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Backflow Prevention Services in Toronto & GTA

Preventing backflow is essential for maintaining the safety of your drinking water and preventing contamination of your property. We help property owners meet Ontario's requirements and maintain compliant water systems.

Why Backflow Prevention Matters

Water flowing in reverse direction due to pressure changes can pull tainted water into the municipal drinking water system. This happens through back pressure and back siphonage that pushes non-potable water into the wrong pipes. Cross-connection control and backflow prevention requirements of Ontario mandate that you maintain, test, and install permitted devices regardless of property type.

Without proper backflow prevention devices, contaminants from irrigation systems, boilers, industrial processes, or even garden hoses can enter the clean water supply -- posing serious health risks to your family and neighbours.

Our Backflow Prevention Services

  • Backflow prevention device installation for residential and commercial properties
  • Annual backflow testing and certification as required by Ontario regulations
  • Cross-connection surveys and risk assessments
  • Device repair and replacement
  • Compliance documentation and municipal submission
  • Emergency backflow response
Certified backflow prevention device installed on a commercial water system in Toronto

Our Process

1

Contact & Review

Our certified specialists review your water supply systems and identify cross-connection risks. We explain the requirements and provide a clear quote.

2

Schedule Service

Services are arranged at convenient times by OWWA-trained qualified persons. We arrive fully equipped to handle testing or installation.

3

Safe & Compliant

You get safe drinking water, full compliance with municipal requirements, and documented test results submitted to local authorities.

Why Choose Us for Backflow Prevention

Certified Testing

All testing performed by qualified persons as required by Ontario regulations.

Flat-Rate Pricing

Per-job billing with no hidden charges. Know the cost before we start.

25-Year Warranty

Major installations backed by our industry-leading warranty.

20+ Years Experience

Extensive backflow prevention experience across Ontario.

Backflow Prevention FAQ

Backflow occurs when water flows in the opposite direction due to pressure changes, potentially pulling contaminants into clean water lines. Devices like check valves provide the required prevention to keep your drinking water safe.
Most properties with pools, boilers, or sprinkler systems require appropriate backflow prevention devices. Municipal cross-connection control programs evaluate specific hazards for each property to determine what is required.
Most municipalities require the testing of backflow prevention devices annually. Test results must be submitted to your municipality via their online forms or designated submission process.
Moderate-risk properties typically need double check valve assemblies, while higher hazard situations require reduced pressure (RP) assemblies. The appropriate device type is determined based on a professional assessment of your property's specific risks.
Only qualified persons such as a certified tester, licensed plumber, or fire system sprinkler fitter can perform this work per Ontario requirements. Our team is fully certified to handle all backflow prevention installations and testing.

Protect Your Water Supply with Certified Backflow Prevention

Stay compliant with Ontario regulations. Licensed, insured, flat-rate pricing.

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