How Much Does It Cost to Replace or Repair a Sewer Line?

Typical Range:

$1,199 - $4,611

Find out how much your project will cost.

Cost data is based on actual project costs as reported by 848 HomeAdvisor members. Embed this data

How We Get This Data

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  • Homeowners use HomeAdvisor to find pros for home projects.
  • When their projects are done, they fill out a short cost survey.
  • We compile the data and report costs back to you.

Updated March 31, 2022

Reviewed by Jeff Botelho, Licensed Journeyman Plumber.

Written by HomeAdvisor.

The average sewer line replacement cost runs from $50 to $250 per foot. Most homeowners pay between $50 to $125 per foot for those replacements. Replacing a sewer line costs more. If you’re getting a new sewer line, expect to spend between $1,199 and $4,611.

When your plumbing isn’t working, it’s hard to miss. Sewage water can back up into nearly every part of your home, from the basement all the way to the driveway outside. This doesn’t just smell bad, it’s a biohazard. Find out how much you can expect to spend should you need to have your main sewer line repaired or replaced.

Sewer Line Repair and Replacement by Type

There are many different types of sewer line repairs and replacements performed by plumbing pros. They can vary vastly in cost depending on the amount of labor required and other factors that we’ll break down below.

Sewer Line Repair

Repairs made to your sewer line usually involve placing new equipment which runs from $50 to $250 per foot. Most homeowners pay between $50 to $125 per foot.

How much you can expect to pay depends on what you’ve already got in terms of plumbing, the length of the sewer line, and where it’s going on your property. Hire a plumber you trust to let you know which will be more costly depending on your circumstances, repairing the line or replacing it altogether.

Sewer Line Replacement

Getting a new sewer line costs between $1,000 to $4,000. The materials used to make the sewer line affect its price variations. Most plumbers will suggest using PVC, while others will suggest cast iron which can cost as much as 4 times the amount of PVC. We discuss the differences in those types of pipes later on in this guide.

Main Sewer Pipe & Lateral Replacement From House to Street

Expect to pay as much as $25,000 to put in a new one that extends further into the street. The cost of replacing a sewer main and its connection from house to street is more expensive than other repairs or replacements. This is because of additional factors like the digging of pipe trenches, and the distance of the house’s connection from the city’s connection.

Basement Sewer Line Replacement

Trenches usually cost between $400 to $1,200 per 100 linear feet. But, trenching under a slab often costs an extra $150 to $200 per foot. Trenchless sewer line replacement could be an option to help you save money. Be sure to consult your plumber about this as a viable option for your home.

Sewer Trap Replacement

To replace a sewer trap, you must hire a plumber who will typically charge between $45 and $200 per hour, plus up to $100 in materials. Your sewer trap is responsible for keeping unwelcome critters and aromas from your home.

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Broken or Cracked Sewer Pipe Repair

The cost to replace a pipe runs $1,100 on average if you’re just changing part of the line. Replacement is usually your only option for broken or cracked equipment. We go over the signs your pipes may be cracked or broken later on in this guide.

Tree Roots in Sewer Line Repair

Removing tree roots from a sewer line costs $100 to $600. If you need the sewer inspected via camera, that costs $350. If the roots shifted or cracked the pipes, your plumber may recommend replacing at least one part of the line in question.

Collapsed Line Repair

A collapsed sewer line is a sewer line that must be replaced. That costs $50 to $250 per foot. If the damage is extensive enough your plumber may recommend you replace the entire line.

Trenching Costs

Trenching costs $4 to $12 per foot, typically, though may be considerably more expensive if your sewer main is deeper than average, or if there are other utilities nearby that need to be dug around by hand. Your plumber may include this cost as part of the estimate. They may also recommend that you hire another contractor for the task depending on just how big the project may be.

