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Markham Backflow - Your Experienced Local Plumbers

Looking for a reliable plumber who specializes in backflow testing, surveys, repairs, and installations? Look no further than Markham Backflow Plumbing! Our team of skilled professionals offers comprehensive plumbing solutions that address all your needs with speed and expertise, including specialized services for backflow prevention. Whether you're dealing with a leaky faucet, clogged drain, or any other plumbing problem, we've got you covered. Contact us today to learn more about how we can help you get the results you need. For the best plumbing services in your area, trust Markham Backflow Plumbing.

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Plumbing Experts in Toronto & The GTA

Markham Backflow is the Mechanical division of Van Horne Plumbing. We are a fully licensed and insured family business with over 40 years of plumbing experience servicing the Greater Toronto Area.  Our goal has been to build a family-oriented company that is honest and dependable. We have the highest expectations of ourselves and our employees. We offer competitive pricing, quality craftsmanship, and timely completion of every project.

Our team specializes in commercial plumbing with expertise in installing, repairing, and testing backflow devices.  All of our plumbers are licensed with O.W.W.A. certification. Our company is also registered with most municipalities’ backflow program sites. We can implement all of your backflow needs from obtaining the permits, installation, conducting the necessary inspections and completing the paperwork to satisfy the appropriate municipality by-laws.

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Our Services

Leaky Sink Drain Pipe
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Fixture Installations

Installation Experts in Markham, Stouffville & GTA

From toilets to dishwashers and faucets to fountains, having a talented plumber for the installation is crucial to make sure your new fixture or appliance work properly. At Markham Backflow, we will cover all your installation needs..

Being active in The GTA for years, we've seen countless DIY installations that end up doing more harm than good. The property owners may have had the right intention of saving money, but the truth is that there is no replacement for a professional plumbing installation and the money saved from doing it yourself can be easily lost with problems down the road.

In many cases, a bad installation job might not be noticed at first, slowly leaking water and causing property damage as well as increased utility bills. That's why it's important to start with a professional installation from Markham Backflow to avoid these small issues that can quickly turn into a major problem. After every installation job, we do a thorough investigation to make sure everything is working right before we leave your property.

Don't let a new appliance or fixture installation end up costing you money in the long run, contact us today for a fixture installation quote. 

Commercial Plumbing Services

The Experts in Commercial Plumbing in the Toronto & GTA

For years, Commercial properties, restaurants, retail stores and other companies have relied on Markham Backflow Plumbing to meet their Commercial Plumbing needs.  Property management companies have consistently depended on Markham Backflow to handle any commercial plumbing project. Our plumbers have been servicing the Toronto & Greater Toronto Area for many years and our licensed and fully insured team of plumbers guarantees your satisfaction. 

From plumbing repairs, maintenance, to new installations, Markham Backflow has the experience to get the job done. We are backflow experts from valve installations, backflow testing, backflow repair and surveys. We take care of all your commercial backflow requirements. We can complete repairs and service throughout the Greater Toronto Area (GTA), and are available 24/7 for emergency jobs. Book us for a service appointment today.

Residential Plumbing Services

Plumbing Experts Providing Residential Service in Stouville, Uxbridge, Markham and More.

Searching for a reputable residential plumber that can deliver with the experience and know-how to get the job done?  Markham Backflow Plumbing has built a reputation on our quality service with outstanding customer service. Our team has been providing residential plumbing for Uxbridge, Aurora, Newmarket and the Greater Toronto Area for years. We are the plumbers to call for your new installations, repairs or maintenance.  We guarantee of 100% satisfaction. As a trusted residential plumber in Uxbridge, Newmarket and surrounding areas. We can take care of your leaky pumps, toilet installs, faucet repairs and replacements. Our emergency services will be there when you need help; we are available 24/7.

If you require repairs of your bathroom fixtures, installation of a dishwasher in your kitchen, hot water tank replacement, or leaky pipe we can get the job done. Book us for a service appointment today.

Backflow Testing & Installs

Backflow Valve & Prevention Experts in Toronto & GTA

Markham Backflow has years of service and installation experience installing and repairing backflow prevention devices in Toronto, Richmond Hill, Newmarket and surrounding areas.  The Markham Backflow team will ensure a proper backflow valve installation based on your required needs. Prior to any work, we provide a detailed estimate for your approval. Our work is guaranteed and will comply with all local requirements and plumbing codes.

From valve repairs, maintenance, to new backflow valve and prevention system installations, Markham Backflow has the experience to do it right.! We are backflow prevention experts from valve installations, backflow testing, backflow repair and surveys. We take care of all your commercial backflow requirements. We can complete repairs and service throughout the Greater Toronto Area (GTA), and are available 24/7 for emergency jobs. Book us for a service appointment today.

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Contact Us

23 Kartok Ave, Stouffville, ON, L4A 0R2


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Areas Serviced

Markham Backflow Plumbing is proud to offer the best in services in the following areas





North York


Richmond Hill







East York



Peel Region


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