Backwater Valve Installation · Markham
Backwater Valve Installation for Markham homeowners.
Markham lists both indoor and outdoor backwater-valve categories with different maximum rebate amounts and requires technical review before new work.
A backwater valve is designed to close when wastewater reverses direction in the sewer lateral. The valve must be placed on the correct pipe, remain accessible and be installed as part of a system that accounts for stormwater connections upstream.

What we review
Fit the installation to the home and the local rules.
- Review of the sanitary and storm drainage layout
- CCTV inspection or verification where required by the programme
- Indoor or outdoor installation planning based on local rules and site conditions
- Permit, inspection and product documentation
Markham Private Plumbing Protection Rebate
The current programme lists up to $5,000 for weeping-tile disconnection with sump-pump installation, up to $2,000 per outdoor backwater valve and other category limits.
See Flood Ready services in Markham →Questions about backwater valve installation in Markham
Does backwater valve installation qualify for the Markham programme?
Eligibility depends on the property and current programme rules. Markham lists both indoor and outdoor backwater-valve categories with different maximum rebate amounts and requires technical review before new work. The municipality or region makes the final decision.
Do permits or inspections apply?
They may. We review the relevant municipal requirements and keep permit and inspection records when they are part of the project.
What is the first step?
Call Flood Ready and describe the home, past flooding and existing equipment. We can then determine whether an assessment or programme review should come first.
Start with a clear assessment
Tell us what is happening at your home.
We will ask about past flooding, the sump, sewer, downspouts and the municipality before recommending the next step.
