How Much Does it Cost to Repair a Sewer Main?

Repair a Sewer Main Costs
Location: National Change Location
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Average reported cost:
$2,781
based on 182 cost profiles
Most homeowners
spent between:
$2,219 - $3,343
Minimum cost:
$531
Maximum cost:
$5,298
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On average, sewer main repair costs $2,781 nationally, with most homeowners spending between $2,219 and $3,343. This data is based on actual project costs as reported by HomeAdvisor members.

Your sewer main is the primary sewer line that connects the city's main sewer line to your home. When a sewer main is damaged or needs to be repaired or replaced, this is usually an expensive job.

Diagnosis

To determine what's wrong with your sewer line, a professional may opt to send a camera down the piping. This will increase the price for sewer main repair but can ultimately save in the long run. By determining the correct problem, it will cut down on unnecessary repair or replacement.

Repair and Excavation

One reason why sewer main repairs are so expensive is that the sewer main line is entirely under the ground, often below gardens, lawns, driveways, or patios. Your yard may need to be excavated or your driveway jackhammered to even access the sewer main. Often the repair needed is not the most expensive part of the process at all. The actual repair may be just the replacement of a length of pipe or the removal of overgrown tree roots. It is the access that is the costly part of the equation.

Replacement and cleanup

If your yard, garden or driveway needs to be dismantled to repair your sewer main, then it stands to reason that a large cost of your repair will be replacing and rebuilding the parts of your home damaged in the process. It is an unfortunate truth that you cannot ignore a broken sewer main. If you are building a new home from the ground up, you may want to ask ahead of time where the sewer main is located. In the event that you may have a needed repair in the future you could opt to not put down cement driveways or costly landscaping over that area.

Slip Lining

Slip lining may be an option for your sewer line repair. Slip lining is a process by which a new sewer line is installed inside the existing one. This helps keep the sewer line replacement cost down by reducing the amount of excavation necessary. Slip lining is not an option for all repairs but may be worth discussing with your pro.

Permits

If you need to replace your sewer line, then you might need to obtain a permit from your city. Although increasing the sewer line replacement cost, doing so will ensure that everything is up to code. There's also a chance that the section needing repair or replacement is actually on the city's property rather than your own. In this case, the city would be responsible for the repair.

 

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