Sewer Line Replacement Cost: 2026 Prices by Method and Length

Sewer line replacement cost runs $50 to $250 per foot in 2026, or $2,500 to $12,500 for a 50-foot line, per HomeGuide and HomeAdvisor, with CIPP lining at the top of that range.

How much does sewer line replacement cost per foot in 2026?

Sewer line replacement cost runs about $50 to $250 per foot across the four cost guides we read. Open trench runs $50 to $200 (This Old House, from Angi data), pipe bursting $50 to $200, and CIPP lining $80 to $250. The ranges overlap almost completely, so what sits on top of your pipe matters more than the method.

HomeAdvisor is an Angi brand and This Old House uses Angi estimates, so treat those two as one data family.

Sources: HomeGuide’s sewer line cost guide, HomeAdvisor’s sewer main cost guide, This Old House, and Fixr’s drain line breakage guide. Fixr’s bursting table says $50 to $250 but its text says $50 to $200; we use the text.

Bars are range midpoints. The under-slab bar is HomeAdvisor’s $300 to $350 per foot surcharge, charged on top of the pipe work.

What does it cost to replace 25, 50 or 100 feet of sewer line?

Multiply the measured footage by the per-foot range. At This Old House’s $50 to $200 open trench rate, 25 feet costs $1,250 to $5,000, 50 feet costs $2,500 to $10,000 and 100 feet costs $5,000 to $20,000. CIPP at $90 to $250 per foot runs $4,500 to $12,500 for 50 feet. HomeGuide’s own length table matches this math: 40 feet is $2,000 to $10,000.

Why are national averages lower? HomeAdvisor’s $3,319 and This Old House’s $3,320 blend short partial repairs with full runs. HomeGuide says partial jobs often cover 1 to 15 feet and full replacements around 40 feet, so a full 50-foot quote above $5,000 is normal.

For how each trenchless method works in the ground, see our guide to trenchless sewer repair methods.

What drives sewer line replacement cost up or down?

Depth, what is on top of the pipe, and local fees drive the total more than pipe material. HomeAdvisor prices trenching at $4 to $12 per linear foot, rising sharply on deep lines, and adds $300 to $350 per foot under a slab. HomeGuide adds $3 to $8 per square foot to remove concrete and $500 to $2,000 for a new cleanout. Permits run $30 to $1,000 depending on the source and town.

Depth and trench safety

Once a trench reaches 5 feet, OSHA rule 1926.652 requires a protective system such as shoring, a trench box or sloped walls unless the cut is in stable rock. This Old House flags lines buried deep below the frost line in cold climates as one of the costlier cases. Ask the depth at both ends and whether shoring is priced in.

Driveway, sidewalk and slab cuts

A 3-foot-wide cut across a 20-foot driveway is 60 square feet. At HomeGuide’s $3 to $8 per square foot that is $180 to $480 just to remove the concrete, and HomeAdvisor’s $1 to $25 per square foot for concrete driveway repair puts the patch at $60 to $1,500 more (our arithmetic). Ten feet of trench under a basement slab adds $3,000 to $3,500 at HomeAdvisor’s slab rate. None of the four guides publishes a street-cut price, so if your lateral connects mid-street, get the street restoration and any right-of-way permit itemized.

Permits from two real fee schedules

National guides disagree on permits: HomeGuide says $30 to $500, This Old House $100 to $1,000, HomeAdvisor about $200, and Fixr a $75 average plumbing permit. Two published schedules show how fees are built:

• Bridgeport, Connecticut: the WPCA fiscal 2026-2027 fee schedule charges $100 for a sanitary sewer lateral repair inspection permit from 8 am to 4 pm on weekdays and $200 at other hours. A new single-family sanitary connection permit is $125.
• Hartland, Wisconsin: the village’s 2024 plumbing permit application charges a $60 residential base fee plus $75 for the first 100 feet of sanitary building sewer and $0.35 per foot after that. A 50-foot line is $60 + $75 = $135; a 150-foot line is $60 + $75 + (50 x $0.35) = $152.50.

