Drain Repair Cost in Ontario
A blocked drain is a small problem. A broken drain line is a much bigger one. The cost difference is also massive: $250 for a basic cleaning, $8,000 for a full sewer line replacement. Knowing what you actually need before the plumber arrives saves time, stress, and often a lot of money.
Drain repair in Ontario runs $250 to $3,500+ depending on the job. Full sewer line replacement is its own category, $2,500 to $8,000+. Here is the full cost picture by repair type.
Drain Repair Cost in Ontario
| Repair type | Typical cost |
|---|---|
| Basic drain cleaning (snake, single line) | $250 to $400 |
| Mainline drain cleaning | $400 to $800 |
| Hydro-jetting | $500 to $1,200 |
| Camera inspection | $250 to $500 |
| Drain trap or section repair | $400 to $1,500 |
| Sewer line spot repair (excavation) | $2,000 to $4,500 |
| Sewer line replacement (traditional dig) | $4,000 to $8,000 |
| Trenchless sewer line repair (pipe lining) | $3,000 to $7,000 |
| Full sewer line replacement (deep or long run) | $8,000 to $20,000+ |
The wide range is because "drain repair" covers everything from a 30-minute snake job to a multi-day excavation. The diagnosis decides the cost.
What Drives the Price
Type of Repair
Cleaning is the cheapest option. Spot repairs (replacing a single damaged section) sit in the middle. Full replacement is the top of the range. The first step is always a camera inspection to confirm what is actually needed. See our guide on signs you need drain repair to understand the symptoms.
Location of the Damage
A drain section inside the home, exposed in the basement, costs much less to fix than a buried sewer line under the front lawn or a concrete driveway. The deeper and harder to reach, the more expensive.
Trenchless vs Traditional
Traditional sewer replacement digs up the yard or driveway to expose the pipe. Trenchless methods (pipe lining, pipe bursting) work through small access points and avoid most excavation. Trenchless costs slightly less in some cases but the real saving is in restoration: no torn-up lawn, driveway, or hardscaping to rebuild after.
Restoration Cost
Often forgotten in the original quote. A $5,000 sewer dig that destroys a $4,000 interlock driveway has a real total of $9,000. Always ask the plumber to itemize the dig and the restoration separately, or quote trenchless as an alternative.
Permits and Inspections
Sewer line work usually requires a permit from the municipality. Permit fees, drawings, and inspections add to the total. We handle permits as part of our drain repair service.
What a Camera Inspection Reveals
Almost every drain repair starts with a camera. A waterproof video camera on a flexible cable runs through the drain line and shows exactly what is wrong: a clog, a crack, root intrusion, a collapsed section, or a slipped joint. The inspection takes 30 to 60 minutes and costs $250 to $500.
It is also the document you want before a major repair. A camera video confirms the diagnosis, supports insurance claims, and protects you from up-selling. Always insist on seeing the video before approving a major repair.
Cleaning vs Repair
Drain Cleaning
Removes debris, grease, or root growth from inside an intact pipe. Snaking ($250 to $400) handles most clogs. Hydro-jetting ($500 to $1,200) is more thorough for grease and root build-up. Works when the pipe itself is healthy. See our drain cleaning service.
Drain Repair
Fixes the pipe itself: cracks, collapsed sections, root intrusion, corrosion. No amount of cleaning fixes a broken pipe. If you have had the same drain cleaned twice in a year, it is almost certainly a repair issue.
Insurance and Sewer Backup
Standard home insurance does not cover sewer backup damage unless you have specifically added the "sewer backup" rider. Many Markham homeowners discover this only after a backup. The repair to the pipe is rarely covered, but the cleanup and restoration of damaged finishes often is, if the rider is in place.
If you have had repeated drain issues, prevention is far cheaper than cleanup. A backwater valve stops sewer backup at the source.
Ways to Lower the Cost
- Get a camera inspection before agreeing to any major repair.
- Ask for a trenchless quote alongside the traditional dig quote.
- Bundle drain repair with other plumbing work to save on service calls.
- Address symptoms early, before they become full failures.
- Add sewer backup coverage to your home insurance ($30 to $80 per year).
- Check with the City of Markham for any Private Plumbing Protection rebates that apply.
Drain Repair Cost FAQ
How much does drain repair cost in Ontario?
Basic cleaning runs $250 to $400. Mainline cleaning is $400 to $800. Section repairs run $400 to $1,500. Sewer line replacement is $4,000 to $8,000, or $3,000 to $7,000 trenchless.
What is the most expensive part of a drain repair?
Excavation and restoration. The pipe itself is cheap. Digging it up and rebuilding the driveway, lawn, or landscape on top is what makes traditional sewer replacement expensive.
Is trenchless drain repair worth it?
Yes for most homes. Trenchless costs slightly more per linear foot but saves thousands in restoration when the pipe runs under a driveway, walkway, or finished yard.
Does home insurance cover drain repair?
Not the pipe itself. Sudden damage from a sewer backup can be partially covered if you have the sewer backup rider on your policy. Slow leaks, root damage, and pipe age are not covered.
How long does a drain repair take?
A simple cleaning is 30 to 60 minutes. A section repair takes a half-day to a full day. A full sewer line replacement is 1 to 3 days for traditional dig, 1 to 2 days for trenchless.
The Bottom Line
Drain cleaning is $250 to $1,200. Drain repair is $400 to $4,500 for spot work, $3,000 to $8,000 for sewer line replacement. Always start with a camera inspection, get the video, and ask for a trenchless quote alongside the traditional dig. Add sewer backup to your home insurance before the next storm.
Have a drain that keeps backing up?
MBM Plumbing handles camera inspections, drain cleaning, drain repair, and trenchless sewer line repair across Markham and the GTA. Call (647) 293-2021 or request a free assessment.