Sewer Cleaning in Toronto: Main Sewer Line Snaking & Jetting
Toronto & the GTA • Call 647-784-8448
Main sewer line cleaning in Toronto clears the building drain that carries every fixture to the city sewer, addressing the cause of recurring basement backups, gurgling toilets, and multiple slow drains at once. Tornado Plumbing & Drains cleans main sewer lines across Toronto and the GTA from accessible cleanouts using mainline machines, jetting, and camera follow-up to confirm the line is actually open.
Last updated September 4, 2026
When this service makes sense
Part of Drain & Sewer Services in Toronto & the GTA
Book this service when
Book this when every fixture drains poorly at once, the line has been snaked repeatedly and keeps backing up, or a home inspection flagged a sluggish main sewer that needs clearing and documenting.
Common signs
- A drain company has already snaked the line two or three times and the backup keeps returning within months
- Every fixture in the house drains poorly at once, so the obstruction is past the branches on the shared lateral
- A real estate inspection flagged the main sewer as sluggish and you need it cleared and documented before closing
- You have mature trees over the sewer route and want the lateral cut back before roots fully block it
If you're not sure, compare these too
- Root Intrusion Removal - when the blockage is confirmed roots at the joints
- Sewer Cleanout Installation - when there is no access point and every cleaning means pulling a toilet
- Sewer Line Repair - when the camera shows the pipe is damaged, not just blocked
On this page
- Licensed, insured, reviewed Toronto plumbers
- 25-year workmanship warranty
- Why main line cleaning isn't the same job as snaking a drain
- Situations that call for a main line cleaning, not a fixture snake
- What is included
- Signs the main sewer line needs cleaning:
- What clogs a main sewer line
- How main line cleaning works
Quick guide and key details
What changes price and scope
- Whether a cleanout is available or a toilet has to be pulled.
- Line length and the cause of the clog.
- Whether camera inspection follows.
- Jetting on top of cabling, or after-hours dispatch.
How a professional visit usually unfolds
1. Locate the cleanout
Use the basement cleanout, exterior cleanout, or roof vent. Best access for the mainline machine.
2. Run the mainline cable
Cable through the line with the right cutter for the suspected clog. Opens the restriction.
3. Jet if grease or scale
Hydro jet for buildup the cable cannot remove. Cleans pipe walls.
4. Camera inspect
Run the camera once the line is clear. Confirms the line is open and identifies any damage.
5. Recommendation
Discuss whether the cause is a one-time clog, recurring roots, or pipe damage. Sets expectations for the next 12 months.
Recent Sewer Cleaning work
These real project photos show the kind of work this service involves, so you can see examples before you book.
Finished connection: new PVC lateral, shielded couplings and cleanout stub before backfill
Completed connection on the August 2026 lateral replacement: the new pipe meets the existing line on shielded couplings, with a cleanout stub left accessible at grade.
Drain-cleaning equipment set up before line clearing
This image shows the equipment-prep stage of a drain-clearing job, where the line condition still needs to be confirmed before it is obvious whether cleaning alone will solve it.
Main sewer cleaning pricing (Toronto 2026)
| Service | Starting from | Typical range |
|---|---|---|
| Main line snaking from cleanout | $289 | $289 to $450 |
| Mainline + camera bundle | $350 | $350 to $700 |
| Mainline jetting | $450 | $450 to $900 |
| Root cutting (mainline) | $315 | $315 to $600 |
Ranges are for planning and triage. Final pricing depends on access, urgency, materials, and whether the visit stays isolated once the area is opened.
Cities Where This Service Is a Strong Fit
Related Services
- Drain Cleaning
Drain cleaning and repair in Toronto: we clear clogged sinks, tubs and main drains, then camera-check recurring backups so the fix lasts. From $139.
- Drain Repair
Drain repair in Toronto: cracked, root-filled & collapsed drains fixed by spot repair, CIPP relining or excavation. From $400. Call 647-784-8448.
- Hydro Jetting Services
Hydro jetting in Toronto & GTA for grease, sludge, scale, and root buildup in branch lines, kitchen drains, main sewer laterals, and commercial drains.
