Published 7 September 2026 · By Jatin Dua, Broker of Record, RE/MAX Quantum Realty
The City of Toronto will reimburse 80% of what you spend protecting your basement from flooding, up to $6,650 per property. That covers a backwater valve at up to $1,600 per device for two devices, a sump pump at up to $2,250, a battery backup at up to $300, a home plumbing assessment at up to $500, and weeping tile capping at up to $400. You apply after the work is done, within two years, and it is first come, first served.
What the subsidy actually pays for
This is one of the few municipal programmes that reimburses a genuinely large share of a real home improvement. It is not a rebate on a small fee. On a full installation it can be several thousand dollars back.
There are four categories of eligible work, each capped separately, and the City pays 80% of the invoiced cost up to that cap.
| Eligible work | Maximum subsidy | Notes |
|---|---|---|
| Home plumbing assessment | $500 | A professional look at what is actually wrong |
| Backwater valve | $1,600 per device | Maximum two devices |
| Sump pump | $2,250 | Removes water collected by foundation drains |
| Battery backup for the sump pump | $300 additional | Only useful with a sump pump |
| Weeping tile capping or severance | $400 | Disconnecting foundation drains from the City sewer |
| Total per property | $6,650 | 80% of invoiced cost, whichever is lower |
Start with the assessment
The $500 plumbing assessment is the piece most people skip, and it is the one that stops you buying the wrong thing. A backwater valve protects against sewage backing up into the house. A sump pump deals with groundwater collecting around the foundation. They solve different problems, and a house with the wrong device installed is still a house that floods.
Who qualifies
The eligibility conditions are straightforward but each one has caught somebody out.
- You own a single-family home, duplex, triplex or fourplex in Toronto.
- Your downspouts are disconnected from the City sewer system.
- Your property complies with the front yard paving rules in the zoning bylaw.
- Your contractor holds a valid City of Toronto business licence.
- You apply within two years of the installation being completed.
- You have no outstanding debts owed to the City.
Why this matters more in parts of Etobicoke
Etobicoke sits across the lower reaches of Mimico Creek, Etobicoke Creek and the Humber, and a good deal of its housing stock was built before modern storm sewer standards. That combination means basement flooding here is not a rare event confined to extraordinary storms.
If you are buying a house in one of these pockets, the questions worth asking are simple and specific: has the basement flooded, is there a backwater valve, is there a sump pump, and are the downspouts disconnected. A seller is not always required to volunteer that history, but an unasked question is a question you have chosen not to have answered.
The order to do this in
If you are starting from nothing, this is the sequence that wastes the least money.
- Book the plumbing assessment and claim the $500 toward it.
- Fix the free things first — clear the eavestroughs, extend the downspouts away from the foundation, check the grading falls away from the house.
- Install what the assessment actually recommends, using a City-licensed contractor.
- Keep every invoice, and apply within two years.
- Tell your insurer what you have installed, and ask what it changes.
Common questions
Do I pay first and get reimbursed?
Yes. This is a reimbursement programme, not an up-front grant. You pay the contractor, then apply with the invoices.
Does it cover finishing or repairing a flooded basement?
No. It covers protective devices and the assessment, not damage repair, drywall, flooring or contents. That is what insurance is for.
I live in a condo. Does this apply?
The programme is for owners of single-family homes, duplexes, triplexes and fourplexes. A condominium corporation is a different situation entirely.
How long does the money take?
Processing times vary and the City handles applications first come, first served. Do not spend the subsidy before you receive it.
Will a backwater valve stop every kind of flooding?
No. It stops sewage backing up through your drains. It does nothing about water coming in through a window well, a crack in the foundation, or over the top of the lot. That is why the assessment matters.
Buying in Etobicoke and worried about water?
I can tell you which pockets have a history, what to ask a seller, and what to look for in a basement before you make an offer.
Ask me before you buy or call or text 437-987-1925.
Related reading
- Etobicoke and GTA neighbourhood guides
- What is my home worth?
- Renovation ROI calculator
- Ontario real estate answers
- City of Toronto, Basement Flooding Protection Subsidy Program — subsidy amounts for work completed on or after 12 November 2025, eligibility conditions, and application window.
Jatin Dua is Broker of Record and co-founder of RE/MAX Quantum Realty, Brokerage, Unit 101, 799 The Queensway, Etobicoke. Four-plus years in the GTA and more than $100M in sales volume.
General information only. Subsidy amounts, eligibility and funding availability change, and the City is the only authority on your application. Confirm current terms with the City of Toronto before committing to any work.