Backflow Prevention Testing
Backflow Prevention Testing | Commercial Plumbing | Plumbing | Thorn Hill
Whether you operate a bustling restaurant on Main or manage an industrial facility near the lake, you know that a single backflow incident can jeopardize health, halt operations, and tarnish your reputation. HEP’s certified technicians safeguard Thorn Hill’s businesses by delivering precise backflow prevention testing that keeps contaminants out of the municipal supply and your doors open. We arrive on schedule, test every valve to rigorous code, and file the necessary reports with local authorities—so you stay compliant without lifting a finger.
Backed by decades of experience in commercial plumbing, our team pairs state-of-the-art testing equipment with 24/7 emergency support. From annual inspections to on-the-spot repairs, we treat your water systems as if they were our own, minimizing downtime and maximizing safety. Partner with HEP today and experience the peace of mind that comes from knowing your backflow devices are protecting your business—and Thorn Hill’s water—around the clock.
FAQs
Why is annual backflow prevention testing required for commercial properties in Thorn Hill?
The Town of Markham and the City of Vaughan, which jointly serve Thorn Hill, enforce backflow regulations under their Backflow Prevention & Cross-Connection Control by-laws and the Ontario Building Code. These rules require most commercial, industrial, and institutional buildings to have their backflow prevention assemblies tested at least once every 12 months by a licensed plumber with CCC (Cross-Connection Control) certification. Regular testing confirms that the device is working properly to stop contaminated water from reversing direction and entering the municipal drinking-water system, protecting public health and helping your business avoid fines or water-service suspension.
What does a commercial backflow test involve?
1. Device shut-down: Our technician isolates the backflow assembly by closing the upstream and downstream shut-off valves. 2. Differential pressure check: Using a calibrated differential pressure gauge, we measure the pressure in each test port to verify that the check valves and relief valve meet the required minimum differential (usually 1.0–1.5 psi). 3. Valve operation inspection: We confirm that shut-off valves, test cocks, and relief ports operate freely and are free of corrosion or debris. 4. Documentation: Results are recorded on the municipal test form, including gauge serial numbers and calibration dates. 5. System restoration: The device is returned to service and the water supply is reinstated. The entire procedure is non-invasive to your plumbing system and follows AWWA & CSA B64 guidelines.
How long does the testing process take and will it disrupt my business?
A single test on a properly accessible device usually takes 20–30 minutes. For facilities with multiple devices, allow roughly 15 minutes per additional unit. We coordinate testing during off-peak hours or scheduled maintenance windows to minimize interruption. In most cases, only the branch of the system protected by the device is turned off, so the remainder of the building’s water service continues to operate. For critical operations, we can provide temporary bypass lines or after-hours service.
What happens if my backflow preventer fails the test?
If the assembly does not maintain the required differential pressure or shows leakage, our technician will attempt on-site cleaning and retesting. If it still fails, we will provide a written estimate for repair or replacement of internal components (springs, seats, rubbers) or, if necessary, the entire device. Repairs must be completed and the unit retested within the timeline specified by your local by-law—typically 14–30 days. We handle all municipal re-submissions so your compliance record remains intact.
Are you certified to submit backflow test reports to the local utility/municipality?
Yes. Our plumbers hold Ontario College of Trades 306A licences and have completed the OWWA Cross-Connection Control Specialist course. We are registered with both the City of Vaughan’s and the City of Markham’s authorized tester databases, allowing us to submit digital test reports directly to their compliance portals. You will receive a copy of the stamped report for your records and insurance audits.
How can I prepare my facility for a scheduled backflow test?
• Locate and label each backflow device so our technician can access them quickly. • Ensure clearance of at least 1 m (3 ft) around the assembly—remove stored items or obstructions. • Notify staff that a brief water shut-off may occur; isolate sensitive equipment if necessary. • Provide any previous test reports or device serial numbers to speed up paperwork. • For fire-protection devices, inform your alarm company that a test is taking place to prevent false dispatches. Taking these steps helps us complete the test swiftly and keeps your operation running smoothly.