Sump Pump Installation & Repair in Toronto
Updated August 18, 2026
A sump pump sits in the lowest part of your basement, submerged in a pit, and pumps water out through a discharge pipe. City Rooter installs, replaces, and services primary and battery-backup pumps across Toronto and the GTA to reduce basement flooding risk.
- Water collecting in the basement pit
- Pump that no longer turns on
- No battery backup for storm outages
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Sump pump installation and repair in Toronto
A sump pump sits in the lowest part of the basement and moves groundwater out through a discharge pipe. When the pump, float, or power fails during a storm, the basement is the first room to flood.
We install, replace, and service primary pumps and battery backups across Toronto and the GTA. We size the pump to the pit and confirm the discharge path before we leave.
This is groundwater protection. It is not a sewage valve. If your last flood was brown water from a floor drain, you need a backwater valve conversation, not only a new pump.
Signs the pump is failing
A pump that never runs in a wet season is as worrying as one that never stops. Listen for short cycling — on and off every few seconds. That often means a bad check valve or a pit that is too small for the inflow. A burning smell, a tripped breaker, or a pit that overflows while the pump sits silent are replace-now signals.
- Water in the basement after rain or thaw
- The pump does not start when the pit fills
- Constant running or rapid on-off cycling
- A failed float or a seized impeller
- No battery backup on a finished basement
Why a backup pump matters
Power often fails in the same storm that fills the pit. A battery backup keeps water moving when the main pump cannot. A sump pump does not stop city sewage from coming back up the drain — that is a backwater valve.
If the basement is finished, treat the backup as part of the install, not an accessory. The cost of a backup is small next to drywall, flooring, and a week of dehumidifiers.
How we install a sump pump
We confirm there is a pit, or we cut and set one where the water actually collects. We size the pump to the inflow, set a check valve so water does not run back, and run the discharge to a legal exit — not into a neighbour’s yard and not back into the sanitary drain.
We test the float with water, confirm the backup if you have one, and show you how to test it yourself. A pump you never test will fail on the night you need it.
Repair versus replacement
A stuck float or a failed check valve can be a repair. A pump that is 10 years old, rusted, or already flooded the room once should be replaced. We will say which. There is no prize for nursing a dying pump through another spring.
Call (647) 534-6875 if the pit is rising and the pump is quiet. If water is already on the floor, shut power to the pump only if it is safe — standing water and live power are a bad mix. We can often come the same day.
Sump pump and backwater valve together
Groundwater comes up through the floor and the pit. Sewage comes back through the drain when the city line is surcharged. One device does not do both jobs. We will tell you which flood you had if you can describe the water. Clear groundwater points at the sump. Sewage smell and floor-drain backup point at the valve.
Maintenance after installation
Pour a bucket of water in the pit twice a year and watch the pump start. If it does not, replace it before the next storm. Keep the discharge clear of snow, leaves, and a frozen exit in January. A pump that cannot push water out will fill the basement even if the motor is new.
Battery backups need the battery checked. A dead battery is a decoration. We can test both pumps on a service visit. If you have a finished basement and no backup, add one when we replace the primary. Doing it later means opening the pit twice.
City rebate and subsidy rules for flood protection change. Current amounts for Toronto, Peel, Mississauga, Vaughan, Markham, and Halton are on our GTA rebates page. We do not process municipal applications. The pump still has to be sized and discharged correctly whether a rebate exists or not.
Where the water should go
Discharge must exit the house to a legal point — a storm connection or an approved grade — not back into the sanitary drain and not onto a neighbour’s walk. A frozen or buried discharge is a common reason a new pump still floods the room. We check that path on every install.
Many GTA cities pay part of this work. See current amounts on our plumbing and flood protection rebates page.
Need sump pump installation in Toronto?
Licensed, insured, WSIB-covered technicians. We answer live and typically reply to quotes in 5–10 minutes.
Our process
Step 1
Diagnose
Check the pit, float, discharge, and power, including backup battery.
Step 2
Install or replace
Set the correct pump size and a reliable discharge path.
Step 3
Test
We run the pump and confirm it keeps the pit clear.
Reviews
Only 5-star reviews from GTA homeowners
★★★★★
Alex and his team replaced our main drain and broken pipes. He provided great service and workmanship, at reasonable prices. Highly recommend.
★★★★★
City Rooter installed a new waterline from the edge of the property into my basement. Alex worked with me to get the best solution possible, gave a very good price, and left everything neat and tidy.
★★★★★
They saved us from a major plumbing disaster. Tree roots clogged the drain. The team snaked the line, excavated, replaced the damaged pipe, and installed a cleanout. Professional, efficient, and fair.
Frequently asked questions
Do I need a sump pump in a Toronto basement?
You need one if groundwater collects in a pit or seeps through the floor during rain or spring thaw. A sump pump moves that water out. It does not stop city sewage from coming back up a drain. That is a backwater valve. Many homes need both.
How long does a sump pump last?
A well-maintained primary pump often lasts 7 to 10 years. Floats and check valves fail sooner. If the pump runs constantly, cycles every few seconds, or did not start in the last storm, replace it before the next one. City Rooter can install a primary and a battery backup on the same visit.
Can you install a sump pump in a finished basement?
Yes. We need a pit, a discharge path, and power. In a finished space we plan the cut, the discharge, and the restoration so you know what will be opened. A battery backup is worth adding if the room is finished — power often fails in the same storm that fills the pit.
Related services
Need a plumber now?
Licensed, insured, WSIB-covered technicians. We answer live and typically reply to quotes in 5–10 minutes.