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Backwater Valve Installation Services in Toronto & GTA

Floods in the basement are not a big deal if your house has a backwater valve installed. Quality installation and guaranteed service from experienced professionals at Quality Age Building!

What Is A Backwater Valve?

A backflow from the sewer is not a new problem for Toronto residents. After heavy rains, the city’s sewer channels often overflow with water, leading to basement flooding for homeowners. However, this problem is easily solvable; you only need to order a backwater valve installation in Toronto.

A backwater valve, or as it’s also called, backflow or sewer backup valve, is a mechanism that is installed on the drain line of the sewage system. Its main task is to ensure that sewage or water flows in one direction – away from the house.

When Is It Necessary to Install a Backwater Valve?

Initially, everything depends on where you live. In some cities, installing a backwater valve Toronto is mandatory, while in others, it is recommended. Let’s consider in which situations it is best to ensure the presence of a backflow valve in your plumbing system.

Flood-Prone Area

If the basement of your house regularly floods with water from heavy rains due to sewage blockages, a backwater valve will help solve this problem, eliminating moisture and, as a result, mold and mildew.

Sewer Backups

If your home previously experienced sewage backups, a backwater valve prevents the movement of wastewater back into the house.

Basement Renovations

If you have decided to renovate your basement, turning it into a living space, a backwater valve will protect your investment by making it waterproof.

New Plumbing Installation Regulations

During major renovations, some cities have updated plumbing installation regulations, which now include the mandatory presence of a backwater valve.

Insurance Conditions

For the insurance company to confirm the insurance of your property, you may be required to install a backwater valve.

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City Rebates for Backwater Valve Installation

(City of Toronto Only)

Given the significant financial costs associated with backwater valve instalment, municipal authorities provide city residents with a special subsidy to help save substantially. This program is called the New Basement Flooding Protection Subsidy Program. Thanks to it, every homeowner in Toronto can receive up to 80% of the final cost, but the total amount should not exceed $1,250. This cost already includes expenses for labor, materials, taxes, and government permits.

For reimbursement under this program, installation work must be done by a licensed city plumber. If you decide to install the backwater valve yourself and something goes wrong, you’ll be solely responsible. It’s better to turn to the professional valve installers at Quality Age Building right from the start.


The City of Toronto offers a rebate of up to 80% of the invoiced cost


Maximum cap of the rebate offered by the city is $1,250
An excavated site for backwater valve installation with a new valve in place, lit by a portable work light, symbolizing proactive home protection

How Does A Backwater Valve Work?

Directional Flow

A backwater valve prevents the reverse flow from sewage systems into your home plumbing. Under normal conditions, it remains open to allow waste to flow freely from your home’s pipes into the public sewer system.

Flap Mechanism

If water gets trapped in the sewer, the valve rises with the help of floats and seals with a special gasket. Thanks to this, sewage water cannot flow back into your home. Once the backflow subsides, the valve returns to its open position.

Automatic Operation

This is one of the significant advantages of installing a backwater valve. Its automatic operating mechanism does not require activation or manual control. It independently determines the direction of water flow and reacts accordingly.

Maintenance Access

The backwater valve has an access point for regular cleaning and servicing. Thanks to this, the valve can function efficiently for many years.

Our Projects

No matter how diligently you maintain order and cleanliness in your home, an unpleasant odour from the drainage pipes can spoil the atmosphere. While preventing overland flooding is nearly impossible, minimizing sewage-related issues is entirely feasible. Installing a backwater valve rebate in Toronto is the best solution in such a case.

Benefits of Our Backwater Valve Installation

No matter how diligently you maintain order and cleanliness in your home, an unpleasant odor from the drainage pipes can spoil the atmosphere. While preventing overland flooding is nearly impossible, minimizing sewage-related issues is entirely feasible. Installing a Toronto backwater valve is the best solution in such a case. The key advantages are as follows:

Property Protection

During heavy rainfall, your home is at maximum risk of flooding and sewage system backups, primarily because they get clogged with tree branches and other debris. Water can infiltrate your home through the basement, causing damage to your property one way or another. A backwater valve protects your home and the items inside it.

Long-Term Cost Savings

Even though installing a backwater valve is not a cheap endeavor, the consequences of heavy rainfall and sewage water entail significant losses for homeowners every year. For this reason, the initial home upgrade of installing the valve becomes significantly more cost-effective than yearly repair work.

Increases Property Value

Installing a backwater valve can increase the final value of your property in case of resale. Potential buyers may see this as an excellent investment, increasing the likelihood of purchasing the property from you.

Process of Backwater Valve Installation

Specialists from Quality Age Build conduct the installation of a backwater valve in stages:


First, technicians conduct a thorough inspection of the area for the future installation of the backwater valve. Then, they remove any obstacles and ensure alignment with the existing drainage system.


Sometimes, there is no clear access to the main sewer line. Our excavation company in Toronto performs excavations on the site to create the perfect location for placing the backwater valve.


The swing check backwater valve is mounted in the main sewer line, providing one direction for wastewater flow and preventing backflow.

Connection to the Main System

The specialist connects the backwater valve to the plumbing system, ensuring its waterproofing and optimal operation.

Functionality Check

Installation of the backwater valve requires testing to ensure proper operation. If necessary, the technician will adjust the mechanism so that the valve operates efficiently and can prevent the backflow of sewage water.


Upon completion of all work, the technicians backfill the excavated area, restoring its initial appearance. We guarantee that all your property will remain intact and safe.

Why to Work With Us

Our specialists are well-versed in providing top-notch backwater valve installation services, and that’s not our only advantage.

Impressive Experience

With over a decade in the market, we have the expertise to fulfill our clients’ requests and preferences swiftly and efficiently.

Exceptional Service

We put in all the effort to rid you of basement flooding issues, starting from the installation of systems and extending to their ongoing maintenance.

Expert Guidance

Do you have any questions or doubts? You can always turn to us to receive comprehensive information about our services!

Affordable Prices

We adapt to your financial capabilities and offer convenient payment methods and reasonable prices, making our services available to all.

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What are the common reasons for the failure of backwater valves?

The most common reasons for the valve failure are: sewage system blockages, improper installation of the mechanism, wear or damage, as well as high water pressure, which leads to its malfunction.

How Much Does a Backwater Valve Installation Cost?

During the initial stages of construction, backwater valve installation cost Toronto will be just $500. However, if you need to integrate it into an already completed home structure, the price will range from $200 to $5,000 – depending on the rebate offered.

What is the typical expense associated with installing a backwater valve?

The main expenses for installing a backwater valve include labor (pipefitters, plumbers, and sometimes electricians), equipment rental, and transportation. It is important to note that these costs can add up quickly.

Our Happy Clients

Construction workers applying a black waterproofing membrane to the exterior foundation walls of a building, set against a sandy brick wall and clear skies above.