Backflow Prevention Program and By-law

Contacts

Municipal Office

395 Mulock Drive P.O. Box 328 Station Main, Newmarket, Ontario
L3Y 4X7
905-895-5193

Email Us

Backflow Prevention Program Logo


The Town of Newmarket has enacted a new mandatory Backflow Prevention By-law on May 27, 2019 for all industrial, commercial and institutional, and multi-residential properties. 

The purpose of the new by-law is to ensure that the Town continues to provide safe and high-quality drinking water to our community by decreasing the chance of backflow, flowing into the public system.

Backflow happens when water from private properties flows back into the public system. These properties may have internal connections (cross connections) to water used for non-potable purposes. This can create unsafe situations because of the potential for contaminants to flow back into the drinking water system. 

The new by-law will require industrial, commercial, institutional, and multi-residential property owners to:

  • Conduct a cross connection survey of their water systems to assess risk of contamination and send the Town the results.
  • Install and test backflow prevention devices.
  • File test reports regularly with the Town.

If you have any questions, please email info@newmarket.ca.

Survey and Form Submissions

Please email all survey and form submissions to backflowprevention@newmarket.ca.

 


Resources

Companies Who Perform Backflow Surveys and Testing

​Qualified Companies
​Phone
Companies Newmarket Area:
J & S Home Services 
1-888-345-6163
​Harris Plumbing
​905-853-8520
Black Forest Plumbing
​1-866-878-0066
​​Braywood Services
905-853-6049
HMI Hastings Mechanical Inc.
​416-816-3673
Hale Mechanical
905-716-9760
Van Horne Plumbing
​416-554-2213
Other Areas:

Norline Plumbing and Mechanical Ltd
​905-737-5922
EOS Mechanical Inc.
​647-621-6811
​​M & T Plumbing
​416-783-1269
​Griffiths Plumbing

​905-475-6518

​Next Mechanical

416-879-5309

​Century Plumbing & Heating
416-485-4655
Carefree Plumbing Inc. 
416-241-9475
B. Jackson Plumbing Ltd. 
​416-321-2001
​Caledon Creek Mechanical Limited
519-927-0190
​Backflow Science
​416-268-7310
​Joe's Mechanical
​416-843-0900
​D.E. Mechanical
​416-301-7721
​Inter-Global Mechanical Services
​416-242-2532
​ProActive Water Solutions Inc
​416-249-2837
​York Regional Plumbing Limited
​416-219-4965
Naylor Building Partnerships
​905-338-8000
Bob's Plumbing Service
​905-727-3210

Modern Niagara 

​416-748-3882


Learn more

Link to: How does the water system work?

Link to: Backflow Prevention By-law