As 2026 planning estimates in Canadian dollars, clearing a main sewer line typically quotes $200 to $450, a camera inspection $250 to $600, a sectional liner $2,500 to $6,500, an excavated spot repair $3,500 to $16,000, and full replacement of a 15 to 25 m lateral $12,000 to $35,000 or more. A backwater valve usually runs $1,800 to $4,500. Your camera video decides which line applies.
- The biggest cost driver is not the pipe but getting to it: depth, what is on top, and access.
- After-hours calls typically cost 1.5 to 2 times the daytime rate, or a flat call-out premium.
- A camera run is cheap relative to any repair, and the repair price should be built on it.
- Repeated clearing adds up; compare a few years of it against a one-time repair.
01 /What does it cost to clear a clogged sewer line?
Clearing a residential main line with a cable through an accessible cleanout typically quotes $200 to $450 during business hours. Access through a toilet or roof vent raises that to about $300 to $600, and hydro jetting quotes $450 to $1,100. Clearing a single sink or tub branch is usually $150 to $350.
| Service | Typical range | Notes |
|---|---|---|
| Branch drain clearing (sink, tub, laundry) | $150–$350 | Small cable; flat rate or first hour |
| Main line cable, accessible cleanout | $200–$450 | Business hours |
| Main line cable via toilet pull or roof vent | $300–$600 | Extra labour and fixture reset |
| Hydro jetting, residential main | $450–$1,100 | Higher with heavy roots or grease |
| Heavy root cutting | $350–$900 | May need several passes |
| Cast iron descaling | $800–$2,500+ | Slow, specialised work |
02 /How much more does an emergency sewer call cost?
After-hours sewer service in Canada typically costs about 1.5 to 2 times the daytime rate, or a flat call-out premium of roughly $150 to $400 on top. A main-line clearing that quotes $200 to $450 in business hours often costs $350 to $900 at night, on a weekend or on a holiday. Ask for the premium before the truck is dispatched.
Pay for the clearing and the camera at night; decide on any repair in daylight. What to do when the sewer backs up covers the first hour.
03 /How much is a sewer camera inspection?
A standalone residential camera inspection typically quotes $250 to $450 through an accessible cleanout, and $300 to $600 for a pre-purchase inspection with a written report. Added to a cleaning visit it is usually $150 to $350 extra. Toilet-pull access adds about $100 to $300, and a surface locate of a defect with a sonde runs $0 to $200.
The fee should buy a recorded video with distances, a written summary and, where a repair is likely, a locate on the surface. That recording is what every later quote and any second opinion depends on.
04 /What does a sewer spot repair cost?
An excavated spot repair typically quotes $3,500 to $6,500 when shallow under lawn, $5,000 to $9,000 at moderate depth, and $7,000 to $16,000 when deep or under concrete or asphalt. A repair under the basement slab is usually $4,000 to $12,000. A trenchless sectional liner over one defect quotes $2,500 to $6,500, with each extra section on the same visit $1,500 to $3,500.
| Repair | Typical range | Assumes |
|---|---|---|
| Dig and repair, shallow | $3,500–$6,500 | Under 1.5 m, lawn, machine access |
| Dig and repair, moderate depth | $5,000–$9,000 | 1.5–2.5 m, lawn or bed |
| Dig and repair, deep or under hard surface | $7,000–$16,000 | Over 2.5 m, or under concrete or asphalt |
| Under the basement slab | $4,000–$12,000 | Saw-cut, hand dig, re-pour |
| Sectional (point) liner | $2,500–$6,500 per section | Round pipe on grade, cleanout access |
05 /How much does it cost to replace or reline a whole sewer line?
For a 15 to 25 m residential lateral, open-cut replacement typically quotes $12,000 to $25,000 when shallow under soft landscaping, and $22,000 to $50,000 or more when deep or under hard surfaces. Full-length CIPP lining quotes about $9,000 to $28,000, and pipe bursting $10,000 to $30,000. The city connection, permits and surface restoration are the lines most often left out of low quotes.
| Method | Typical total (15–25 m) | Per metre (per foot) |
|---|---|---|
| Open cut, soft landscaping, under 2 m deep | $12,000–$25,000 | $600–$1,000/m ($180–$300/ft) |
| Open cut, deep (2.5–4 m) or under hard surfaces | $22,000–$50,000+ | $1,000–$2,000/m ($300–$600/ft) |
| CIPP lining | $9,000–$28,000 | $500–$1,200/m ($150–$365/ft) plus setup |
| Pipe bursting | $10,000–$30,000 | $550–$1,300/m ($170–$400/ft) plus pits |
Which method fits your defect is explained in your repair options. Detailed method pricing lives on sister sites SewerQuotes.com and SewerReplacement.ca.
06 /What does a backwater valve cost to install?
A mainline backwater valve in an existing home typically quotes $1,800 to $3,200 in an unfinished basement with a drain at normal depth, $2,800 to $4,500 in a finished basement, and $3,500 to $6,000 with a deep drain or difficult access. Adding a cleanout is about $400 to $1,200 more, a sump pit and pump $1,500 to $3,500 more, and the permit $100 to $300.
Some cities subsidise valves. As published in September 2026, EPCOR offers up to $800 for eligible Edmonton homes and Toronto up to $1,600 per valve for eligible work; other programs are on the across Canada page. Why a valve helps in storms is explained in backups in the rain.
07 /What does sewer backup cleanup cost?
Professional cleanup of an unfinished area with hard surfaces typically plans at $1,000 to $3,500. One finished room plans at $3,000 to $10,000 and a fully finished basement at $8,000 to $25,000 for extraction, removal, disinfection and drying alone. Rebuilding walls and floors afterwards is a separate bill, often $15,000 to $50,000 or more for a finished basement.
Whether insurance pays depends on optional sewer backup coverage; read does insurance cover sewer backup. Cleanup itself is covered in depth by sister site SewageCleanup.ca.
08 /Is it cheaper to keep clearing the line or to fix it?
If a line needs clearing more than about once a year, the arithmetic usually favours fixing the defect. As an illustration using the ranges above, eight to ten emergency cable calls over five years at $450 to $700 each total roughly $3,600 to $7,000, about the same as a sectional liner at $2,500 to $6,500 that stops the root entry for good. A backup with a deductible and cleanup tips the balance further.
Before paying for any repair, check the contractor with the vetting checklist and make sure the quote is built on a video you have seen. If the numbers you were given look far from these ranges, send the quote to the desk for a second look.
FAQQuestions people ask
Why do sewer quotes for the same house differ so much?
They often price different jobs: different lengths, access pits, methods, restoration or whether the city connection is included. Compare scope line by line before price.
Is the sewer camera inspection fee credited if I hire them for the repair?
Sometimes. Ask before the inspection whether the fee is credited against a repair, and get the video either way.
Does the price of a sewer repair include restoring my lawn or driveway?
Only if the quote says so. Restoration is one of the most commonly omitted lines, so ask what surface comes back and to what standard.
Are permit fees included in sewer repair quotes?
Not always. A good quote names the permit, who applies and whether the fee is included.
NETWORKGo deeper across the HAUSE Sewer network
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