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If your basement has ever flooded — or if you’ve watched storm drains overflow on your street and held your breath — you already know the anxiety that comes with Ontario’s increasingly severe weather. What you may not know is that you don’t have to cover the full cost of protecting your home on your own.
Across the Greater Toronto Area and surrounding Ontario municipalities, active rebate programs are available right now to help homeowners offset the cost of sump pumps, backwater valves, and related basement waterproofing upgrades. Depending on where you live, you could recover thousands of dollars on installations that protect your home, your health, and your investment.
This guide covers every active Ontario rebate program for 2026 — who qualifies, how much you can get, and exactly what you need to do to claim it.
Ontario’s aging combined sewer systems were designed for rainfall levels that no longer reflect reality. Storm events that once happened once a decade are now arriving multiple times a year, pushing city mains to their limits and sending water where it doesn’t belong — into your basement.
Following the severe storms of 2024 that flooded more than 1,000 Toronto homes alone, municipalities across the province took a hard look at what they could do to help homeowners protect themselves. The answer, in most cases, was money.
These subsidy programs exist because flood damage is expensive for everyone — homeowners, insurers, and municipalities. The average basement flood in Canada costs between $40,000 and $80,000 in total damage. Installing a sump pump and backwater valve costs a fraction of that — and pairing them with interior waterproofing or exterior waterproofing gives your home comprehensive, layered protection. When you protect your home, you’re also reducing the burden on emergency services, the insurance system, and municipal infrastructure.
The programs below are currently active. Funding in all cases is first-come, first-served, so acting early in the calendar year is strongly recommended.
⚠️ Important: Rebate eligibility, amounts, and requirements can change. Always confirm current program details directly with your municipality before starting any work. All installations must be completed by a licensed plumbing or drain contractor to qualify for reimbursement.
Toronto’s BFPSP is the most established flood protection rebate program in Ontario, running continuously since 2007. As of May 1, 2026, the City significantly expanded the program — nearly doubling the maximum per-property subsidy following the severe flooding events of 2024 that impacted over 1,000 homes.
Current Maximum Subsidy: Up to $6,650 per property (Applies to eligible work completed on or after November 12, 2025)
| Eligible Installation | Reimbursement Rate | Maximum Subsidy |
|---|---|---|
| Backwater valve + alarm (up to 2 devices) | Up to 80% of invoiced cost | Up to $1,600 per device |
| Sump pump + alarm + battery backup | Up to 80% of invoiced cost | Up to $1,750 |
| Foundation drain severance & capping | Up to 80% of invoiced cost | Up to $400 |
| Sump pump battery backup (standalone) | Up to 80% of invoiced cost | Up to $300 |
| Home plumbing assessment (new in 2026) | Up to 80% of invoiced cost | Up to $500 |
Key eligibility requirements:
📎 Program details: toronto.ca/BFPsubsidy
Peel Region offers a rebate program specifically covering the installation of sanitary backwater valves. This program applies to the sanitary sewer lateral connection — homeowners with backwater valves connected to a storm lateral should check with the City of Mississauga’s separate program.
Maximum Subsidy: Up to $1,500 (including tax)
| Eligible Installation | Reimbursement Rate | Maximum Subsidy |
|---|---|---|
| Sanitary backwater valve | 60% of invoiced cost | Up to $1,500 incl. tax |
Key eligibility requirements:
📎 Program details: peelregion.ca/water/pipes-downspouts/backwater-valve-rebate
Vaughan’s program helps homeowners in existing residential properties offset the cost of a backwater valve installation. New homes under construction are not eligible.
Maximum Subsidy: Up to $750 (including labour, materials, permit fees & taxes)
| Eligible Installation | Reimbursement Rate | Maximum Subsidy |
|---|---|---|
| Backwater valve | 50% of invoiced cost | Up to $750 all-in |
Key eligibility requirements:
📎 Program details: vaughan.ca – Sanitary Back-Water Valve
Markham’s program is one of the most comprehensive in the GTA, covering multiple flood protection measures. The program has been extended through April 2027, giving homeowners in eligible areas an extended window to apply.
Covered installations:
| Eligible Installation | Requirements |
|---|---|
| Backwater valve | Pre-approval + building permit + City inspection |
| Sump pump (with weeping tile disconnection) | Pre-approval + building permit + City inspection |
| Sanitary & storm lateral relining and repair | CCTV inspection required |
Key eligibility requirements:
⚠️ Markham applicants: The pre-approval step is non-negotiable. Work started before receiving written approval from the City will not qualify for reimbursement. Contact Markham’s Environmental Services Department before booking any contractor.
