Every drain in your home eventually connects to one main line that carries wastewater to the city sewer. When that line becomes restricted, the symptoms show up all over the house: the basement floor drain backs up when the washing machine empties, or the toilet gurgles when someone runs a bath.
Main drain blockages aren't something to plunge your way out of. Scarborough Drain clears main lines for homes and small buildings across Scarborough, and helps you understand whether the blockage is a one-time event or part of a bigger issue.
Signs of a main drain blockage
- Several fixtures draining slowly at the same time
- Water appearing at the basement floor drain
- Toilets bubbling when a sink or tub drains
- Sewage odour in the basement
- Backups that happen during laundry or heavy water use
Common causes
Main lines collect everything that goes down every drain in the house. Over time, grease, wipes, paper products and sediment build up. In older lines, tree roots can enter through joints, and sagging or cracked sections can catch debris. Each of these causes needs a slightly different response.
How main drain cleaning works
The main line is usually accessed through a cleanout, often in the basement near the front wall of the house. We clear the blockage and restore flow, then talk with you about what we found. If the blockage contained roots, pipe fragments or repeated buildup, we may recommend a camera inspection to check the condition of the line.
What to do while you wait
- Stop using water: no showers, laundry, dishwasher or flushing
- Keep children and pets away from any wastewater
- Move belongings away from the floor drain if water is rising
- Don't open the cleanout cap yourself; pressure can release wastewater
When a professional inspection may be needed
If your main drain needs clearing more than once a year, or the blockage keeps returning in the same spot, there may be a structural problem such as roots, a sag or a crack. A camera inspection shows the inside of the line so you can make an informed decision.
Main Drain Cleaning in Scarborough
Many Scarborough neighbourhoods were developed in the 1950s through 1970s, and homes from that era may still have their original main drain lines. Mature trees on residential streets can also contribute to root intrusion. We take these factors into account when assessing a recurring main drain problem.
See the full list of neighbourhoods on our Scarborough service area page, or contact us to request service.
Related services
Drain problems are often connected. You may also find these helpful: main drain repair, drain camera inspection and sewer backup service.
Frequently asked questions
Where is my main drain cleanout?
In most Scarborough homes it's in the basement, often along the front wall or near the floor drain. We can help you locate it.
Is a main drain backup an emergency?
If wastewater is entering your basement, treat it as urgent. Stop using water and call us 24/7 at (289) 277-9756.
How often should a main drain be cleaned?
There's no fixed schedule. Homes with recurring issues may benefit from periodic maintenance; others may never need it.
Will cleaning fix a broken pipe?
No. Cleaning restores flow, but a cracked or collapsed pipe needs a repair assessment. We'll tell you if we suspect damage.