- Drain Camera Inspection
Drain camera inspection in Toronto from $180: see roots, bellies, offsets and breaks on video before you pay for any repair, with a recording you keep.
- Root Intrusion Removal
Tree root removal from sewer and drain lines in Toronto & GTA: mechanical cutting, jetting, foaming root treatment, and trenchless repair when roots keep
- Sewer Cleanout Installation
Sewer cleanout installation in Toronto from $650: interior & exterior access for cleaning, camera & inspection. Licensed & insured. Book online.
- Sewer Line Repair
Sewer line repair in Toronto from $2,400: the camera finds the offset, break or root joint and we fix that section instead of digging up the whole line.
- Trenchless Sewer Line Repair
Trenchless sewer line repair in Toronto without the full dig: CIPP lining & point repair for offsets, cracks & root joints. From $2,400. Call 647-784-8448.
- Trenchless Sewer Line Replacement
Trenchless sewer line replacement in Toronto & GTA: pipe bursting or full-length CIPP lining instead of open-cut digging, and how we choose between them.
- Sewer Line Replacement
Sewer line replacement in Toronto: collapsed, bellied or root-damaged pipe, camera-diagnosed. Trenchless or open-cut. Call 647-784-8448; 25-yr warranty.
- Sewer Line Rerouting
Sewer line rerouting in Toronto & GTA: redirecting a damaged or poorly placed lateral around obstacles, additions, or trees instead of repairing in place.
- Drain Basin Services
Outdoor drain cleaning in Toronto & GTA: catch basin cleaning, storm drain cleanout, yard and area drains, sump and ejector basin work, and basin replacement.
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- Drain Cleaning Cost in Toronto (2026): Honest Prices by Method
Drain cleaning cost in Toronto in 2026: $189 for a fixture snake, $350 to $650 for a main-line snake, $400 to $1,400 for jetting, and which one your clog needs.
- Drain Camera Inspection Cost in Toronto (2026): What the Price Actually Buys You
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- Hydro Jetting Cost in Toronto (2026): Real Prices, Real Pipe Conditions
What hydro jetting really costs in Toronto in 2026, $400 to $1,400 by line size and condition, and why it costs more than snaking but lasts longer.
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Licensed, insured, reviewed Toronto plumbers
- Serving Toronto & the GTA since 2015 — over 1,200 completed jobs.
- Master plumber T95-4969603 · Plumbing contractor T94-4992639 · Drain contractor T87-4722944 · Building renovator T85-4728632 · Plumbing license FI6216638.
- 4.9-star Google rating from 320+ reviews. 400+ HomeStars reviews (Best of 2019–2025). BBB-accredited.
- Same-day and after-hours dispatch across Toronto, Etobicoke, North York, Scarborough, York, Mississauga, and Burlington.
25-year workmanship warranty
Every job Tornado Plumbing & Drains completes in Toronto and the GTA — repair, install, replacement, drain work, sewer work, fixture work — is backed by a 25-year workmanship warranty. The written terms are provided with every quote. If our work fails within 25 years of the install date, we come back and make it right.
Why main line cleaning isn't the same job as snaking a drain
A branch-line snake reaches a few metres into one fixture's trap arm; clearing the main means feeding a heavy sectional or drum machine the full length of the lateral, often 15 to 30 metres, to the city connection. We match the cutter head to the lateral's diameter so the blade scrapes the full pipe wall instead of punching a small hole through a root ball, then re-cut on a second pass to widen the channel. On older clay or cast-iron laterals we follow the cutting with a camera inspection before calling the line clear.
