After the July 2024 storms, our phones did not stop for a week. Basement after basement in Toronto had the same story: water coming up through the floor, a sump pump that had quit years earlier, or no sump pump at all. The first question almost everyone asked once the water was gone was the same: how much does a sump pump cost, and do I actually need one?
Here is a straight answer from a licensed GTA plumbing team that installs and replaces sump pumps every week, including what drives the price, what the City of Toronto and other municipalities will pay back, and whether Ontario requires you to have one.
Sump Pump Cost in Ontario: The Quick Answer
These are typical ranges we see on residential jobs across Toronto and the GTA. Your exact price depends on the house, and you get it in writing before any work starts.
| Service | Typical range | What it includes |
|---|---|---|
| New sump pump installation | $1,500 to $2,500 | Cutting the floor, digging the pit, liner, pump and discharge line |
| Sump pump replacement | $600 to $1,200 | New pump in the existing pit and discharge line |
| Battery backup installation | $400 to $800 | Added to a new or existing pump |
| Sump pump repair | $200 to $500 | Diagnosis and repair, parts included |
| Full system with battery backup | $1,800 to $3,000 | New installation, complete system |
What Drives the Cost of a New Sump Pump Installation
Replacing a pump in an existing pit is a short, predictable job. A new installation is real construction, and these are the things that move the number:
- Your basement floor. An unfinished floor is the easy case. A finished basement means moving flooring, framing or a laundry setup, and patching it all afterward.
- Where the weeping tile is. The pit has to collect water from the foundation drainage. In some older Toronto homes the weeping tile is connected to the sewer and has to be cut and capped first, so the pump becomes the only path out.
- The discharge route. The water has to leave the house through the wall and drain away from the foundation. A short run out the back is simple. A long run, or one that has to go around a finished room, adds time.
- The pump itself. A cast iron submersible pump with a good float costs more than a plastic pedestal pump, and lasts longer. For most GTA basements, we recommend a submersible.
- Alarms and backup. A high-water alarm and a battery backup add to the cost, and they are what save you when the main pump fails.
Replace It Before It Fails
Most sump pumps last roughly seven to ten years, and they almost never fail on a quiet sunny day. They fail during the storm, when the pump is running non-stop and the power flickers. These are the signs we tell homeowners to watch for:
- The pump runs constantly, or turns on and off every few seconds
- It hums but no water moves, or it is noticeably louder than it used to be
- Rust, corrosion or a stuck float switch
- Water staying in the pit after the pump shuts off
- You cannot remember when it was installed
Pour a bucket of water into the pit every spring and fall. If the pump does not kick on and empty it quickly, call us before the next big rain. Our sump pump installation and replacement service covers new pits, replacements and battery backups across Toronto and the GTA.
Why a Battery Backup Is Worth It
The storms that fill your sump pit are the same storms that knock out the power. A battery backup pump sits in the same pit and takes over automatically when the main pump loses power or fails. At $400 to $800 installed, it costs a fraction of one flooded basement, and the City of Toronto now subsidizes it.
Are Sump Pumps Mandatory in Ontario?
Not for every home. The Ontario Building Code requires foundation drainage to go somewhere it can safely drain, such as a storm sewer, a ditch or a dry well. Where that cannot happen by gravity, the water has to be pumped out, which is where a sump pit and pump come in. That is why most newer subdivisions across the GTA were built with sump pumps from day one, while many older homes in Toronto were not.
So if your house was built without one, you are not breaking the rules. But if you have had water in the basement, if your weeping tile is connected to the sewer, or if your municipality is asking homeowners to disconnect it, a sump pump stops being optional in practice. It is also part of what most flood subsidy programs pay for.
Sump Pump Subsidies in Toronto and the GTA
This is where most homeowners leave money on the table. Programs change, so we confirm the current rules with you before you book, but here is how they stand right now:
- City of Toronto. The Basement Flooding Protection Subsidy Program now pays up to $6,650 per property for work completed on or after November 12, 2025. That includes up to $2,250 for a sump pump, up to $300 for a battery backup, up to $400 for severing and capping the weeping tile connection, up to $1,600 per backwater valve (two maximum), and up to $500 for a Home Plumbing Assessment. Each item is capped at 80% of its cost, and you have two years after the work to apply.
- Halton Region (Oakville, Burlington, Milton, Halton Hills). Halton has covered weeping tile disconnection with a sump pump at 100% of eligible costs, up to $6,500, when the work is done by a contractor on Halton’s approved list. See our Oakville plumber page for details.
- Other GTA cities. Rules vary a lot. Richmond Hill, for example, subsidizes backwater valves but not sump pumps. Tell us your address and we will tell you what applies.
For a Toronto subsidy, the paperwork is as important as the pump. We pull the permit where one is needed, do the work, and give you the itemized invoice and photos the application asks for.
Where Should the Water Go?
A sump pump that dumps water right beside the foundation just pumps the same water around in a circle. The discharge should run far enough from the house that the ground slopes it away, onto your own property and not onto a neighbour’s yard, the sidewalk or the driveway, where it turns into a sheet of ice in January. In winter, make sure the outside end of the discharge line cannot freeze shut.
Frequently Asked Questions
How much does it cost to install a sump pump in Ontario?
A new sump pump installation in the Toronto area typically costs $1,500 to $2,500, including the pit, pump and discharge line. A complete system with a battery backup runs about $1,800 to $3,000.
How much does it cost to replace a sump pump?
Replacing a sump pump in an existing pit usually costs $600 to $1,200, depending on the pump and the condition of the discharge line.
Are sump pumps mandatory in Ontario?
Not in every home. The Ontario Building Code requires foundation drainage to drain safely, and a sump pump is needed where water cannot drain by gravity. Most newer GTA homes have one, many older Toronto homes do not.
Does the City of Toronto pay for sump pumps?
Yes. Eligible homeowners can get up to $2,250 for a sump pump and up to $300 for a battery backup, as part of a total of up to $6,650 per property, capped at 80% of the cost of each item.
How long does a sump pump last?
Most sump pumps last roughly seven to ten years. Test yours every spring and fall by pouring water into the pit, and replace it before it fails during a storm.
Get a Written Sump Pump Quote
Rooter Brothers is a licensed, family-owned team of drain, sewer and plumbing specialists serving Toronto and the GTA. If you are dealing with water coming up the floor drain, start with our guide to sewer backups, and if water is coming through the walls, our basement waterproofing team can help. Call (647) 449-5665 any time. A real person answers, and you get a written price before we start.