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

Free to cite

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.