Every water service connection in your building must have…

Commercial Plumbing

Backflow Prevention (BFP) and Water Safety By-laws

All Toronto and GTA municipalities and most others across Ontario have mandated the installation and annual testing of preventer systems. Backflow Prevention Device Testing is critical to ensure your internal systems cannot flow back into the water supply causing cross-contamination, damaging floods, and costly fines.

Companies and government agencies from across Ontario have depended on DAEL Thermal’s commercial plumbing and backflow prevention expertise.  Our team of licensed technicians ensures that all equipment, old and new, is installed, maintained, and tested and calibrated properly to certify compliance with regulations by various regulatory bodies and legislation.
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Why DAEL Thermal? We Know BFP.

We understand your need to operate at peak efficiency. We’re there when you need us 24/7/365.

  • Do you have a backflow preventer system or flow control valve installed at every water service connection in your building?
  • Did you know that each device must be tested upon installation, repair, relocation or replacement?
  • Have you received a Notice of Contravention from your municipality demanding that you test or install backflow preventers?
  • Have you booked your next annual inspection?

Backflow Preventer Services:  Rely on DAEL’s experienced backflow preventer experts to ensure every connection in each location is compliant.

What We Do:  Count on on our team to install new systems, conduct compliance inspections for existing ones, identify deficiencies and repair or replace, and provide concrete preventative maintenance recommendations.

What Are Your Options? The type of device is based on the hazard level at which your facility has been classified. We will provide recommendations, costs, and timelines for implementation.

Certified Testing Specialists:  Our licensed technicians are certified to install, service, and use properly calibrated testing equipment.

Compliance and Reporting: DAEL adheres to the building and municipal codes, CSA, and manufacturers specifications. Our BFP Device Testing Survey includes a detailed test report demonstrating your compliance.

Why Test? It’s More Than By-law Compliance.  Avoid costly flood damages, insurance claims, and service interruptions. Did you know that the double-check valve assembly, DCVA must be tested at least annually to ensure proper operation? There is no visible warning of a failure.

No Paperwork for You!  We source all building permits and process all municipal paperwork.

Make DAEL Thermal Your
One-stop Solution for BFP


Learn More. Contact us to explore your options or set up a service visit.

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Backflow Preventer Systems for Petro-Canada™

De Melis Construction engaged DAEL Thermal to conduct preventative maintenance on the backflow preventer systems of several Suncor Petro-Canada™ service stations.

During the maintenance program it implemented, DAEL quickly and efficiently corrected any deficiencies discovered, and submitted all of the required paperwork to the respective municipalities to ensure each location stayed in compliance.

We proactively provided recommendations on potential plumbing issues.

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