The Back-Water Valve Subsidy Installation Program assists homeowners with the cost of installing a back-water valve. The available subsidy is 50 per cent of the invoiced cost of installing an approved back-water valve, up to a maximum of $750.

The City provides subsidies on a first-come, first-served basis while funding is available.

Why Install a Back-Water Valve?

The sanitary back-water valve helps protect basements from flooding when severe weather causes sewers to overflow. Installing a back-water valve can significantly reduce the risk of basement flooding and prevent home damage.

Program Eligibility

• A certified plumbing professional must install the back-water valve.
• Homes in the planning stages or those currently under construction do not qualify for this subsidy program.
• Homeowners must obtain a plumbing permit before applying to this subsidy program. Homeowners can obtain a plumbing permit from Vaughan’s Building Standards Department on the first floor at Vaughan City Hall at 2141 Major Mackenzie Drive.
• The subsidy does not cover any interior (paint, drywall, flooring, etc.) or exterior restorations required to complete the back-water valve installation.
• A member of Vaughan’s Building Standards Department must inspect back-water valve installations. Schedule the inspection before enclosing or covering the work. To request an inspection, call the inspections line at 905-832-8511 and press 0.
• Once the installation of the back-water valve is complete, you may apply for the subsidy program by completing the Application Form.
• The application package must include:
  • A completed application form (PDF). The application must include a verifiable College of Trades membership number.
  • A copy of the invoice. The invoice must show a complete breakdown of all charges as well as the plumbing or drain license number of the contractor, and the total amount paid.
  • The invoice must be marked as paid in full.
  • A copy of the completed building permit.
• Submitted the documents by mail to:
  City of Vaughan – Environmental Services Department
  Back-Water Valve Installation Subsidy Program
  800 Rutherford Rd. Vaughan, ON L4K 2N

Visit the Back-Water Valve Subsidy Installation Program page for more information.