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Protect your home from sewer line back-ups

Help to protect your home from a sewer line back-up by installing a backwater valve. Our Backwater Valve Subsidy offers financial assistance by providing up to $800 for interior or exterior backwater valve installation. Our program targets homeowners:

  • Whose homes were built prior to 1989
  • Who have had previous basement flooding from sanitary sewer backup
  • Who live in areas of Edmonton with previous neighbourhood flooding

Program eligibility

To be eligible for the program, you must:

  • Not have an existing backwater valve in your home
  • Not have previously received a subsidy for the application address
  • Have your home separately serviced (single family dwelling or duplex)

Application process

1. Get pre-approved

Before installing your backwater valve, our Flood Prevention Advisors must complete a backwater valve inspection. Once you get approval from the advisor at the time of inspection, installation of a backwater valve can proceed.

To book the backwater valve inspection, call (780) 944-7777 or email Please include:

  • Name
  • Phone number
  • Property address for backwater valve installation

2. Install the backwater valve within 6 months of our inspection

A professional plumber must install the backwater valve. Only the following valves will be subsidized:

  • Fullport Backwater Valve
  • FR-4 Fullport Retro Backwater Valve
  • Adapt-a-Valve

3. Submit the application within 6 months of our inspection

You must submit the application within 6 months of the inspection or the installation will no longer qualify for the subsidy. The application must include:

  • Proof of professional installation with an invoice that notes the model of valve installed
  • A copy of the plumbing permit 
  • The final plumbing approved inspection number

Subsidy conditions

  • The subsidy, up to $800, will be paid by cheque made payable to the applicant.
  • Subsidies are subject to available funding and are provided on a first-come, first-served basis. There are no guarantees to receive a subsidy.