Sewer Line Repair Cost: $150 to $3,800 + Tree Roots (2026)

How much does sewer line repair cost

National figures. Depth, length, driveways or trees over the line, and city permit rules move the price.

HomeGuide's December 2025 guide puts sewer line repair at $150 to $3,800 depending on the method, and full replacement at $50 to $250 per linear foot, or $2,000 to $10,000 for a 40 foot line. This Old House puts the average replacement at $3,320 in its March 2026 update, with most jobs between $1,390 and $5,320. The two differ because a short spot repair and a full replacement are different jobs; ask which one the quote is for.

Is it an emergency? Sewer backup signs

A sewer line problem is an emergency when sewage is coming up into a tub, shower or floor drain, and Angi's 2026 emergency figures put a main sewer line clog at $1,325 to $5,000 after hours.

• Call now: sewage in the house. Stop using water, keep people and pets away, and see sewage cleanup.
• Get out first: a strong rotten egg smell. The Virginia Department of Health says to go outside and call the fire department.
• Same day: several drains gurgling or backing up at once (HomeGuide).
• Book it: a damp, sunken or extra green patch of lawn over the line. A camera inspection costs $125 to $500 (HomeGuide).

Trenchless sewer repair vs digging

Trenchless work relines or replaces the pipe through small access holes, and HomeGuide and This Old House put it at $60 to $250 per foot. Pipe bursting pulls a new pipe through the old one; lining sets a resin liner inside it. Per-foot prices for each method, what digging adds, and when the whole line should go are on trenchless sewer line replacement cost.

Sewer camera inspection: the first step

A camera inspection costs $125 to $500 in HomeGuide's figures, with a $280 average, and it shows clogs, bellies, cracks, offset joints and roots before anyone quotes a repair. The County of San Diego suggests having the lateral camera-inspected every three to five years. Costs from two publishers, what the video should include and the sewer scope before buying a house are on sewer camera inspection.

Belly in a sewer line: what it is and what fixing it costs

A belly is a sag in the sewer pipe where water collects, HomeGuide says, and it shows up on a camera inspection, which costs $125 to $500.

HomeServe says a belly forms when a section of pipe sinks or settles, most often in clay or cast iron lines. Causes include a line laid without the right slope, wet or poorly compacted soil under it, and later soil movement or tree roots. The signs are a clog that keeps coming back in the same spot, slow drains, gurgling and sewer odors.

HomeServe says the most effective repair is cutting out the sagging section and relaying it with the right slope and support. No cost guide we checked prices belly repair on its own: Angi puts a spot repair of a cracked section at $600 to $1,050, and full replacement runs $50 to $250 per foot (HomeGuide). Ask to see the camera video and why the plumber recommends digging, lining or regular cleaning.

Tree roots in a sewer line: removal cost and fixes

Removing tree roots from a sewer line adds $200 to $600 or more to a cleaning bill in HomeGuide's sewer line cleaning guide, and Angi's 2026 guide lists root removal at $100 to $600.

• How roots get in: HomeGuide says roots seek water and a small crack gives them a way in; Triple-I says the same of small roots seeking moisture.
• How they come out: a camera confirms the roots, then the plumber cuts them with a heavy-duty auger or a hydro jetter with a cutting attachment (HomeGuide). Hydro jetting alone runs $600 to $1,400.
• How often: HomeGuide suggests an inspection or cleaning every 18 to 24 months where mature trees are near the line. Cutting clears the pipe but does not seal the crack.
• Lasting fix: lining or replacing the cracked section; trenchless work runs $60 to $250 per foot.

Signs of a broken sewer line

• Several drains backing up at once, or the same clog coming back. Drain cleaning lists the price to clear it first.
• Gurgling drains and toilets (HomeGuide).
• Sewage odors inside or in the yard.
• Debris in the tub or basement, or puddles and soggy spots over the line.
• A damp depression in the lawn, or one patch of overgrown grass, over the line (HomeGuide's camera guide).

Tree roots are one cause: Triple-I says small roots seeking moisture work into cracks and later cause blockages or major damage. Line age matters too. HomeGuide's lifespans:

HomeGuide, Dec 2025. Soil, roots and maintenance shorten or stretch these.

Sewer smell in house: causes and what to do

A sewer smell in the house often means sewer gas is getting past a dry trap, a cracked waste line, or a blocked or leaking roof vent. The Virginia Department of Health names dry traps and cracks in the waste line under or next to the home, and Wisconsin's health department adds a leaking or blocked plumbing roof vent.

• Pour water into little-used drains. Floor drains, guest showers and basement sinks dry out; both health departments say adding water helps keep traps sealed.
• If the smell is behind a wall or stays, call a plumber to find the source.
• Feeling dizzy, sick or headachy? The Virginia Department of Health lists those as sewer gas symptoms. Get fresh air. For a strong rotten egg odor, it says to go outside and call the fire department.
• Could it be natural gas? If there is any chance it is a gas leak, leave the house and call 911 and the gas utility from outside.

Who pays for the sewer lateral: the city or the homeowner

In San Diego, the property owner is responsible for the sewer lateral from the building all the way to the connection with the public sewer main, according to both the City and the County of San Diego. The City says it responds only when the lateral is blocked or collapsed beyond the property line in the public right-of-way, and "If the lateral is broken, you will have to repair the lateral." Triple-I says the lateral is owned and maintained by the property owner, including any part under the street. HomeGuide says the homeowner is generally responsible for pipes connecting to the main and the city for the main itself, and that an HOA may cover it in some condos and townhomes.

Rules vary by city, so call your sewer utility before you pay for street work. In San Diego, a plumber reports a break in the right-of-way through the City's Water and Sewer Emergency Line at (619) 515-3525. City pages such as plumber in San Diego and plumber in Los Angeles cover local rules.

Does homeowners insurance cover sewer line repair

Usually not for wear and tear. HomeGuide says most policies do not cover wear and tear due to lack of maintenance, and This Old House says basic home warranties rarely cover sewer repairs. Damage from sewage backing up into the house is a separate question: Florida's Department of Financial Services says homeowners policies do not typically cover water backup, and a water backup endorsement covers water that backs up from a sewer, sump or drain. Call your insurer to ask what your policy covers. After a backup, Triple-I says to photograph the damage, save receipts and contact your insurer as soon as possible; do not sign over your claim to a contractor.

Triple-I also notes that a properly installed backwater valve lets sewage out but not back in. Ask the plumber whether one fits your line while it is open.

Sewer line repair near me: questions to ask

• Can I see the camera video? Ask for a copy and where along the line the problem is.
• Spot repair, lining, bursting or full replacement? And why that method for your pipe.
• Who handles the permit and any street or sidewalk work? Permits run $30 to $1,000 across the two guides.
• Is lawn, driveway or landscaping restoration in the price?
• What is your license number, and can you show proof of insurance? The plumber hub lists who licenses plumbers in each state.

If sewage has already come into the house, see sewage cleanup. If it is happening now, an emergency plumber lists what to do first. Other costs: home repair costs. Calls go to an independent company that serves your area and takes this kind of job. How calls work.

Sewer line costs in depth: trenchless sewer line replacement cost, sewer camera inspection and hydro jetting cost.