Learn about the financial assistance and water discounts available to you in the City of Thunder Bay.

The following tax and water credit programs are available to eligible groups:

The City also offers a drainage rebate, administered through EcoSuperior:

Drainage rebate

The City of Thunder Bay offers financial assistance if you’d like to take flood prevention measures including:

  • Installing sump pumps;
  • Sewer back-up prevention valves; and
  • Weeping tile disconnections.

The rebate program is available to property owners whose homes are impacted by extreme weather events.


EcoSuperior delivers this program on behalf of the City and rebates are available while funding lasts each year. Check EcoSuperior's drainage rebate webpage for more information.

What does the drainage rebate cover?

Through the drainage rebate, the City will cover the following:

  • New connections to the city storm sewer - Rebates are available for 50% of the invoiced costs up to $1,500 for a new connection to the City storm sewer where foundation drainage is being redirected from the sanitary sewer.
  • Sump pump/leaching pit installation - This includes 50% of the invoiced costs up to $1,500, including labour, materials, permit and taxes.
  • Sewer back-up prevention valve (backwater valve) - This includes 50% of the invoiced cost up to $1,750, including labour, materials, permit and taxes.
  • Disconnect weeping tile from sanitary sewer system - This includes 100% of the invoiced cost up to $500, including labour, materials, permit and taxes.


You may qualify for the rebate if your home is on the City of Thunder Bay water supply and you have a water account in good standing. We allow one application per household. You must own (not rent) a single-family home or duplex. Your home's downspouts must have been disconnected from storm and sanitary sewers. You must obtain applicable permits from City of Thunder Bay. A participating licensed plumber must install sewer back-up prevention valves. A qualified contractor must do other any work required.

Contact EcoSuperior for more details

For more information, contact EcoSuperior at (807) 624-2040 or email info@ecosuperior.org

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