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Sewer line replacement cost: what the published data says
A full sewer line replacement runs about $3,300 on average nationally, with most jobs between roughly $1,400 and $5,300 and long or deep runs reaching $10,000–$20,000; the working unit is $50–$250 per linear foot. A spot repair of one broken section is a different job at $400–$1,500 in most published ranges. The first question is never the total — it is which of the four jobs you are being quoted.
Four different jobs, four different prices
Most bad sewer quotes collapse these into one number. They are separate jobs, and every published guide prices them separately:
| Job | Published range | Source, dated |
|---|---|---|
| Camera inspection | $100–$500 as a line item; commonly $125–$500 standalone | Angi, Aug 2026; HomeGuide, Dec 2025 |
| Spot repair (one section) | $400–$1,500 typical, $600 average; $600–$1,050 for a broken section; deep or distant breaks $5,000+ | Fixr, Jan 2025; HomeAdvisor, Jun 2026 |
| Trenchless lining / bursting | $1,900–$6,000 typical project, $2,900 average; per-foot below | Angi trenchless guide, Jul 2026 |
| Full replacement | $3,319 average, $1,388–$5,323 typical (Angi family); $4,000 average, up to $20,000 to-street (Forbes); $2,000–$10,000 for 40 ft (HomeGuide) | Angi, Aug 2026; Forbes Home, Oct 2024; HomeGuide, Dec 2025 |
A transparency note on sources: Angi, HomeAdvisor and This Old House publish the same underlying dataset (shared parent company), so their near-identical figures are one voice, not three. Forbes, HomeGuide and Fixr are independent of that family; where the families disagree, we show both.
Is it cheaper to repair or replace a sewer line?
Repairing one section is cheaper when one section is the problem. Fixr puts a typical spot repair at $400–$1,500, about $600 on average, against a full replacement averaging $3,319 in Angi's data. The camera footage decides which job you have. A single break, offset joint or root entry point is a spot-repair candidate. Wall loss along the run, many failing joints or a sag that holds water argue for lining or replacement. A company that quotes full replacement without showing you footage of several failure points is asking you to take the expensive answer on faith.
Sources: Fixr (Jan 31, 2025); Angi (Aug 3, 2026).
The per-foot math every quote should survive
Replacement pricing is fundamentally per linear foot: $50–$250 per foot including labor, across both source families — Angi's family puts the average around $150/ft, and Forbes independently publishes $55–$250/ft. A typical lateral is a few dozen feet. So when a quote lands, divide it by the measured length from the camera footage: a $12,000 quote for a 40-foot run is $300 per foot — above the top of every published range — and the quote should say what pushes it there (depth, slab, street opening) in writing.
Sources: HomeAdvisor (updated Jun 19, 2026); Forbes Home (Oct 31, 2024); This Old House (Mar 30, 2026).
Trenchless (no-dig) sewer line replacement cost
Yes, a sewer line can usually be replaced without digging a trench. The crew works through one or two small access pits: lining cures a new resin pipe inside the old one, and bursting splits the old pipe while pulling a new one through. Angi's trenchless guide puts a typical project at $1,900–$6,000, with a $2,900 average. Per foot, trenchless is not cheaper than digging. The savings are in the driveway, lawn and sidewalk that stay in place.
| Method | Published cost per foot | When it can't be used |
|---|---|---|
| CIPP lining | $90–$250 (HomeAdvisor, HomeGuide); $80–$250 (Fixr) | The old pipe has collapsed or lost its shape, or sags enough to hold water |
| Pipe bursting | $60–$200 (HomeAdvisor, HomeGuide); $50–$200 (Fixr) | No room to pull the new pipe, or other utilities and connections in the way |
| Open excavation (for comparison) | $50–$200 (This Old House) | Pipe under a slab, driveway or mature trees, where restoration costs more than the pipe |
Angi publishes the whole-project range by length, which is the number to hold a trenchless quote against once the footage gives you the run:
| Run length | Published replacement cost |
|---|---|
| 25–35 ft | $1,500–$8,750 |
| 35–45 ft | $2,100–$11,250 |
| 45–55 ft | $2,700–$13,750 |
| 55–75 ft | $3,300–$18,750 |
| 75–100 ft | $4,500–$25,000 |
Permits and the camera pass are separate lines in the same guide. How the methods work, and when digging still wins, is on our trenchless page.
Sources: Angi trenchless cost guide (updated Jul 10, 2026); HomeAdvisor (updated Jun 19, 2026); HomeGuide (Dec 22, 2025); Fixr (Jan 31, 2025); This Old House (Mar 30, 2026).
The cost calculator, worked: 50 and 100 feet, by method
There is no magic calculator — the calculation is measured footage × the published per-foot range for the method, plus permits and restoration. Here it is worked at the two lengths people actually search, using the per-foot ranges cited above:
| Method (published $/ft) | Cost to replace 50 feet | Cost to replace 100 feet |
|---|---|---|
| Open excavation ($50–$250) | $2,500–$12,500 | $5,000–$25,000 |
| CIPP lining ($80–$250) | $4,000–$12,500 | $8,000–$25,000 |
| Pipe bursting ($50–$200) | $2,500–$10,000 | $5,000–$20,000 |
Arithmetic on the published per-foot ranges: HomeAdvisor (Jun 19, 2026); Fixr (Jan 31, 2025); Forbes Home (Oct 31, 2024). Angi's trenchless guide brackets whole projects the same way: 75–100 ft at $4,500–$25,000 (Jul 10, 2026). Permits and surface restoration are on top; the camera footage supplies the footage number.