Situations that call for a main line cleaning, not a fixture snake
- A drain company has already snaked the line two or three times and the backup keeps returning within months
- Every fixture in the house drains poorly at once, so the obstruction is past the branches on the shared lateral
- A real estate inspection flagged the main sewer as sluggish and you need it cleared and documented before closing
- You have mature trees over the sewer route and want the lateral cut back before roots fully block it
- A renovation added bathrooms or a kitchen and the original undersized lateral can no longer keep up with the load
- You have no main cleanout and previous service required pulling a toilet to reach the line
- City crews confirmed the blockage sits on the private side of the property line, which is the homeowner's responsibility to clear
What's included
- Locating and opening an accessible cleanout, or advising where one belongs if the home has none
- Running a mainline machine with the right cutter head for the lateral size to shear roots, scale, and the obstruction back to a flowing line
- Hydro-jetting where grease, sludge, or a heavy root mass needs the pipe wall scoured rather than just bored through
- A post-cleaning camera pass to confirm the main is genuinely open and to flag broken, bellied, or root-infested sections
- A flow test under load so the basement floor drain and lowest fixtures run free while upstairs fixtures discharge
- Cleanup of the cleanout area and a plain-language report on the line's condition and any repair we'd recommend
- Our written 25-year workmanship warranty on the cleaning work performed
Signs the main sewer line needs cleaning:
- Basement floor drain backing up.
- Toilet gurgling when other fixtures drain.
- Multiple fixtures slow at the same time.
- Wastewater coming up at the lowest fixture during laundry.
- Sewer odour throughout the lower level.
- Recurring backups after previous snaking.
What clogs a main sewer line
- Tree root intrusion at clay or cast-iron joints (most common in older Toronto homes).
- Grease and sludge buildup from kitchen drains.
- Heavy paper, wipes, or hygiene products.
- Scale and tuberculation in old cast iron mains.
- Sediment and debris settling in a bellied section.
- Storm-related sewer surcharge (city-side, not a clog).
Main sewer cleaning cost
Pricing depends on whether a cleanout is available, line length, the cause of the clog, and whether camera inspection follows. Cleaning from an accessible cleanout stays straightforward. Pulling a toilet to access the line, after-hours dispatch, or jetting on top of cabling pushes the price up.
When cleaning the main is not the right answer
Recurring main-line backups usually mean roots are entering at a damaged joint, the pipe has bellied, or a section has collapsed. Cleaning opens the line for now; the long-term fix is repair, lining, or replacement. Camera inspection after cleaning is what makes that decision honest.
What to share when you call
- Which fixtures backed up first.
- Whether the backup followed rain, laundry, or general use.
- Whether you have a main cleanout and where it is.
- Prior cleaning, snaking, or repair history on this line.
- Pipe material and approximate age if known.
- Whether you have ever had a sewer camera inspection.
Toronto context
Main sewer cleaning in Toronto is rarely just about the clog — it's about whether the line is recoverable. Mature trees over the sewer route, clay laterals connected to cast-iron stacks, and combined-sewer surcharge during heavy rain all show up in this work. We jet or cut what the camera says is sound, and document what's not.
What to confirm before approving main line work
- Cleaning should be followed by camera inspection on any recurring main-line problem.
- Roots cleared today need a follow-up plan, not silence until the next backup.
- If a cleanout is missing, installing one is usually a smart investment for future service.
Useful info on the call: which fixtures backed up first, rain timing, prior history, and cleanout availability.
Frequently asked questions
How do I know it is the main line and not just one fixture?
If multiple fixtures slow at the same time, if the basement floor drain backs up, or if running one fixture (laundry, shower) backs up another, the issue is downstream of the branches — on the main line.
Why does the main line clog every couple of years?
Usually roots growing back into the same joint or scale narrowing the pipe. Cleaning is temporary; lining, spot repair, or replacement is the long-term fix.
Should I get a backwater valve after a main-line backup?
If your backup happened during heavy rain, yes — it is sewer surcharge, not a clog. The City of Toronto subsidy program covers eligible backwater valve installations.
Do I need a cleanout?
Strongly recommended. Without a cleanout, every future cleaning is harder and may require pulling a toilet. Cleanout installation pays for itself within a few service calls in older homes.
Do you offer commercial sewer and drain cleaning?
Yes. We clean main sewer lines and building drains for commercial and multi-unit properties across Toronto and the GTA, including restaurants, plazas, and apartment buildings with grease-loaded or high-traffic lines. We snake or hydro jet from the cleanout and can follow up with a camera inspection to confirm the line is clear and document its condition.
Can you clean outdoor and exterior drains, not just the indoor main line?