📎 Contact Markham’s Environmental Services Department for current application details.
1. Install both devices together. Most programs offer separate rebates for sump pumps and backwater valves. Combining both installations in a single project maximizes your total reimbursement and typically reduces labour costs compared to scheduling two separate visits.
2. Act early in the year. Every program on this list operates on a first-come, first-served basis. Funding runs out. The homeowners who apply in the first half of the year are far more likely to receive their rebate than those who apply in the fall after a summer storm prompts everyone to act at once.
3. Hire the right contractor. Every program requires a licensed, qualified contractor — and many require a contractor licensed in a specific jurisdiction (not just any plumber). Confirm your contractor’s licensing before signing anything. Working with an unlicensed contractor is the most common reason applications are rejected.
4. Get your permit first. Several programs — especially Markham and Vaughan — require permits to be obtained before work begins, not after. Don’t let an eager contractor skip this step. No permit, no rebate.
5. Keep everything. Your rebate application will require: the original invoice (itemized, with labour and materials separated), permit documentation, inspection records, and proof of payment. Organize these before you submit.
6. Don’t wait for a flood to decide. Most homeowners who contact us after a basement flood say the same thing: they knew they should have done something sooner. The rebate programs exist precisely because prevention is far cheaper than repair. A basement flood that causes $40,000 in damage could have been prevented with a $1,500–$3,500 combined installation.
Many standard home insurance policies in Canada do not cover basement flooding from sewer backup unless you have specifically added overland water and sewer backup endorsements to your policy. Even with these add-ons, insurers increasingly require proof of flood protection devices to qualify for coverage or to maintain reasonable premiums.
Installing a sump pump and backwater valve is one of the most effective steps you can take to both prevent flooding and demonstrate to your insurer that you’ve taken reasonable precautions. Some insurers offer premium discounts for homes with verified flood protection installations. Ask your insurance broker before and after you complete the work.
When it comes to protecting your home from water damage, experience and a proven track record matter more than anything else. Aquatech has been waterproofing Toronto and GTA basements since 1996 — and the results speak for themselves. With 9 to 10 consecutive HomeStars “Best Of” wins, 900+ five-star Google reviews, and 20+ trucks serving the full GTA, Aquatech operates at a scale that most local contractors simply can’t match.
Every job — whether it’s interior waterproofing, exterior waterproofing, sump pump installation, foundation crack repair, or basement lowering — comes backed by a lifetime transferable warranty that stays with the property when you sell. No pressure, no shortcuts, no subcontracting. Just a permanent fix done right the first time.
Ready to get started? Aquatech offers free in-home assessments with no obligation — one of our specialists will come to your property, identify exactly what’s causing the problem, and give you a clear quote before any work begins. We’re also available 24/7 for emergency waterproofing situations, so if water is coming in right now, don’t wait.
Sump pump installation in Ontario typically ranges from $550 to $3,650, depending on whether a sump pit needs to be excavated or only the pump itself replaced. With Toronto’s BFPSP, up to 80% of this cost (to a maximum of $1,750) can be reimbursed.
Backwater valve installation generally costs between $1,000 and $3,000, depending on your home’s plumbing configuration and the complexity of the installation. In Toronto, up to 80% of the cost (to a maximum of $1,600 per valve) is covered under the expanded 2026 program.
In most cases, each municipality operates its own program and you can only apply to the program for the municipality where your property is located. You cannot double-claim the same installation across multiple programs.
In most Ontario municipalities, yes. A plumbing or building permit is required for backwater valve installation, and the work must pass a municipal inspection. This is also a firm requirement to qualify for any rebate program.
Yes. Toronto’s expanded 2026 program now includes a standalone subsidy of up to $300 for sump pump battery backup systems, including retrofits to existing pumps. Check with your municipality for similar provisions in your area.
Yes. Aquatech’s team is familiar with the rebate programs across all GTA municipalities. We provide the properly itemized invoices and documentation you’ll need to submit a complete application, and we can guide you through the process from inspection to submission.
Possibly. Active leaks, foundation cracks, or persistent dampness often point to issues that a sump pump alone won’t resolve. Aquatech will assess whether you also need foundation repair, interior waterproofing, or exterior waterproofing — and which rebate programs may apply to that scope of work.