Licensed Toronto plumbing contractor. Final rebate approval is handled by the City of Toronto.
The City of Toronto has expanded the Basement Flooding Protection Subsidy Program effective May 1, 2026. Homeowners who completed eligible work on or after November 12, 2025 may apply for the enhanced subsidy amounts.
Heavy summer storms and rapid snowmelt can overload Toronto’s aging sewers, forcing contaminated water back through floor drains and foundation cracks. The City’s Basement Flooding Protection Subsidy Program offers homeowners up to $3,400 per property to install proven defences such as backwater valves, sump pumps and external weeping-tile disconnects. As a City-approved plumbing contractor, Anta Plumbing manages every step—permit application, installation, final inspection and rebate paperwork—so you capture the full subsidy while keeping your basement safe and dry. Book a free on-site assessment today and secure your funding before the next storm hits.
The Basement Flooding Protection Subsidy Program helps eligible Toronto residential property owners install flood protection measures that reduce the risk of sewer backups and basement flooding during heavy storms.
| 2026 Toronto Basement Flooding Rebate Amounts | |
|---|---|
| Home Plumbing Assessment | Up to $500 |
| Two Backwater Valves maximum | Up to $1,600 per device |
| Sump Pump | Up to $2,250 |
| Sump Pump Battery Backup Power | Up to $300 |
| Foundation Drain / Weeping Tile Pipe Severance & Capping | Up to $400 |
| Total Maximum Potential | Up to $6,650 |
The City will reimburse 80 percent of your plumbing invoice—up to the caps below—when you hire a licensed contractor like Anta Plumbing to install flood-prevention devices:
Totals are set by the City of Toronto Basement Flooding Protection Subsidy Program and may change, so book your assessment early to lock in today’s rates.
Available subsidy = up to 80% of invoiced costs, up to $1,600 per device for a maximum of two backwater valves, including eligible labour, materials, permits and taxes.
Available subsidy = up to 80% of invoiced costs, up to a maximum of $2,250 including eligible labour, materials and taxes.
Maintain sump pump operation during power outages with dependable battery backup systems. Available subsidy up to $300.
Improve drainage performance and address sewer-related issues contributing to basement flooding.
Receive professional assessments to help identify qualifying flood protection improvements. Available subsidy up to $500 for eligible plumbing assessments.
Customized flood prevention strategies tailored to your home's plumbing and drainage system.
Available subsidy =80% of the invoices cost up to a maximum of $1,250 including eligible labour, materials, permit and taxes.
Available subsidy =80% of the invoiced cost up to a maximum of $1,750 including eligible labour, materials and taxes.
Available subsidy =80% of the invoiced cost up to a maximum of $2,800 including eligible labour, materials and taxes.
Available subsidy = a maximum of $400 including eligible labour, materials and taxes.
Most eligible Toronto residential properties may qualify for the Basement Flooding Protection Subsidy Program if:
Our team helps homeowners through the full process, including inspections, permit coordination, rebate-ready installations, and assistance with required documentation.
A backwater valve, also called a backflow valve, is a one-way gate that lets household wastewater exit while blocking city sewage from surging back through your drains during heavy rain or sewer overloads. Installing one protects your basement from contaminated floodwater, avoids costly restoration, and safeguards your family’s health.
ANTA Plumbing has the solution to any of your drain issues, whether it is roots in drains, sewer backup, blocked drain, floor drain, sump pump problems, or whatever plumbing service you require. We offer the following drain services
New construction. Back Water Valve must be installed. Toronto Plumbing Code makes a valve mandatory on any new build that has fixtures below grade.
Existing homes. If any plumbing fixture sits lower than the top of the first upstream sanitary sewer manhole on your street, a valve is required for code compliance and for eligibility under the Toronto Basement Flooding Subsidy Program (up to $1,250 back).
Home A – All fixtures are above the upstream manhole, so a valve is not required.
Home B – Main-floor fixtures are safe, but a planned basement bathroom will be 24 inches below the manhole. Install a valve before finishing the basement.
Home C – Existing basement drains are already below manhole level. A valve is essential to prevent sewage surges.
Inspection and assessment – We inspect your drainage system, review flood risks, and identify eligible flood protection upgrades that may qualify under the Toronto Basement Flooding Protection Subsidy Program.
Installation and plumbing work – Our licensed plumbing team completes eligible flood protection installations including backwater valves, sump pumps, battery backup systems, and related drainage improvements.
Permit and inspection coordination – We help coordinate required permits and inspections where applicable to ensure installations meet current City and plumbing code requirements.