Trenchless Sewer Repair/Replacement

Trenchless sewer line replacement costs between $60 and $250 per foot. Opting for a trenchless sewer replacement allows you to keep more of your property intact. Talk to your pro to find out if it’s a viable option for you. One of these two methods is used with trenchless systems:

  • CIPP lining: $80-$250 per foot, averaging about $9,000 for the project. The plumber pulls a liner saturated with epoxy through the existing pipes. CIPP only requires excavation to create one access point, which limits the damage to your property.

  • Pipe-bursting: $60-$200 per foot. A pneumatic or hydraulic head enters the sewer to break up existing brittle clay or iron piping.

Sewer Line Replacement Cost Breakdown

Sewer line repair costs will vary based on materials and the extent of the damage. For example, repairing copper pipes will nearly double your price, as will the distance the pipe needs to run from your house to the city hookup. If your sewer line project requires yard maintenance—such as repairing the driveway or resodding—you’ll need to factor that into your overall budget.

  1. Material

  2. Distance

  3. Location of the pipe

  4. Yard repair

  5. Type of fix

  6. Extent of the damage 

Your sewer line repair or replacement will likely start with a video inspection, where a camera is sent down the line to look for breaks or clogs. This service wil help determine repair needs and give you an accurate overall project cost. 

Cost Considerations

Factor Total Cost Including Labor
Video inspection $100 – $500
Pipe replacement $50 – $450 per linear foot
Sewer trap replacement $100 for parts, plus $45 – $200 per hour for a professional plumber
Ground excavation $30 – $70 per cubic yard
Haul away old pipe $250 on average

DIY vs. Hiring a Plumber

Sewer line repair and replacement of any sort is a task for a professional plumber. While you can technically do it yourself, you risk creating issues that can send sewage back into your home. Professional work provides a better guarantee. To schedule a consultation, hire a plumber near you.

"Aside from the risk of damage to your home, there are severe health risks involved with plumbing," says Jeff Botelho, an Expert Review Board member and licensed plumber. "Sewer piping is a breeding ground for a lot of hazardous diseases, such as hepatitis, e-coli, and typhus. Take this into consideration before starting any plumbing work in your home."

FAQs

How much does sewer line replacement cost per foot?

One of the biggest factors in your sewer line project is the distance from the house to the connection point, given the materials needed. On average, sewer line trenching costs between $3,000 and $7,000. It’ll run about $4 to $12 per foot to dig the trench.

If accessing the sewer line requires tearing up a driveway or concrete patio, your price will jump higher. Trenching under a structure like a concrete patio can cost $150 to $200 per square foot and could easily exceed $25,000.

What is a sewer sleeve and what does it cover?

A sleeve is another term for CIPP trenchless sewer line replacement, which costs $80 to $250 per foot.

What are the differences between types of material used for piping?

  • Cast Iron: Repairs often weaken the line, so total replacement is usually a better investment

  • Orangeburg: Made of a wood pulp that disintegrates easily, but may be a candidate for trenchless lining

  • Lead or Lead Solder: Leaches toxic substances into your water, requiring a pro trained in lead abatement

  • Plastic: Breaks relatively easily, but can usually be replaced in parts

What signs can I look for to tell if my sewer pipes are damaged?

  • Persistent drain clogs or a noticeable backup of sewage in the toilet can suggest a blockage.

  • Higher than normal utility bills can (but not always) indicate damaged seals at pipe joints, causing excess water to spill from the system.

  • A powerful sulfur smell (like rotten eggs) demonstrates a buildup of sulfide gas from long-standing and decomposing waste.

  • Excessive water or sewage in one location within the yard or around the home may mean that tree roots have penetrated the pipes.

Do I need permits or approval to work on my sewer lines?

If you need to replace your sewer line, then you will most likely need to get a permit from your city. There are only a few situations where the section that needs repair or replacement is actually on the city's property rather than your own, like in the street. Always check with the pro you hired to see about the permits and whether they or you should obtain them. You can also call your town’s building department to see if you need a permit for your project.

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