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Sewage in your basement floor drain? 24/7 sewer backup service in Toronto: clearing, camera inspection, repairs and backwater valves. Call (905) 625-8777.
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Sewer Backup in Basement: 24/7 Help in Toronto

Sewage coming up through the basement floor drain is one of the worst things a homeowner can face. It is a health hazard, it damages floors, walls and belongings, and it usually happens at the worst time, during a storm or a holiday. There are two very different causes: a blockage in your own sewer line, or the city sewer overloading and pushing water back into your home.

POM Plumbing responds 24/7 to sewer backups across Toronto and the GTA. We clear the line, camera-inspect it to find the cause, and fix it so it does not happen again, whether that means root cutting, a pipe repair or a backwater valve.

    Is It Your Line or the City Sewer?

    ClueLikely a blockage in your lineLikely city sewer surcharge
    WeatherAny time, even on dry daysDuring or after heavy rain
    TriggerHappens when you use waterWater rises without using fixtures
    NeighboursOnly your homeSeveral homes on the street
    FixDrain cleaning and repairBackwater valve

    Common Causes of Sewer Backups

    • Tree roots in clay or cast iron sewer lines
    • Grease and wipes blocking the main line
    • Collapsed or sagging pipe
    • City sewer overload in storms
    • Weeping tile connected to the sewer
    • No backwater valve in the main line
    Need it fixed now? Talk to a licensed Toronto plumber — call and get a clear price before any work starts.
    Call (905) 625-8777

    What to Do During a Sewer Backup

    1. Stop using water. Don’t flush, shower or run appliances.
    2. Stay safe. Keep away from sewage and electrical outlets in wet areas.
    3. Call a plumber. We clear the line and find the cause.
    4. Document. Take photos and video for insurance.
    5. Clean up safely. Sewage-soaked materials usually need removal and disinfection.

    Who Pays for a Sewer Backup?

    In Toronto the homeowner is generally responsible for the sewer connection on private property, while the City is responsible for the part under the road allowance and the city sewer. Damage is usually a home insurance matter, and sewer backup often requires a specific endorsement. A camera inspection helps show where the problem is.

    How to Prevent Sewer Backups

    01

    Backwater Valve

    Stops city sewer water from entering the house.

    02

    Regular Sewer Cleaning

    Keeps roots and grease under control.

    03

    Sewer Repair or Relining

    Fixes the damaged pipe permanently.

    04

    Weeping Tile Disconnection

    Removes groundwater from the sewer with a sump pump.

    Toronto Subsidy for Backup Prevention

    The City of Toronto Basement Flooding Protection Subsidy offers up to $6,650 per eligible property, including up to $1,600 per backwater valve. See our subsidy guide.

    Sewer Backup Repair Cost

    Typical Toronto prices before tax.

    ServiceTypical cost
    Emergency sewer backup clearing$300 – $650
    Camera inspection$150 – $450
    Root cutting and jetting$350 – $900
    Backwater valve installation$1,800 – $3,500
    Sewer spot repair$2,500 – $6,000
    • 24/7 emergency response
    • Camera diagnosis of the real cause
    • Permanent fixes not just quick clears
    • Insurance documentation

    Why Choose Us?

    • Fully Licenced And Insured

      With our company, you can be assured that we are fully licensed and insured to work on your plumbing and sanitation systems, providing you with the peace of mind you deserve.

    • Best Warranty In The Market

      We stand behind our work and offer the best warranty in the market. This means that you can be confident in our repairs, and if anything goes wrong, we'll be there to make it right.

    • Over 20 Years In Business

      We have over 20 years of experience in the plumbing industry, which means that we have seen it all. Our knowledge and expertise allow us to provide top-notch service to our clients every time.

    • Affordable Pricing

      We understand that plumbing repairs can be costly, which is why we offer affordable pricing without sacrificing the quality of our work. When you choose us, you can get the repairs you need at a price you can afford.

    Sewer Backup FAQ

    • Why is sewage coming up through my basement floor drain?

      Either your sewer line is blocked or the city sewer is overloaded and flowing back. Both are emergencies.

    • What should I do during a sewer backup?

      Stop using water, stay away from sewage and electrical hazards, take photos and call a plumber.

    • Is a sewer backup an emergency?

      Yes. Sewage is a health hazard and damage gets worse quickly.

    • Who is responsible for a sewer backup in Toronto?

      The homeowner is generally responsible for the private-side connection and the City for the city-side portion and sewer.

    • Does home insurance cover sewer backup?

      Often only with a sewer backup endorsement. Check your policy.

    • How can I stop sewer backups from happening again?

      Install a backwater valve, repair damaged pipe and keep the line clean.

    • How much does it cost to clear a sewer backup?

      Typically $300 to $650 for the clearing, plus camera inspection or repairs if needed.

    • Does the City help pay for prevention?

      Yes. The Basement Flooding Protection Subsidy can cover up to $1,600 per backwater valve.

    • Can I clean up sewage myself?

      It is not recommended. Sewage contains bacteria and porous materials usually must be removed.

    What Our Customers Say

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