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Backflow Prevention Device Installation & Testing

backflow prevention device installed at commercial facility in toronto

We install, repair, and test backflow prevention devices across the Toronto and Greater Toronto area for residential, commercial, institutional, and industrial plumbing systems.

You can depend on us for all of your Toronto backflow preventer needs, we are fully licensed and certified service providers. Should you require we can provide annual inspection and testing services.

Often times a backflow prevention device are simply referred to as a backflow preventer valve. It is common to mix up a backflow preventer and backwater valve, if you are looking to prevent municipal sewer backing up you are likely interested in a backwater valve.

Double Check Valve Assembly (DCVA) Backflow Prevention Device

Double Check Valve Assembly (DCVA) Backflow Prevention Device

Backflow Preventer Installation

Which Backflow Prevention Device do You Need?

Depending on the specific use of your building the valve you are legally required to install varies. We will help you to install the correct valve for your specific facilities needs according to local bylaws and standard practices.

For example in the City of Toronto, for facilities that fall under the ‘moderate hazard’ classification a Double Check Valve Assembly (DCVA) device will be required. If your facility falls under the ‘server hazard’ classification a Reduce Pressure Principle (RP) backflow preventer will be required.

Building Permits for Installation of a Backflow Device

In most cases a building permit is required to install a backflow prevention device, we will assist you in obtaining this permit.

Toronto’s Backflow Prevention Program

Reduced Principle (RP) Backflow Prevention Device

Reduced Principle (RP) Backflow Prevention Device


The Safe Drinking Water Act and Ontario Ministry of the Environment and Climate Change regulations mandate that water purveyors protect the municipal water supply, the Water Supply Bylaw includes within a specific program describing the protection of drinking water via backflow device. Under many circumstances it is the law that your residential (buildings of 5 or more units), commercial, industrial, or institutional property possess a well-maintained backflow prevention device.

Common Uses of Backflow Valves

Some of the most common uses of backflow valves include sprinkler systems and/or irrigation plumbing. A sprinkler backflow preventer will stop water used in the sprinkler system from contaminating the potable water, and likewise an irrigation backflow preventer will eliminate any water from an irrigation system backing up into the water mains and causing contamination. Often people experience backflow prevention device leaking and this is a good time to contact us as we are licensed to diagnose and solve these types of problems.

Double Check Valve Assembly (DCVA) Backflow Preventer

Double Check Valve Assembly (DCVA) Backflow Preventer

Backflow Preventer Testing

It is important to make sure that your backflow prevention device is working as intended, as such we provide full backflow preventer testing services in Toronto and across the GTA including Mississauga, Etobicoke, and beyond.

For more information on our backwater preventer installation & testing services please contact us directly.