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Backwater Valve Installation Subsidy


In the event of heavy rainfall, homes that do not have a backwater valve installed on their underground pipes are at a greater risk of sewer back up and basement flooding.

About Backwater Valve Installation

A backwater valve is a device installed on your sewer lateral that prevents wastewater from re-entering your house.

Animation illustrating the backwater valve in it's working state; allowing a one way flow from the home to the sanitary sewer, and it's closed state; which prevents sewer overload water from entering the home during a back up.

Apply to the program

  1. Download the Enhanced Basement Flooding Prevention Subsidy Program application form (PDF file) and the Enhanced Basement Flooding Prevention Subsidy Program waiver form (PDF file)  for the Enhanced Basement Flooding Prevention Subsidy Program.
  2. Follow additional steps pertinent to each different subsidy program.
  3. Submit a completed application form and waiver form, along with the required documentation outlined in the application form using one of the methods listed below. Residents are encouraged to send applications by email or by mail at this time:
    • Place in the drop-box at Halton Regional Centre: Place the application form in the drop-box available at the front of Halton Regional Centre, located at 1151 Bronte Road, Oakville. Note: Halton Regional Facility and Woodlands Operations Centre are currently closed to the public as of Monday, March 23.

Financial Support

Halton Region will cover 50% of the cost to install a backwater valve inside of your home, up to $675.