Toronto Sump Pump Rebate — Up to $2,550 Combined
Last reviewed: April 30, 2026 · Source: City of Toronto
Quick answer
Up to $2,250 for the sump pump + up to $300 for battery backup = $2,550 combined. Subsidy covers 80% of cost. Battery backup is the new addition in the May 2026 program expansion.
What a sump pump does
A sump pump moves groundwater collected by your weeping tile system (foundation drainage) away from your foundation before it can enter the basement.
Toronto's clay-heavy soil and aging building stock make basement flooding a real risk, especially during severe storms. A sump pump is one of the primary tools for protecting against groundwater intrusion — but only when it has reliable power.
Subsidy details
Sump pump
$2,250
Maximum subsidy · 80% of invoiced cost · 1 device per property
Sump pump battery backup
$300
Maximum subsidy · 80% of invoiced cost · Includes retrofits · New in 2026 expansion
Combined maximum
$2,550
Sump pump + battery backup combined
Why the battery backup matters
The same severe storms that cause basement flooding also frequently cause power outages. Without battery backup, your sump pump stops working at the exact moment you need it most.
Adding the $300 battery backup to a $2,250 sump pump subsidy is one of the highest-value combinations in the program — typical retrofit installations of battery systems run $300–$500, so the subsidy can cover most or all of the cost.
Practical note: If you already have a sump pump and just want to add battery backup, you can apply for just the $300 subsidy. It's available for retrofits, not just new installations.
Sump pump + backwater valve combo
Sump pumps and backwater valves protect against different types of flooding:
- •Sump pump: handles groundwater coming up from below (weeping tile, foundation seepage)
- •Backwater valve: handles sewage backup coming from the City sewer
Most flood-prone Toronto homes need both. If you install them together, you need a Consent to Enter form with the permit application so the City can inspect both at once.
Combining all three subsidies (sump pump $2,250 + battery $300 + 2 backwater valves $3,200) plus the $500 plumbing assessment can reach the program maximum of $6,650.
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Start calculator →Common questions
How much is the Toronto sump pump subsidy?
Up to $2,250 for the sump pump itself, plus up to $300 for a battery backup system — combined potential of $2,550. The subsidy covers 80% of the invoiced cost.
Do I need a battery backup for the sump pump?
It is not required, but strongly recommended. Power outages often happen during the same severe storms that cause flooding. Without battery backup, your sump pump won't run when you need it most. The City offers a separate $300 subsidy specifically for battery backups, including retrofits.
Can I install a sump pump alongside a backwater valve?
Yes — and many homeowners do, since they protect against different failure modes. If installed together, you need a Consent to Enter form included with the permit application so both can be inspected and verified.
Where should the sump pump discharge water?
The City recommends discharging onto a permeable surface at least 2 metres from the foundation wall. Discharging too close to the foundation can cause water to flow back toward the home.
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SOURCE & DISCLAIMER
Information based on the City of Toronto Basement Flooding Protection Subsidy Program (BFPSP). Last verified: April 30, 2026.
ClaimRebate.ca is an independent homeowner guide. We are not affiliated with the City of Toronto. Final eligibility and subsidy amounts are determined by the program administrator.