A basement flood or flooded basement caused due to heavy rain is a total nightmare. Besides the sewer backups wrecking your property underneath, it’s also very expensive to recover from. If you’re dealing with a flooded basement right now in Toronto, then you must call a professional to reduce the risk of basement flooding and prevention services. PRICEING AND MORE The City of Toronto is providing subsidies to help install flood prevention devices. The property owners get up to $3,400 per property to install and replace flood protection devices.