Toronto Basement Flooding Subsidy: Get Up to $6,650 in 2026
Reviewed and updated July 18, 2026
Toronto homeowners may qualify for up to $6,650 through the City of Toronto’s Basement Flooding Protection Subsidy Program.
The expanded subsidy can help cover eligible plumbing assessments, backwater valves, sump pumps, battery backup systems and the severance or capping of certain storm sewer or foundation drain connections.
Aluneed helps Toronto homeowners assess their basement flood risk, understand which improvements may qualify and complete eligible installation work with the documentation required for the homeowner’s application.
Apply Through the City of Toronto
Important: The subsidy is administered by the City of Toronto. Eligibility and payment are determined by the City, not by Aluneed. Funding is available on a first-come, first-served basis and is subject to the City’s annual program funding.
How Much Can Toronto Homeowners Receive?
For eligible work completed on or after November 12, 2025, the City may reimburse up to 80% of eligible invoiced costs, subject to the following maximums:
| Eligible improvement | Maximum subsidy |
|---|---|
| Home plumbing assessment | Up to $500 |
| First backwater valve and alarm | Up to $1,600 |
| Second backwater valve and alarm | Up to $1,600 |
| Sump pump and alarm | Up to $2,250 |
| Sump pump battery backup | Up to $300 |
| Severance and capping of an eligible storm sewer or external weeping tile connection | Up to $400 |
| Maximum potential subsidy | Up to $6,650 |
A homeowner would only reach the full $6,650 maximum when completing and qualifying for all applicable categories at sufficient eligible cost. The subsidy cannot exceed the eligible amount paid for the work. Does the Toronto Basement Flooding Subsidy Cover?
Home Plumbing Assessment
A licensed plumbing contractor examines how water and wastewater move through the property and identifies potential risks of basement flooding.
The City may reimburse 80% of the eligible assessment cost, up to $500.
The City’s official assessment form must be completed as part of the process:
Download the City of Toronto Home Plumbing Assessment Form
Backwater Valves
A backwater valve helps prevent sewage from flowing backward through the building’s drainage system during a sewer surcharge or severe rainfall event.
Toronto’s expanded program may provide up to:
- $1,600 for the first eligible valve and alarm
- $1,600 for a second eligible valve and alarm
- $3,200 in total for two eligible devices
A building permit and City inspection are required for subsidized backwater valve installations. The valve must remain accessible and should not be covered before the required inspection has been completed.
Learn About Backwater Valves and Sump Pumps
Sump Pump and Alarm
A sump pump collects and redirects groundwater or drainage water before it can enter and flood the basement.
The City may reimburse 80% of eligible costs, up to $2,250, for the installation of one eligible sump pump and alarm.
Applicants must provide photographs showing the installed pump and the exterior discharge location.
Battery Backup System
A battery backup can allow an eligible sump pump to continue operating during a power outage, when the risk of basement flooding may be especially high.
Toronto may provide an additional 80% of eligible costs, up to $300, for an eligible battery backup system installed with the sump pump.
Severance and Capping
The City may provide up to $400 toward eligible work to sever and cap a storm sewer connection or an external weeping tile or foundation drain connection.
The precise solution depends on the property’s existing plumbing, drainage layout and connection to municipal infrastructure. Is Cement Waterproofing Covered by the Subsidy?
Not every basement waterproofing service qualifies.
Toronto’s subsidy is directed toward the specific flood-prevention measures identified by the City. Standard exterior waterproofing membranes, interior waterproofing, crack injection, underpinning, foundation repair and general basement renovations are not automatically covered simply because they help keep a basement dry.
However, a larger waterproofing project may include eligible components such as:
- A sump pump and alarm
- A battery backup
- One or two backwater valves
- Eligible severance and capping work
- A qualifying home plumbing assessment
When eligible and non-eligible work are completed as part of the same project, the invoice should clearly itemize each service, device, labour charge, tax and payment amount.
Explore related Aluneed services:
Toronto Subsidy Eligibility Checklist
You may be eligible when all of the following apply:
- You are the registered owner of the property.
- The property is located within the City of Toronto.
- The property is a single-family home, duplex, triplex or fourplex.
- You have not exceeded the City’s lifetime subsidy maximum for the applicable category.
- The property’s downspouts have been disconnected from the City sewer system or the City has provided an exemption.
- Any front-yard parking pad or paved area complies with applicable zoning requirements.
- The contractor and subcontractors hold the appropriate City of Toronto business licences for the work performed.
- You have original electronic, itemized and paid-in-full invoices.
- You do not have outstanding property taxes or other debts owed to the City.
- You submit the application within the applicable deadline.
For eligible work completed on or after November 12, 2025, the application generally must be submitted within two years of the invoice date. Different rules can apply to work completed before that date. o Apply for the Toronto Basement Flooding Subsidy
1. Review Your Property and Eligibility
Confirm that the property is located in Toronto and meets the property-type, ownership, downspout and zoning requirements.
Homeowners who are uncertain about prior subsidy payments associated with their property should contact the City before beginning work.
2. Complete a Home Plumbing Assessment
Have a properly licensed contractor inspect the property’s drainage and plumbing configuration.
