.
Cost by method, with and without hardscape
| Method | Rate | 50 ft across a lawn | 50 ft under a driveway |
|---|---|---|---|
| Open cut (trench and replace) | $110.00/ft | $8,337.50 | $11,212.50 |
| Pipe bursting (trenchless) | $165.00/ft | $10,580.00 | $10,580.00 |
| CIPP lining (cured in place) | $130.00/ft | $8,567.50 | $8,567.50 |
The two right-hand columns are the whole decision. Across a lawn, open cut is the cheapest row by a clear margin. Under a driveway, the restoration it triggers closes most of that gap, and on a patio, a street or anything with mature planting it disappears entirely. Nothing about the pipe changed between those columns — only what was sitting on top of it.
Frequently asked questions
How much does sewer line replacement cost?
Between $4,000 and $12,000 for a typical 50 foot residential lateral is the usual range, or roughly $80 to $200 per linear foot depending on method, depth and what is on top of the pipe. A spot repair at a single break is far less, often $1,500 to $4,000. Depth is a large hidden variable: a line eight feet down costs much more to reach than one at four.
Is trenchless actually cheaper than digging?
Per foot, no — pipe bursting and lining cost more than open cut. They win on what they avoid: a trench across a driveway, a mature tree, a patio or a city street brings restoration costs that can exceed the piping. Across a bare lawn, open cut is usually the cheaper answer, and a contractor who insists otherwise is worth questioning.
What is the difference between pipe bursting and lining?
Pipe bursting pulls a new pipe through the old one while a bursting head splits the old pipe outward, which means you end up with a full new pipe and can even upsize. CIPP lining inserts a resin-saturated liner that cures inside the existing pipe, forming a pipe within a pipe — less disruptive still, but it slightly reduces the internal diameter and needs the host pipe to be structurally intact enough to line.
Do I need a camera inspection first?
Yes, and it is the cheapest money in this whole job. A camera survey shows where the problem is, how far along the run, whether it is roots, a belly, a crack or a collapse, and whether the pipe can be lined at all. Buying a full replacement without one risks paying for eighty feet of pipe to fix a break at twelve, and it is also the evidence you need if a warranty or an insurer is involved.
Who owns the sewer lateral — me or the city?
In most US municipalities the homeowner owns the lateral from the house to the main, sometimes including the portion under the street, and is responsible for repairing it. Rules vary enough that it is worth confirming with your utility before paying, because where the city owns the section under the road the cost difference is large. Some cities also offer lateral insurance or assistance programs.
Will insurance cover it?
Standard homeowner policies usually exclude the buried lateral, though many insurers sell a service line endorsement cheaply that does cover it. Damage from tree roots and general deterioration is normally treated as maintenance rather than a covered peril. Check whether you have the endorsement before paying out of pocket, and document the cause either way.
Results are planning estimates built from typical price ranges, not quotes. Depth, soil, access and municipal requirements move these figures substantially, CIPP lining requires a host pipe sound enough to line, and ownership of the lateral under the street varies by municipality. Get a camera survey before commissioning any of this.