Installation & testing, one call
We install backflow preventers and test existing ones, so you're not coordinating two contractors.
What Backflow Prevention Protects
Backflow is what happens when water pressure drops or reverses and pulls water back through a pipe instead of forward – potentially pulling contaminants from an irrigation system, boiler, or commercial process back into the drinking water supply. A backflow preventer is a mechanical device that stops that reversal, and it's a standard requirement anywhere a property's plumbing connects to a potential contamination source.
Where Backflow Preventers Are Used
Commercial & Multi-Unit Properties
Buildings with fire suppression, boilers, or irrigation typically need protection at the connection.
Restaurants & Food Service
Carbonators, dishwashers and pre-rinse units are common cross-connection points.
Irrigation Systems
One of the most common backflow risks, since fertilizer and soil touch the water.
Many commercial properties are required to test their backflow preventers on a regular schedule set by their water provider, insurer, or the equipment manufacturer – if you're not sure what your property's requirement is, we can help you find out and get testing scheduled on that cycle rather than after the fact.
Types of Backflow Preventers
Reduced Pressure Zone (RPZ)
The highest level of protection, typical for higher-hazard commercial connections.
Double Check Valve
Common for fire suppression systems and lower-hazard commercial use.
Vacuum Breaker
Typical for irrigation systems and hose bibs.
Why Ottawa Plumbing Experts for Backflow Work
Commercial-focused
Familiar with the property types and equipment where backflow protection is most often required.
Clear documentation
You get a clear record of what was tested and the result, for your own files.
Backflow Prevention FAQs
What is backflow and why does it matter?
Backflow is water reversing direction in a pipe due to a pressure drop, which can pull contaminants back into the drinking water supply. A backflow preventer stops that reversal.
Which properties typically need backflow prevention?
Commercial and multi-unit buildings with irrigation, fire suppression, boilers, or food-service equipment are the most common cases.
How often does a backflow preventer need to be tested?
Testing intervals are usually set by your water provider, insurer, or the equipment manufacturer – check with them for your property's specific requirement, and we can help you get on that schedule.
Do residential properties ever need backflow protection?
Yes, most commonly for an irrigation system, which is one of the more common residential cross-connection points.