The assessment helps determine which improvements are appropriate and whether the property may require a backwater valve, sump pump, battery backup, severance work or a combination of measures.
3. Confirm the Contractor’s City Licence
The City requires the contractor and any subcontractors to hold valid City of Toronto business licences for the particular work being performed.
Use Toronto’s official lookup before authorizing the work:
Check a Contractor’s City of Toronto Licence
Aluneed City licence category and number: [INSERT VERIFIED LICENCE CATEGORY AND NUMBER BEFORE PUBLISHING]
4. Obtain the Required Permit
A building permit is required for subsidized backwater valve installations.
Do not conceal or cover the installation before the City has completed any required inspection.
City of Toronto Building Permit Information
5. Complete the Approved Work
The selected flood-protection measures should be installed in accordance with applicable codes, permit requirements, manufacturer specifications and the City subsidy rules.
For sump pump applications, take clear photographs of:
- The installed sump pump
- The alarm and battery backup, when applicable
- The exterior discharge location
6. Collect Your Documents
Keep electronic copies of:
- The completed home plumbing assessment
- Building permit and inspection information
- Itemized contractor invoices
- Proof that each invoice was paid in full
- Photographs of the sump pump and discharge location
- Contractor and subcontractor licence information
- Any supporting documentation requested by the City
7. Submit the Online Application
The registered homeowner submits the application directly to the City:
Start the Toronto Basement Flooding Subsidy Application
The City advises that application processing can take up to 10 weeks. Additional time may be required when information is incomplete or further review is necessary. Reasons Applications Are Delayed or Rejected
Applications may encounter problems when:
- The contractor or subcontractor did not hold the required licence at the time the work was performed.
- A backwater valve was installed without the required building permit.
- The valve was covered before inspection.
- Invoices are not itemized.
- An invoice does not show that it was paid in full.
- Required sump pump or discharge photographs are missing.
- The application is submitted after the deadline.
- Downspouts remain connected to the municipal sewer without an approved exemption.
- The property has outstanding City taxes or debts.
- The lifetime subsidy maximum was already used by the property.
- The work is general waterproofing or foundation repair rather than a measure covered by the program.
Checking these requirements before construction begins can prevent costly application problems later.
How Aluneed Helps Toronto Homeowners
Aluneed is a family-owned Toronto waterproofing company with more than 25 years of foundation repair and basement waterproofing experience.
Our team can help you:
- Investigate the source of basement water or sewer backup risk
- Review potential flood-prevention options
- Explain which project components may be eligible
- Coordinate the eligible backwater valve, sump pump and drainage work
- Provide a clear and itemized project estimate
- Maintain installation photographs and project documentation
- Separate eligible and non-eligible work on the final invoice
- Complete related waterproofing and foundation repairs when required
The homeowner remains responsible for verifying eligibility and submitting the application. Final subsidy approval and payment are determined exclusively by the City of Toronto.
Call Aluneed at 416-877-4751
Frequently Asked Questions
How much is the Toronto basement flooding rebate in 2026?
The maximum potential subsidy is $6,650 for eligible work completed on or after November 12, 2025. This total includes the maximum amounts for a plumbing assessment, two backwater valves, a sump pump, battery backup and eligible severance or capping work.
Does the City pay the contractor directly?
The program generally operates as a reimbursement. The homeowner completes and pays for the eligible work, collects the required documents and submits the application to the City.
Can I receive a subsidy for exterior basement waterproofing?
Exterior waterproofing by itself is not one of the measures identified under the Toronto subsidy. A waterproofing project may still include separately itemized eligible components such as a sump pump, backwater valve or qualifying severance work.
Is a building permit required for a backwater valve?
Yes. A building permit and inspection are required for subsidized backwater valve installations.
Can I apply for work that has already been completed?
Potentially. Work completed on or after November 12, 2025, may qualify under the expanded amounts when all requirements are satisfied and the application is submitted within two years of the invoice date.
Work completed before November 12, 2025, is subject to the former program limits and deadlines.
Can I claim more than one backwater valve?
Toronto’s expanded program allows subsidies for up to two eligible backwater valves and alarms, with a maximum of $1,600 per device.
Is downspout disconnection covered?
The cost of disconnecting a downspout is not an eligible expense under the Toronto subsidy. However, the property’s downspouts generally must already be disconnected from the sewer system unless the City has granted an exemption.
How long does the application take?
The City indicates that processing may take up to 10 weeks. Incomplete applications can take longer.
Is the $6,650 payment guaranteed?
No. The amount depends on the eligible work completed, invoiced cost, property history, documentation and compliance with all City requirements. Funding is also subject to the City’s annual budget and is distributed on a first-come, first-served basis.
Official Toronto Application Resources
- City of Toronto Program Details
- Online Subsidy Application
- Home Plumbing Assessment Form
- Contractor Licence Lookup
- Toronto Building Permit Information
City program contact
Email: BasementFlooding@toronto.ca
Protect Your Basement Before the Next Major Storm
A backwater valve, sump pump, or drainage improvement can reduce the risk of basement flooding, but the correct solution depends on how water enters the property.
Book an assessment with Aluneed to understand the source of the problem, available repair options and which project components may qualify for Toronto’s subsidy.
