Ontario
Rain garden and stormwater rebates in Ontario
8 programs in Ontario pay residents for rain gardens and stormwater projects. 7 list themselves as open now, and the median maximum is $1,500 per household. 75% ask for a plan, sketch or plant list before they approve a project.
8 programs
- OpenPlan required
Toronto Eco-Roof (Green Roof) Incentive
City of Toronto
Green roofs: $100 per square metre installed, up to $100,000, plus up to $1,000 for a structural assessment; cool roofs: $5 per square metre (new membrane) or $2 per square metre (coating), up to $50,000
Up to $100,000 per household
- OpenPlan required
Ottawa Rain Ready Ottawa Rebates
City of Ottawa
Downspout redirection: 75% of eligible costs up to $1,000 per downspout; rain gardens: $75 per square metre; soakaway pits: $10 per square metre of roof or paving drained (rain gardens and soakaway pits combined up to $2,500); permeable pavement: $50 per square metre up to $5,000; certified Fusion Landscape Design: $500
Up to $5,000 per household
- OpenPlan required
Guelph Rain Garden Rebate
City of Guelph (with Reep Green Solutions)
$0.50 per litre of rain garden storage, paid up to your actual installation costs, to a maximum of $2,000
Up to $2,000 per household
- OpenPlan required
Peterborough Rain Garden Subsidy
City of Peterborough, with GreenUP
Up to $1,000 toward designing and installing a rain garden
Up to $1,000 per household
- OpenPlan required
Halton Region Downspout Disconnection Subsidy
Halton Region
100% of eligible materials and invoiced contractor labour, up to $900 (work completed after July 15, 2024; $500 for earlier work)
Up to $900 per household
- OpenPlan required
Thunder Bay Rain Garden Rebate (EcoSuperior)
EcoSuperior, funded by the City of Thunder Bay
Up to $625 for plants and landscaping supplies
Up to $625 per household
- Open
Barrie Disconnect to Protect Downspout Rebate
City of Barrie
Up to $70 to disconnect downspouts (sump pump and foundation drain redirection to a lawn or rain garden: 75% of costs up to $200-$2,000)
Up to $70 per household
- Paused
Rain Ready Hamilton Rebate
Green Venture, funded by the City of Hamilton
Up to $1,500 (rain gardens, rainwater collection and storage, bioswales and similar features) or up to $5,000 (permeable paving and green roofs)
Up to $5,000 per household
Other Ontario programs
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Quote it, chart it or republish it with credit and a link to this page. Program details come from each program's official page, so check the program before you publish.
Source: Sow, “Rain garden and stormwater rebates in Ontario,” checked October 22, 2026, https://www.usesow.com/rebates/ontario/rain-gardens
Sow is not affiliated with any of these agencies or utilities. Amounts and rules change, often at the start of a fiscal year, so confirm the details on the official page before you start a project. How we research these programs
Plan the project before you apply
Sow lays out your new planting on a photo of your yard and builds the plant list from plants suited to where you live.