Keep Your Water Supply Safe with Annual Backflow Testing
Backflow occurs when contaminated water or sewage flows in the wrong direction into your clean water supply, posing a serious risk to your health and safety. This can happen due to pressure changes in the plumbing system, especially during pipe bursts or sudden water usage changes.
At Sabtech Plumbing & Drainage, we specialize in backflow testing, backflow prevention device installation, maintenance, and certification across Surrey, Langley, Vancouver, and all of Metro Vancouver. Our technicians are certified backflow testers, equipped to meet local municipal codes and compliance standards.

What Is a Backflow Prevention Device?
A backflow prevention device is a valve or mechanical device installed in your plumbing system to prevent the reversal of contaminated water back into the potable water supply. These devices are required by law in many municipalities across British Columbia—especially in commercial and multi-residential buildings.
Our Backflow Services
Backflow Testing & Certification
Municipalities require annual backflow device inspections by certified testers to ensure devices are working properly. At Sabtech, we provide prompt, accurate, and certified testing and send the required test reports to your local authority on your behalf.
We test backflow devices for:
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Commercial properties
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Residential complexes
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Industrial facilities
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Restaurants & retail spaces
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Schools, hospitals, and more


Backflow Prevention Device Installation
Don’t have a backflow preventer installed? We’ll assess your property and install a properly rated backflow prevention assembly (BFP) according to city code. We work with all device types, including:
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Double Check Valve Assembly (DCVA)
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Reduced Pressure Zone Assembly (RPZ)
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Pressure Vacuum Breaker (PVB)
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Atmospheric Vacuum Breaker (AVB)
We ensure full compliance with local water safety regulations, providing peace of mind and protection from water contamination.
Backflow Repairs & Maintenance
Is your backflow preventer leaking, clogged, or failing tests? Our licensed technicians will repair or replace faulty parts to ensure the device passes inspection. Regular maintenance can extend the life of your device and prevent emergency replacements.
Why Backflow Prevention Is Important
Without a properly functioning backflow prevention system, harmful contaminants like chemicals, pesticides, and waste can enter your drinking water. This can cause:
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Health hazards for residents or employees
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Violations of local plumbing and health codes
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Fines or penalties from city authorities
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Shutdowns or disruptions in commercial operations
Annual backflow testing is not just smart—it’s mandatory.


Annual Backflow Testing Made Easy
Most cities, including Surrey, Langley, and Vancouver, require that backflow devices be tested once per year by a certified professional. Skipping this can lead to water contamination, legal issues, and city-imposed fines.
Let Sabtech Plumbing & Drainage handle your compliance and testing needs with zero hassle. We’ll schedule your annual inspection, file reports with the city, and alert you for your next due date.
Service Areas
We provide backflow prevention services in:
Surrey, Langley, Delta, Vancouver, Richmond, Burnaby, Coquitlam, New Westminster, White Rock, Maple Ridge, and other surrounding areas.