Backwater Valve Installation Toronto
Prevent sewage backup with our cost-effective backwater valve installation services in Toronto and across the GTA.
You may be eligible for a rebate of up to $1,250 for the installation or replacement of a backwater valve.





At Water Pro, we provide complete water drainage and sewer solutions, from repairs and inspections to advanced no-dig techniques.
With 24/7 emergency support, we ensure fast, reliable service whenever you need it.




Top Contractor for Backwater Valve Installation in Toronto
Your home is a sanctuary, and it is crucial to protect it from sewage backup and potential water-related damage. At Water Pro, we specialize in backwater valve installations to keep wastewater flowing away from your home’s basement. With our expertise and efficient backwater valves from top brands in Canada, protecting your basement from wastewater backflow or flooding is now easy.
Water Pro has been helping Toronto homeowners keep water out of their houses for nearly three decades. We are a family-owned and operated company dedicated to offering the most effective backwater valve installations and other drainage system services at affordable prices. Water Pro is fully licensed, insured, and has an in-house team of certified plumbers and other professionals.
If you plan to install flood protection devices, such as a backwater valve, our team is ready to help you install an efficient valve and prevent basement flooding whenever there is a rainstorm or a clogged main sewer line. Schedule a free consultation today and discuss the efficiency of your home’s plumbing system with a professional plumber.
How Does a Backwater Valve Work?
Generally, a backwater valve is a one-way gate for your home’s main sewer line. It allows all the wastewater from your home to flow in one direction into the municipal sewer system. The valve automatically blocks or prevents sewage backflow into your property’s plumbing system.
Under normal conditions, the backwater valve remains open, allowing wastewater to flow away. However, when there is a sewage backup, the small flap inside the valve automatically closes. It acts as a shield to prevent sewage from backing up into your house. One unique aspect of this backflow prevention valve is that it works automatically.
Do Toronto homeowners need to install a backwater valve? Well, there are different scenarios that necessitate backwater valve installation in Toronto homes. These include;
History of Sewer Backups
If your house has experienced wastewater backflow before, installing a backwater valve can prevent water from flowing back into your house. This is particularly beneficial during heavy rainstorms when the city’s sewer system gets overwhelmed and begins to block the incoming flow of sewage from your house.
You Live in a Flood-Prone Area
Suppose your home is in a neighbourhood prone to heavy rains or flooding. In that case, your house is at a higher risk of sewer line backflow due to the excess water pushing wastewater backwards into the main drain. Backwater valve installation in Toronto homes can prevent water from flowing back into the basement and other parts of your home.
You Plan to Renovate Your Basement
If you plan to renovate your basement and transform it into a living space, you will need to install a backwater valve to prevent basement flooding. During a wastewater backflow event, the contaminated water poses health risks to everyone living in your house. There’s also the risk of flood damage to your basement floor, walls, and other parts of your home.
Compliant with Local Plumbing Codes
For older properties, it’s recommended to install a backwater valve to stay compliant with the updated local plumbing code. The recent updates require the installation of a backwater valve to ensure safety and sanitary conditions.
Insurance Requirements
In some cases, insurance companies require homeowners in Toronto to install backwater valves to maintain an active homeowner’s insurance policy. Therefore, if you haven’t installed one, contact us and schedule a backwater installation today.
You’re Building or Buying a New Home
According to recent building code updates in Toronto, the installation of a backwater valve is mandatory for all new semi-detached properties, single-family homes, row house units, and townhomes. The valve may be installed on the sanitary building drains (sanitary service literals).
Benefit from the City’s Rebates Program
In Toronto, backwater valve installations may be eligible for a rebate of up to $1,250 for new installations or replacements. That means eligible homeowners can benefit from backwater valve rebates through Toronto’s Basement Flooding Protection Subsidy Program.
Your Basement is Lower than a Nearby Manhole
If your basement floor or other plumbing fixtures are lower than the nearest municipal manhole cover, gravity can easily push sewage into your house during a system surcharge. Installing a backwater valve can prevent the reverse flow of sewage or wastewater.
Why Choose Water Pro for Toronto Backwater Valve Installation?
Professional Inspection
Before we install a backwater valve, we’ll inspect your plumbing system. Our certified plumbers will assess your sanitary drain layout, basement elevation, and sewer connection. This allows us to determine the correct valve type and the safest installation point. Remember, professional installation is essential to reduce the risk of sewer backflow and ensure code compliance.
Satisfaction Guarantee
Water Pro is a fully licensed, insured, and BBB-listed plumbing contractor that provides backwater valve installation services. All our drainage-related work is completed by certified, in-house plumbers who follow Toronto plumbing codes. That’s why we stand behind the quality of our workmanship and materials with a satisfaction guarantee to our clients across Toronto.
FAQs
Does a backwater valve require regular maintenance?
Yes. Like any other mechanical device, a backwater valve requires routine cleaning and proper maintenance to ensure proper functioning even during heavy rainfall. Each sewer backup valve has an access point for regular maintenance. It’s recommended to have a licensed plumber check your backwater valve periodically to ensure the valve functions efficiently and maintains normal flow.
What are the benefits of installing backwater valves in Toronto homes?
A backwater valve helps reduce the risk of sewage with harmful substances entering your basement. Sewer backups can create health hazards and lead to structural damage. Early installation can limit exposure to contaminated water and reduce the likelihood of extensive cleanup and repairs.
When is a backwater valve most needed in Toronto homes?
Backwater valves are especially important during heavy rainstorms. Intense rainfall can overwhelm the municipal sewer system, causing pressure in the main drain that may force wastewater back into lower plumbing fixtures. The valve also prevents sewage backflow in the event that the main sewer line becomes clogged.
Is installing a backwater valve worth the cost?
Yes. Sewer backups often result in costly repairs that involve flooring, drywall, and electrical systems. Installing a valve helps reduce long-term risk and may help you save money by avoiding repeated damage and insurance claims. A backwater valve works in conjunction with systems like weeping tiles and sump pumps to keep sewage flowing away from your home.
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Backwater Valve Installer at Your Service
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24/7 professional assistance: Day or night, you can count on our team to address all plumbing issues or emergencies.
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Fully licensed & Insured: We offer code-compliant installation of backwater valves, sump pumps, and other plumbing installations to prevent the contamination of your home’s potable water supply.
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Over 25 years in business: Our plumbers have decades of experience in backwater valve installations and other critical components of drainage systems.
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Free quote: Get an upfront cost estimate without hidden costs. Thus, you will be able to make informed decisions about your home’s plumbing upgrades.
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Client satisfaction guarantee: Water Pro offers a 25-year warranty for all projects involving underpinning and waterproofing.
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Locally owned: Toronto residents can expect reliable and personalized backwater valve installations, preventing backflow of sewage into their homes.