Rebate documentation support – Our team assists with rebate-ready documentation including invoices, permits, photos, and supporting paperwork required for City rebate applications. Eligible homeowners may recover up to 80% of approved costs with a total potential subsidy of up to $6,650.
Not sure which flood protection upgrades your home may need?
Schedule an on-site assessment with ANTA Plumbing. Our team can inspect your drainage system, identify potential flood risks, and recommend solutions that may qualify for Toronto rebate programs.
A backwater valve is installed on the main sanitary sewer lateral that runs beneath your basement floor, usually close to the foundation wall where the line exits toward the street. The valve is placed in a short, accessible length of PVC or ABS pipe so an inspector can lift the cover, check the gate and perform maintenance without breaking concrete.
How it works
Inside the housing is a hinged flap with buoyant floats. During normal flow the flap rests open, letting wastewater leave the house. If a storm surge or blocked city sewer forces water back toward the property, rising pressure lifts the flap until it seals against a rubber gasket. This one-way action stops contaminated water from reaching basement fixtures, a critical safeguard for basement flooding in Toronto’s older neighbourhoods.
Eligible flood protection installations completed under the Toronto Basement Flooding Protection Subsidy Program must meet applicable plumbing code requirements and pass inspections where required. Using certified flood protection devices and licensed plumbing installation helps homeowners qualify for available City rebates.
Eligible homeowners may recover up to 80% of approved costs based on current City subsidy limits and qualifying work categories.
ANTA Plumbing Inc. is a licensed Toronto plumbing company experienced in flood prevention solutions, backwater valve installations, sump pump systems, and rebate-ready plumbing work completed to current City and plumbing code requirements.
Learn more about the City of Toronto Basement Flooding Protection Subsidy Program and available rebates for eligible flood protection upgrades. Toronto homeowners may qualify for subsidies covering up to 80% of eligible costs, with a total maximum potential rebate of up to $6,650 for approved flood prevention improvements including backwater valves, sump pumps, battery backup systems, plumbing assessments, and foundation drain severance work.
A sump pump helps protect your basement from flooding by collecting and redirecting groundwater away from your home. When heavy rainfall, snow melt, or rising groundwater fills the sump pit, the pump automatically removes water through a discharge pipe to a safe drainage location. Sump pump systems are one of the most effective flood prevention upgrades for Toronto homeowners and may qualify for rebates under the City of Toronto Basement Flooding Protection Subsidy Program.
When sump pump installation may be recommended
Homes that have experienced basement flooding, seepage, or persistent dampness
Properties located near or below the local water table
Homes with recurring groundwater accumulation during heavy rainfall
Battery backup systems may also qualify for additional rebates of up to $300.
Key installation points
Correct pit size and location—At the footing’s low spot, lined with a perforated basin to collect lateral groundwater.
Dedicated discharge line—Pumped water must exit to a storm system or dry well, never the sanitary sewer, to stay within Toronto Plumbing Code.
Backflow preventer on the discharge—Stops outside water or debris from reversing into the pit and burning out the motor.
Check valve—Prevents pumped water from falling back and short-cycling the unit.
GFCI-protected outlet and battery backup—Keeps the pump running during power outages when downpours are most likely.
Maintenance tips
Test the float switch every six months by pouring a bucket of water into the pit.
Clear silt or gravel from the basin to maintain pump efficiency.
Replace the backup battery every three to five years or as the manufacturer recommends.
By pairing a properly sized sump pump with a CSA-approved backwater valve, you satisfy subsidy requirements, meet Ontario code, and give your Toronto basement the strongest defence against floodwater and sewage backup.
When you hire Anta Plumbing, you’re protected by our Service Satisfaction Guarantee: if you’re not completely happy, we’ll send a licensed master plumber back, free of charge, to put things right. That’s how we’ve kept Toronto drains flowing and water heaters humming for 21 years.
Call our team of plumbers in Toronto right now at (416) 231-3331.
Eligible homeowners may receive up to 80% of the cost, with a total maximum potential subsidy of up to $6,650.
The expanded program is effective May 1, 2026. Eligible work completed on or after November 12, 2025 may qualify.
Yes. The updated program includes up to $1,600 per device for up to two backwater valves.
Yes. The updated subsidy includes up to $2,250 for a sump pump and up to $300 for sump pump battery backup power.
The City of Toronto reviews applications and makes the final approval decision.
Book an inspection with ANTA Plumbing and learn which flood protection upgrades may qualify for Toronto rebates.