City tap, cleanout and backflow

A connection fee usually applies only to a new tap, which is how Bridgeport labels its $125 single-family fee. Replacing a lateral in the same spot is billed as a repair inspection. HomeGuide prices a new cleanout at $500 to $2,000 and a backflow preventer at $150 to $1,200. The open trench is the cheapest time to add one.

Should you repair or replace the sewer line?

Repair when the camera shows one defect in otherwise sound pipe; replace when the problems repeat along the run or the material is past its life. This Old House lists small cracks, minor roots, separated joints in good pipe, minor sagging and limited corrosion as repair cases. Widespread, recurring damage or aging material points to replacement.

Apply these rules to the camera video. Our rundown of common sewer line problems shows what each defect looks like.

1. Belly that holds water: a CIPP liner forms a new pipe inside the old one, so it keeps the sag. Re-bed it with a spot dig, or trench if it runs long.
2. Roots at one or two joints: clearing costs $100 to $600 (HomeAdvisor), then a spot repair or liner seals them. Roots at most joints point to lining or bursting the whole run.
3. Offset joints: one offset in good pipe is a spot repair; several mean the pipe is moving, which favors replacement.
4. Orangeburg pipe: HomeGuide gives Orangeburg and clay a 30 to 60 year life and This Old House calls Orangeburg prone to deterioration. Plan for full replacement rather than patching.
5. Collapsed section: HomeAdvisor says trenchless is sometimes unavailable when a pipe has fully collapsed; expect excavation at that spot.
6. Scaled or corroded cast iron: Fixr gives cast iron drains 20 to 50 years; This Old House gives 75 to 100. Judge by the camera, not the age.

Which pipe goes in: PVC, HDPE or a CIPP liner?

Open trench and spot repairs usually go in with 4-inch PVC, pipe bursting usually pulls in high-density polyethylene (HDPE), and lining leaves a resin liner cured inside the old pipe. HomeGuide prices 4-inch PVC at $3 to $8 per foot for material, a small share of a $50 to $250 per foot job.

• PVC: new laterals are commonly thin-wall SDR 35 sewer pipe or thicker Schedule 40 DWV pipe. Local code decides which is allowed. This Old House says PVC lasts 100 or more years; HomeGuide gives 50 to 100.
• HDPE: Bob Vila describes the new pipe in bursting as usually high-density polyethylene.
• CIPP liner: HomeAdvisor describes an epoxy-saturated liner pulled through from one access point. Utility specifications commonly design lateral liners to ASTM F1216 Appendix X1 with a 50-year design life, which Underground Infrastructure magazine (November 2017) reported is a specification target rather than a tested lifespan.

Who pays for which part of the sewer line?

In most towns the homeowner owns the lateral from the house to the public main and pays to replace it, while the city or sewer district owns and maintains the main, per HomeGuide. Condo and townhome owners may have the line covered by the HOA. The exact split point, property line or the main itself, is set by your local sewer ordinance.

Call the sewer utility before you sign so you know which feet of pipe are yours. Even on your segment, the city may require its own inspection, as Bridgeport does for lateral repairs.

Does homeowners insurance cover sewer line replacement cost?

Standard homeowners policies usually do not pay to replace a worn-out sewer line. HomeGuide says most policies exclude wear and tear from lack of maintenance, and Bob Vila lists tree roots, poor upkeep, floods and earthquakes as typical exclusions. Sudden damage from events such as vandalism or an explosion may be covered up to policy limits.

The fix is a service line endorsement or a stand-alone plan; our guide to sewer line insurance compares what those cover and what they cost.

How do you get an accurate sewer line replacement quote?

Start with a recorded camera inspection, then get at least three written quotes priced on the same footage and depth. HomeGuide also advises a written warranty and never paying in full before work starts. Quotes that leave out permits or restoration are not comparable.

1. Book a sewer scope inspection ($100 to $500) and keep the video with the footage counter showing where each defect sits.
2. Get the length to the main and the depth at both ends.
3. Require line items for permit, restoration, cleanout and street work.
4. Confirm who pulls the permit and books the city inspection before backfill.
5. Get the warranty term in writing and pay in stages, not up front.