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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.
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).
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 and in our trenchless guide:
| 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).
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.
Should I replace the whole line or just the broken section?
That is exactly what camera footage decides. A single break or offset joint is a spot-repair candidate at a fraction of full-replacement cost; widespread wall loss or many failing joints argues for lining or replacement. A company that quotes full replacement without showing you footage of multiple failure points is asking you to take the expensive answer on faith.
Is trenchless cheaper than digging?
Per foot, usually not — published per-foot ranges overlap almost completely. 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 genuinely 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 a cheap 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.
Before you sign
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.
Free call · independent reference · no obligation.
What a call is for
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 and free — no obligation.