Protect North Bay's drinking water and stay compliant with municipal regulations. We provide certified annual backflow testing, backflow preventer installation, and cross-connection control for residential and commercial properties across the Nipissing District.
North Bay Plumbers provides certified backflow testing and prevention services across North Bay, Callander, and Sturgeon Falls. Annual backflow testing costs $100–$200 and includes a full differential pressure test of your backflow prevention device, a signed certification report, and filing with the City of North Bay water department. We install all types of backflow preventers — reduced pressure zone (RPZ) valves, double check valve assemblies, and pressure vacuum breakers — for $500–$1,500. Our testers are OWWA (Ontario Water Works Association) certified to meet all Ontario Building Code cross-connection control requirements. Call 705-482-1253 to schedule your annual test or new installation.
Backflow prevention isn't optional — it's required by the City of North Bay to protect the municipal water supply sourced from Lake Nipissing. Here's when to call us.
A standard backflow test takes 20–45 minutes per device. We handle the testing, reporting, and municipal filing — you just unlock the door.
We start with a visual inspection of the backflow preventer — checking for physical damage, corrosion, leaks, and proper installation. We verify the device type, size, manufacturer, and serial number match what's on file with the City of North Bay water department.
Using a calibrated differential pressure test kit, we connect to the test cocks on the device and measure the pressure drop across each check valve. For RPZ assemblies, we also test the relief valve opening point to confirm it activates before the second check allows backflow.
Each component is tested individually — first check valve, second check valve, relief valve (on RPZ devices), and shut-off valves. We verify that each holds to manufacturer specifications and meets Ontario Building Code cross-connection control standards.
We explain the results in plain language — what passed, what failed, and why. If the device fails, we can often repair it on site (worn check valve seats, fouled springs, stuck relief valves) and retest the same visit. If replacement is needed, we provide a quote immediately.
You receive a signed backflow test report documenting all readings and results. We file the certification directly with the City of North Bay water department on your behalf — one less thing for you to worry about. You keep a copy for your records.
North Bay's municipal water system draws from Lake Nipissing — protecting that supply from cross-contamination is a shared responsibility between the city and property owners.
The City of North Bay requires annual testing of all backflow prevention devices connected to the municipal water system. Commercial properties, multi-unit residential buildings, and any property with irrigation, fire suppression, or boiler connections must have their devices tested by a certified tester and the results filed with the water department. We handle the complete process — testing through filing — so you stay compliant without the paperwork headache.
Restaurants, cafes, dental clinics, and commercial kitchens along Main Street, Ferguson Street, and the Downtown core are among the most common properties requiring annual backflow certification. These businesses typically need RPZ assemblies due to the high-hazard nature of their water connections. We service dozens of Downtown North Bay commercial properties and can coordinate multi-device testing to minimize disruption to your business.
North Bay's freeze-thaw cycle means irrigation systems are shut down every fall and reactivated in spring. When you turn your system back on in April or May, the backflow preventer needs to be tested before use. Freezing temperatures can damage internal components — seals crack, springs weaken, check valves stick. We recommend scheduling your annual test during spring startup so you're covered for the entire irrigation season.
The Ontario Building Code mandates cross-connection control on any connection that could allow non-potable water to enter the drinking water supply. This includes irrigation systems, hydronic heating, fire sprinkler connections, chemical mixing stations, and commercial equipment. Our OWWA-certified testers know the specific requirements for each hazard classification and install the right device for your application — from simple atmospheric vacuum breakers to full RPZ assemblies.
Transparent pricing for all backflow services. Annual testing is a small investment that keeps your property compliant and North Bay's water safe.
Backflow testing verifies that your backflow prevention device is working correctly to stop contaminated water from flowing backward into the municipal water supply. The City of North Bay requires annual testing on all commercial backflow preventers and residential devices connected to irrigation systems, fire suppression, or boiler systems. It protects North Bay's drinking water sourced from Lake Nipissing.
Annual backflow testing costs $100–$200 in North Bay depending on the type of device and accessibility. Residential devices are typically $100–$150. Commercial properties with multiple devices or RPZ assemblies are $150–$200 per device. Backflow preventer installation ranges from $500–$1,500 depending on the type and location.
Backflow preventers must be tested annually in North Bay. The City of North Bay water department requires a certified test report every 12 months for all registered backflow devices. Spring is the most common testing season, especially for irrigation systems that were shut down over winter. We recommend scheduling your test in April or May.
If a backflow preventer fails testing, it needs to be repaired or replaced before it can be recertified. Common failures include worn check valve seats, stuck relief valves, and fouled springs. We carry replacement parts for most common devices and can often repair and retest the same day. If the device is beyond repair, we install a new one and certify it on site.
Yes. Any irrigation system connected to the municipal water supply in North Bay requires a backflow preventer — typically a pressure vacuum breaker (PVB) or reduced pressure zone (RPZ) assembly. This prevents fertilizers, pesticides, and soil contaminants from being siphoned back into the drinking water supply. The device must be tested annually, especially after spring startup.
We install and service all types: reduced pressure zone (RPZ) assemblies for high-hazard commercial applications, double check valve assemblies (DCVA) for fire sprinkler and commercial connections, pressure vacuum breakers (PVB) for irrigation systems, and atmospheric vacuum breakers for individual fixtures. We recommend the appropriate device based on hazard level and Ontario Building Code requirements.