RIISP Subsidy Amounts

What is the maximum allowable subsidy?

The installation of plumbing devices and additional measures can help prevent flooding or sewer backups in homes.  The Residential Inflow & Infiltration Subsidy Program subsidizes the installation or purchase of the following for residential property owners with a property that is connected to the municipal sanitary sewer system:

Backwater Valve

  • Allowable subsidy = 75% of the invoiced cost up to a maximum of $1,500 including labour, materials, and taxes

Sump Pit/Pump

  • Allowable subsidy = 75% of the invoiced cost up to a maximum of $ 1,875, including labour, materials, and taxes

Eavestrough Extenders

  • Allowable subsidy = 100% of the invoices cost to a maximum of $10 per extender, with a maximum of 4 extenders per property, including taxes.

Rain Barrel

  • Allowable subsidy = 50% of the invoiced cost to a maximum of $60 per barrel, with a maximum of 2 barrels per property, including taxes.

Lateral Lining

  • Allowable subsidy = 50% of the invoiced cost to a maximum of $1,100, including labour, materials, and taxes.