Yes. We clear exterior and outdoor drains in Toronto, including yard drains, area drains, and the buried main sewer lateral that runs from the house to the city connection. If an outdoor drain keeps backing up, we can camera the line to locate roots, an offset, or a collapse and route you to the right fix on our camera inspection or sewer line repair pages.
Sewer Cleaning: real customer reviews
What customers say about our sewer cleaning work, in their own words, straight from their Google reviews.
Ian Persaud
July 2021“From initial contact to finished service, Serhiy was a pleasure to work with. I had a clogged drain in the basement, Serhiy came onsite, used a K-60 to unclog the main drain that leads to the street. He then ran a camera down to look for any further clogging. He also did the same service to the basement drain. Very satisfied with his customer satisfaction as he did not rush and tripled checked with the camera. So far, all looks good.”
Most relevant to Drain Cleaning in Toronto for Clogged, Slow, and Backing-Up Drains.
Google place photo: Tornado Plumbing & DrainsLuis Escobar
May 2021“I asked Tornado to come and inspect my main drain as it was constantly backing up and causing the house to smell like sewage. They came quickly and helped me identify the problem: roots inside the old clay pipe. Since the problem was really bad, they schedule the repair the very next day and finish the job without any issues in less than 2 days. During the job excavation, they identified the water supply line being lead (really bad for you) and recommended to do the replacement to 3/4" cooper. They offered me a generous discount since the excavation was already completed, so I took them up on the offer to replace both pipes at once. They completed the job without any issues and within the time previously agreed (less than 2 days), and all while having very little disturbances to our water and drain usage during the work. Overall great job!”
Most relevant to Drain & Sewer Services in Toronto & the GTA.
Google place photo: Tornado Plumbing & DrainsMarco Szablewski
June 2019“We want to finish our basement but in the spring when the snow was melting we discovered several leaks in our basement. Serhiy came out to look at our basement and also offered a free camera drain inspection. He provided a very reasonable quote for the waterproofing and a sump pump and went over all our options. With the camera inspection he discovered roots growing through our drain and we called the city to get it cleaned out (luckily it was in the city portion of the drain line). Serhiy did not pressure us into anything and waited patiently (2 months) for us to get back to him - which I appreciate a lot. I am not a fan of pushy sales people. His crew just completed the job and we are very satisfied with the results. They did a fabulous job and left everything clean and tidy. Thanks again!”
Most relevant to Drain Camera Inspection in Toronto & the GTA.
Google place photo: Tornado Plumbing & DrainsAuthoritative sources for this service
Public references — City of Toronto programs, federal guidelines, and standards bodies — used for the rules and figures cited on this page.
- NASSCO PACP — Pipeline Assessment Certification Program (sewer condition coding)(standard)
- Ontario Building Code — Part 7: Plumbing Services(regulator)
- City of Toronto — Combined sewers and basement flooding(city)
- City of Toronto — Priority Lead Water Service Replacement Program(city)
- City of Toronto — Basement Flooding Protection Subsidy Program(city)
- City of Toronto Sewer Use Bylaw — Chapter 681(city)
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If your situation could fit one of these adjacent services instead, open the page that matches more closely before you book.
Fast answers before you call
How do I know it is the main line and not just one fixture?
If multiple fixtures slow at the same time, if the basement floor drain backs up, or if running one fixture (laundry, shower) backs up another, the issue is downstream of...
Why does the main line clog every couple of years?
Usually roots growing back into the same joint or scale narrowing the pipe. Cleaning is temporary; lining, spot repair, or replacement is the long-term fix.
Should I get a backwater valve after a main-line backup?
If your backup happened during heavy rain, yes — it is sewer surcharge, not a clog. The City of Toronto subsidy program covers eligible backwater valve installations.
Do I need a cleanout?
Strongly recommended. Without a cleanout, every future cleaning is harder and may require pulling a toilet. Cleanout installation pays for itself within a few service calls in older homes.
Book Sewer Cleaning in Toronto: Main Sewer Line Snaking & Jetting today.
Tornado Plumbing & Drains handles Sewer Cleaning in Toronto: Main Sewer Line Snaking & Jetting across Toronto and the GTA. Call 647-784-8448 or book online for a clean diagnosis, written scope, and the 25-year workmanship warranty on every install and repair.