Backwater valve installation in Toronto & the GTA
The flood protection upgrade your home shouldn’t go without
Backwater valve installation in Toronto & the GTA is one of the smartest ways to protect your home from basement flooding and costly sewage backups. When the city’s storm system is overwhelmed, your main sewer line can push wastewater back into your home. A properly installed backwater valve prevents that by blocking the flow before it causes damage.
- Prevent raw sewage from backing up into your basement
- Protect valuables, finishes, and flooring from future floods
- Qualify for city rebate programs and insurance incentives
- Nearly 30 Years in the GTA
- Certified Backwater Installers
- Code-Compliant Workmanship
- One-Day Installation Availability
What is a backwater valve and why does it matter?
A backwater valve, also known as a sewer backflow prevention device, is one of the most important flood protection devices a home can have. It’s installed on your main sewer line to prevent sewage and wastewater from backing up into your home during heavy rains or municipal sewer overflows.
This simple device protects your floor drains, plumbing fixtures, and finished basement from raw sewage backups and expensive flood damage.
Do you need a backwater valve installed?
Knowing whether your home needs a backwater valve installation comes down to risk, and in Toronto & the GTA, it’s higher than most homeowners think.
You likely need a backwater valve if:
- Your home is in an older Toronto/GTA neighbourhood with no built-in flood protection.
- You’ve experienced sewer backups, drain clogs, or standing water after a storm.
- You’re finishing or renovating your basement.
- You’ve noticed water or sewage near your floor drains.
- You want to qualify for your City’s Backwater Valve Rebate Program.
Backwater valve rebate support for Toronto/GTA residents
Toronto residents may qualify for up to $1,250 in rebates when installing a backwater valve. For homes across the GTA, our team will guide you through permits, paperwork, and eligibility so you don’t miss out on available programs.
$25.00 OFF
Present this coupon at the time of service to save $25 on your backwater valve installation or maintenance. This offer is limited to one per household, cannot be combined with other promotions, and is available at participating locations.
Our backwater valve installation process
Our certified plumbers inspect your sewer line and assess the risk of basement flooding in your area.
From permits to paperwork, we manage it all and verify if your home is eligible for the City of Toronto backwater valve rebate, or other local rebate programs within the GTA.
Our team excavates, installs the backwater valve, and restores the work area, usually in one visit.
We ensure the valve is working properly, test the drainage system, and walk you through proper maintenance.
We help with rebate forms, documentation, and proof of installation.
25+ years of flood prevention expertise
For over 25 years, Drain Rescue has helped Toronto & GTA homeowners and businesses prevent costly basement floods. Our skilled plumbers use advanced installation methods, regulated products, and professional-grade equipment to ensure long-lasting protection.
Our clients are always happy with our work!
Backwater valve installation for homes across Toronto and the GTA
Proudly serving residential and commercial properties across Toronto and the GTA with licensed, flood-prevention valve installation services.
Frequently Asked Questions
How much does Backwater Valve Installation cost in Toronto/GTA?
Install costs usually fall between $1,500-$2,500, depending on your home’s layout and excavation needs. Toronto residents may be eligible for up to $1,250 back through the Basement Flooding Protection Subsidy Program. Across the GTA, we’ll handle permits and confirm which local rebates you may qualify for.
How do I know if my home already has a backwater valve?
If your home was built or renovated recently, it may already have a valve, but many older homes in Toronto and throughout the GTA do not. We can inspect your plumbing system to confirm whether a valve is present and functioning.
Where is the valve installed in the home?
Typically, it’s installed on the main sanitary drain line, either in the basement floor or just outside the foundation wall. We’ll determine the best spot based on access, flow direction, and city code.
Do I need a permit for this work?
Toronto requires a permit and inspection for every backwater valve installation, and similar rules apply across the GTA. We handle the paperwork, permits, and post-installation inspection so the job is fully compliant.
Is this covered by home insurance or city rebates?
Installing a backwater valve can reduce your insurance premiums. In Toronto, eligible homeowners may receive up to $1,250 through the City’s Basement Flooding Protection Subsidy Program. Across the GTA, rebate programs vary by municipality—we’ll confirm what applies to your home and provide everything your insurer might request.
How long does the installation take?
Most installs take just one day. We prep the site, install the valve, test it thoroughly, and leave the area clean and patched.
Does it require regular maintenance?
Yes. Like any mechanical valve, it should be inspected annually to ensure it’s clear of debris and working properly. We’ll show you how to check it, or we can maintain it for you.
Can I get an inspection if I’m unsure?
Absolutely. We offer quick, non-invasive inspections to confirm whether you need a backwater valve and whether you’re eligible for the city’s rebate program.
Can a sump pump replace a backwater valve?
No. A sump pump removes water from around your foundation, while a backwater valve blocks sewage from backing into your pipes. Ideally, homes should have both installed for full protection.
Does the valve make noise?
Nope! Most backwater valves operate silently and only engage when needed.
Can I install it myself?
No. In Toronto, only a licensed plumber can install a backwater valve. Attempting DIY risks code violations and could void your rebate eligibility. Across the GTA, we ensure installations meet municipal requirements.
One Small Valve. One Big Difference in a Storm.
Protect your home from flooding, health hazards, and sewage backups with a trusted backflow solution.