FAQs

How can I be sure you are the right person for the job?

With over 40 years of plumbing experience our licensed plumbers are the best in the business.  Check out our testimonials page and Google reviews for comments from our customers.

What experience do you have?

Markham Backflow is a second generation familly plumbing company with over 40 years of expereince and plumbing expertise.

What is a Backflow?

Normal water flow goes from the City's pressurized water supply system to the consumer's plumbing system. Backflow is the reversal of the normal direction of flow. Backflow may occur due to either back siphonage or back pressure.

What happens after backflow occurs?

When backflow occurs, any contaminants that had a chance to enter the water supply will start to flow towards any point of use (plumbing fixtures inside the building, other businesses/buildings connecting to the water supply system). The degree of hazard to health is dependent on the type and amount of contaminant, the situation of water use points, whether or not a protective device is in place, etc.