Basement Flooding Prevention Subsidy Program

Thank you for your interest in the Basement Flooding Prevention Subsidy Program. In response to recent flood events and subsequent increase in interest in the program, Halton Region has changed the method of delivering this program in order to accelerate the application process and provide the best possible service to our residents. Residents are no longer required to have an initial assessment done by Halton Region.

An overloaded sewer (known as surcharging) usually happens during severe rainstorms. Sewers can become overloaded due to excessive water flow from:

  • Downspouts (roof leaders)
  • Weeping Tiles/Foundation Drains
  • Sump pumps connected to lines designated for sanitary sewer flows.

Halton Region recognizes that a flooded basement can be one of the most stressful and disruptive events associated with being a homeowner. In order to assist homeowners reduce the potential for future flooding from a backup of the sanitary sewer system, Halton Region is providing a one-time Basement Flood Prevention Subsidy, up to a maximum of $2,725.00, to assist:

  • Halton residents who have a history of basement floods caused by a backup or surcharge of the sanitary sewer system.

  • Halton residents who have not experienced flooding but would like to correct improper storm water connections and install a backwater valve.

What does the subsidy cover?

A one-time subsidy up to a maximum of $2,725.00. Please see the table below for a breakdown of the maximum allowance.

Halton Region's Basement Flooding Prevention Subsidy Allowances
Subsidized Item / Work Includes Costs For: Percentage of Total Cost /  Maximum Reimbursement
Weeping Tile Disconnection / Sump Pump System
  • Disconnection of the weeping tiles/foundation drains from the sanitary sewer system.
  • Purchase & installation of a sump pump system; to receive storm water from the weeping tiles and to direct water to suitable location away from home.
  • Covers costs for materials, labour, permit & taxes.
Subsidy is for 50% of the invoiced total by contractor up to a maximum of $1,800.00.
Disconnection of Downspouts


  • Costs associated with redirecting downspouts away from home and to cap the existing pipe leading to the weeping tiles at the side of the home.
Subsidy is for 50% of all costs up to a maximum of $250.00.
*Backwater Valve


  • Purchase and installation of a building code-approved backwater valve inside the home.
  • Covers costs for materials, labour, permit & taxes.
Subsidy is for 50% of the invoiced total by contractor up to a maximum of $675.00.

* Homeowners will only quality for this subsidy if they have demonstrated they do not have any downspout or weeping tile/foundation drain connections to the sanitary sewer or coinciding with measures to eliminate these connections.

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The Application Process: How do I apply?

The homeowner coordinates all of the necessary work, as follows:

  1. Perform the necessary due diligence in selecting a qualified drainage contractor capable of performing the work) in your home. Some important things to consider when selecting a contractor who is right for you are:
    • Get at least three estimates.
    • Ask for, and check contractor references.
    • Call the Better Business Bureau for a reliability report on contractors.
  2. Apply to your Local Municipality for a permit to conduct the work.
  3. Complete the work.
  4. Once all work is complete, arrange for an inspection and documentation from your Local Municipality ensuring the work meets the Ontario Building Code standards.
  5. Submit invoices, copies of the permit and inspection documentation from the Local Municipality, along with the necessary signed original application and waiver forms.

    Please mail or drop off all required information to:

    • The Regional Municipality of Halton
      Public Works, Wastewater Services
      c/o Wastewater Collections - Operations Support Coordinator
      Woodlands Operation Centre
      1179 Bronte Road, Oakville ON, L6M 4G3
  6. Upon review of the completed application ensuring the work completed meets the Ontario Building Code standards, a cheque will be mailed to the homeowner within 4 to 6 weeks.

If you have any questions or require more information about the subsidy application process, please dial 311.

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Terms & Conditions for Subsidy Funding

  1. The Regional Municipality of Halton (“the Region”) supports local residents in taking proactive measures to mitigate the risk of basement flooding events through the Basement Flooding Prevention Subsidy Program (“the Program”). These terms and conditions are set out to govern conditions of any support between the Region and the Applicant as part of the Program.
  2. Work is defined any of the following:
    • Disconnection of downspouts from the sanitary sewer system.
    • Disconnection of weeping tiles from the sanitary sewer system and installation of a sump pump system with battery backup.
    • Installation of an Ontario Building Code approved backwater valve.
  3. Completed Work is defined as Work that is fully functional and acceptable under industry standard. Work is only deemed “Complete” upon meeting Ontario Building Code standards and approval by Local Municipal Building Inspector.
  4. All Work, and inspection of Work, is to be coordinated by the homeowner.
  5. The homeowner is responsible for the on-going operation and maintenance of all equipment installed as part of the Work.
  6. The homeowner must sign the Region’s application form and waiver form, releasing the Regional Municipality of Halton from any liability resulting from Work carried out as part of the Basement Flooding Prevention Subsidy Program.
  7. Reimbursement will occur upon satisfactory review of the submitted required forms and associated documentation, and the Work being declared Complete. A Cheque will be mailed out within 4-6 weeks of receipt of an acceptable and complete application.
  8. The Region will not be held responsible for any maintenance or warranty, with respect to the performance, capabilities, or failures of any work, device, or workmanship related to any Work performed as participation in any part of this subsidy program.
  9. The Region reserves the right to accept or reject, at its sole discretion, any application or any part thereof.
  10. At any time and for any reason, the Region may terminate the Program and refuse any or all further applications. Any such decisions may be made in the Region’s sole discretion.
  11. Failure to meet any or all conditions of the Terms and Conditions may result in application refusal, disentitlement to any subsidy, and/or refusal of future applications to the Program.

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Additional Information

For additional information on the Basement Flooding Prevention Subsidy Program, dial 311 or email Access Halton.

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