Your sewer line carries everything from every drain in the house out to the municipal sewer. When it starts to narrow — from grease, scale, roots or settled debris — the whole house feels it: slow drains, gurgling fixtures and eventually a backup. Professional sewer line cleaning restores the full diameter of the pipe and is often the difference between a routine visit and an emergency call.
In Markham, the age of the neighbourhood tells us a lot before we even arrive. Older areas like Unionville, Markham Village and Thornhill often have clay or cast-iron laterals with decades of buildup and root intrusion, while newer subdivisions in Cornell, Wismer and Box Grove more often deal with grease and the occasional sag from soil settlement. We choose the cleaning method that suits your pipe material and condition.
Sewer Line Cleaning Around Markham
In Markham's older neighbourhoods — Unionville, Markham Village, Thornhill — sewer laterals are often clay with joints that have loosened over the decades. Roots from the mature trees that line these streets find their way in, and periodic cleaning becomes part of owning the home. If your house is on a tree-lined street and the line has never been cameraed, that's the place to start.
Newer subdivisions like Cornell, Wismer and Box Grove have plastic laterals that resist roots, but they aren't immune: construction debris left in lines, kitchen grease and soil settlement sags all show up. Wherever your home sits, a camera before cleaning means we use the method your pipe can actually take.
Signs You Need Sewer Line Cleaning
A sewer line rarely blocks all at once. Watch for these early warnings:
- Multiple slow drains at once. One slow sink is usually a local clog. When the tub, toilet and floor drain all slow down together, the restriction is in the main line.
- Gurgling from fixtures you aren't using. Air trapped by a partial blockage escapes through the nearest fixture. A toilet that bubbles when the washer drains is a classic sign.
- Water at the basement floor drain. The floor drain is the lowest point in the house. Water appearing there, especially during laundry or showers, means the main line is struggling.
- Sewage odours in the basement. A partially blocked line can push sewer gas back through traps, especially in dry floor drains.
- Backups after heavy rain. Storm water entering an overloaded system finds the weak spots. If your line is already narrowed, a storm can tip it over the edge.
- Repeat clogs in the same line. If you've had the main line snaked more than once in a couple of years, cleaning the pipe walls properly is usually the lasting fix.
How We Do It
- 1
Assess the symptoms
We ask which fixtures are affected and when the trouble started, then check the basement floor drain and cleanout to confirm the main line is the culprit.
- 2
Camera inspection first
Before cleaning, we run a camera down the line to see what we're dealing with: roots, scale, grease or a sag. This tells us which cleaning method is safe and effective for your pipe.
- 3
Choose the cleaning method
For roots and heavy buildup we use mechanical cutting heads sized to your pipe. For grease and sludge, hydro jetting scours the full diameter of the pipe wall clean.
- 4
Clean the full length
We work the line from the cleanout to the municipal connection, not just the first few feet where the blockage showed up.
- 5
Verify with the camera
After cleaning, we run the camera again so you can see the result and we can confirm nothing was missed.
- 6
Report and recommendations
You get a clear summary of the pipe's condition, plus honest advice on whether any repairs or a maintenance schedule make sense.
Why Choose Markham Plumbing
Sewer cleaning is only as good as the diagnosis behind it. We never clean blind.
- Camera before and after, so you see the problem and the result
- The right method for your pipe: auger, root cutting or hydro jetting
- Upfront pricing before any work begins
- Honest advice on repair versus maintenance — no pressure
- Clean, careful work in finished basements
- Available 24/7 when a slow line turns into a backup
Sewer Line Cleaning FAQs
How often should a sewer line be cleaned?
It depends on the pipe and what's in it. Homes with mature trees over the line or older clay pipes often benefit from cleaning every one to two years. Newer plastic lines may go many years without needing it. A camera inspection tells you which situation you're in.
Is snaking enough, or do I need hydro jetting?
Snaking punches a hole through a blockage and restores flow, which is often all you need for a simple clog. Jetting scours the pipe walls and is better for grease, scale and recurring problems. We recommend based on what the camera shows, not on which service costs more.
Can cleaning damage an old pipe?
Yes, if it's done carelessly. That's why we inspect first. A fragile or cracked pipe gets a gentler approach, and if cleaning isn't safe, we'll tell you and discuss repair options instead.
Will cleaning fix a sewer smell in my basement?
Sometimes. If the smell comes from a dry floor drain trap, pouring water in fixes it for free. If it comes from a partial blockage or a crack, cleaning or repair is needed. We check the simple causes first.
Do you clean the line all the way to the city sewer?
Yes. We clean the full length of your private lateral, from the house to the property line connection where your responsibility ends.