Our Backwater Valve Installation Process
01 Assessment
Our team inspects your sanitary drain, basement elevation, and sewer connection. This assessment helps identify the optimal location for the backwater valve and confirms the correct valve type for your home.
02 Site Preparation
Next, we prepare the installation area by clearing obstructions and exposing the required section of the drainage system. Proper alignment is confirmed to ensure the valve connects correctly with existing plumbing.
03 Excavation
Where necessary, our team carefully excavates the area to access the sewer line. This phase is completed with minimal disruption to protect the surrounding structures, finishes, and underground utility lines.
04 Installation
Next, our plumbers install the appropriate backwater valve directly into the sewer line. The valve is carefully positioned to allow normal wastewater flow while automatically closing in the event of sewage backflow.
05 Connection
The valve is securely connected to your drain system. All joints are sealed to ensure watertight performance and smooth wastewater flow under normal operating conditions. Remember, the valve will automatically close to prevent a reverse flow of wastewater.
06 Testing and Adjustments
After the installation process is complete, we test the valve to confirm proper operation. Adjustments are made as needed to ensure the flap opens and closes correctly and responds effectively to backflow conditions.
07 Restore Flow
After testing is complete, we backfill the excavated area and restore surfaces where applicable. Normal drainage flow is reinstated, and the system is left clean and functional. Schedule your backwater valve installation to ensure your home remains compliant with local regulations.
What's the Cost of Backwater Valve installation in Toronto?
Backwater valve installation costs vary widely depending on several factors, such as the type of installation, complexity, and additional permit fees. Here are the estimated costs of installing backwater valves in Toronto.
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Cost Category |
Estimated Cost |
|
Interior backwater valve installation |
$1,600 to $2,600 |
|
Exterior backwater valve installation |
$2,400 to $4,200 |
|
Permits |
$35.75 |
Eligible homeowners may get a rebate of up to $1,250. Speak with certified backwater valve installers, like Water Pro, to find out if you’re eligible for the rebate. Also, request a free quote for the proper installation of a backwater valve, floor drain, and other plumbing fixtures.
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