Backflow Prevention

Ensure safe, healthy water with professional backflow prevention

Family owned and operated since 1974, our Harris plumbers are a fully licensed Backflow Prevention team. Serving Simcoe County, York Region and Muskoka, we are capable of handing all backflow prevention requirements in both residential and commercial applications.

We work with the local municipalities of Barrie, Orillia, Collingwood, Aurora, Newmarket, Markham and Huntsville on your behalf to make it easy for you to comply with local requirements.

Should you receive a Backflow/Cross Connection related letter from your municipality, call us right away for an appointment. We’ll ensure your compliancy with your town.

Call Us 1-866-786-1801

We provide the following services:

  • Backflow Prevention Device Installations
  • Backflow Prevention Device Annual Inspections
  • Backflow Prevention Surveys & Consultations


What is Backflow?

Backflow refers to the unwanted reversal of normal water flow, which can cause contamination of a healthy water supply.

A backflow device prevents drinkable water from being contaminated or polluted by non-drinkable water due to “backflow”. This device is strategically connected into the plumbing system wherever there is the possibility of contaminated water coming into contact with drinking water. Backflow devices must be inspected annually since they have many moving parts, to ensure they are working as they should and therefore protecting the water supply they are connected to.

Backflow work must be performed by a licensed plumberwith a specific backflow license who is also recognized and authorized by your local municipality. If you receive a letter of compliance from your municipality, contact us to schedule your surveys, inspections, annual device testing and device installations.

I have had Harris Plumbing to my house for three separate jobs. They were all very courteous and prompt on all aspects of the job. I would recommend Harris Plumbing for any of your plumbing needs


Contact Harris Plumbing Today

You already trust the professional plumbers at Harris Plumbing with your home, business, cottage plumbing and septic/sewage systems. So, of course, you can also rely on Harris Plumbing for professional, licensed backflow plumbing services. If you receive a letter, call Harris Plumbing.

Servicing BarrieOrilliaMuskokaHuntsvilleAuroraNewmarket, Keswick, and beyond – give us a call today to learn more about our backflow prevention products & services or to request an appointment.

To learn more about backflow devices, please take a look at our article, ‘7 Ways To Prevent Water System Malfunction with a Backflow Device’.