A collapsed sewer line sits at the top of these ranges: a fully collapsed section can't be lined through, so that stretch must be excavated and replaced, and Fixr's repair guide runs deep or hard-to-reach breaks to $5,000+ for a single section before restoration. If the word “collapsed” appears in your quote, the footage showing the collapse — with the distance counter visible — is the first thing to ask for, because it is also what determines whether the collapsed stretch is even on your side of the ownership split.
Source: Fixr drain-line breakage guide (updated Jan 31, 2025).
Clearing a clog is not a repair — and is priced like it
A main-line clog cleared with a cable runs $150–$500 (snaking) or $250–$800 (hydro jetting) in HomeGuide's data; HomeAdvisor's family puts routine clogs at $200–$300, with severe blockages $1,000+. Those numbers are an order of magnitude below replacement — which is exactly why a same-visit escalation from “let me clear this clog” to a five-figure replacement quote should trigger the footage question, not a signature. Recurring clogs on the same line are a real signal something is wrong; what specifically is wrong, and whether it needs a $600 spot fix or a replacement, is what the recording shows.
Sources: HomeGuide (Dec 22, 2025); HomeAdvisor (updated Jun 19, 2026).
How do I know if my sewer line needs to be replaced?
The camera footage decides it. Slow drains in several fixtures, gurgling, and the same main-line clog coming back tell you something is wrong with the line. They don't tell you whether it needs one repaired section or a new pipe. The recording does: where the defects are in feet from the cleanout, how many there are, and what the pipe is made of. Ask for the file and the distance log, and see what a scope should hand over.
What legitimately drives the price up
- Length and where it ends. Runs all the way to a street connection reach $20,000 in Forbes's published range — but first check whether the street section is even yours to fix; in several major cities it is the city's.
- Depth and what's above the pipe. Under-slab open-cut work runs $15,000–$20,000 (Forbes). A pipe under a driveway or mature tree changes method choice entirely — often toward trenchless.
- The ground itself. A trench below the seasonal water table needs dewatering; expansive clay complicates bedding and backfill. Both are readable in the public soil survey before anyone digs — check your address. A quote that cites “bad soil” should agree with the survey.
- Permits and restoration. Permits run up to $1,000 on trenchless projects in Angi's guide, more where a street opening is involved — and concrete, landscaping and sidewalk restoration after an open trench is real money the quote should itemize, not bury.
Sources: Forbes Home (Oct 31, 2024); Angi trenchless cost guide (updated Jul 10, 2026).
The order of operations before you sign
First, footage: no repair beyond a routine clog without a camera inspection whose recording you keep. Second, jurisdiction: your city's lateral rule, because the broken section may not be your pipe. Third, mechanism: what the soil under the address does to buried pipe, because “the ground destroyed it” is checkable, not a mood. Only then does a price mean anything — and it should arrive itemized: method, length, depth, permit, restoration.
Common questions
Why is my quote so much higher than these averages?
The averages are national and most replacements are partial. Long runs to the street, deep pipe, work under a slab or driveway, dewatering a wet trench, and city permit and restoration costs all move a real job above the average — legitimately. The problem is not a high number; it is a high number with no line items. Ask for length, depth, method, permit fee and restoration as separate lines, then check each against the per-foot figures here.
Is trenchless cheaper than digging?
Per foot, usually not. This Old House puts traditional excavation at $50–$200 per foot and trenchless at $60–$250. What trenchless saves is everything around the pipe: the driveway, the landscaping, the sidewalk, and the restoration bill after. On a run under open lawn, open trench can be the cheaper job. Our trenchless page walks through when each method wins.
Does the city ever pay for part of this?
In several major cities, yes — the city maintains the lateral from the property line or curb to the main, which is often the deepest and most expensive stretch. Check your city's rule before you accept a quote that prices the whole run. And some cities require a permit for any lateral work, which is its own honesty check on the contractor.
Does insurance cover a failed sewer line?
Standard homeowners policies usually exclude wear-and-tear failure of buried lines. Separate service-line coverage exists, both as an endorsement on your homeowners policy and as heavily marketed monthly warranty plans — they are not the same thing, and the numbers differ a lot. See our sewer line insurance page.
Sewer Line Record is an independent reference built on public records and published sources. It is not an inspection, and nothing here states that a specific sewer line is failing, safe or code-compliant.
Divide the quote by the footage before you sign it
Per-foot math, the city's rule, and the soil record are all public. A fair quote survives all three.
Independent reference · no account.
Three checks before you sign
Read the quote or the camera verdict together. What was actually scoped, where the damage is, what method is being proposed — and whether you were given the footage.
Read the public record. Soil corrosivity and shrink-swell under the address from the USDA survey, and whether your city makes the lateral your problem at all.
Decide the next step. Sometimes a second camera scope from someone who does not sell repairs; sometimes a spot repair instead of a full dig; sometimes nothing.
Independent — no account.