Backflow Prevention Testing in the Bronx by a Licensed Master Plumber
Ariel Services, Inc. provides backflow prevention testing for property owners and managers across the Bronx, keeping buildings compliant with New York City DEP requirements.
Led by Ariel Mizrahi, NYC Licensed Master Plumber #2402, and a member of the Master Plumbers Council of the City of New York.
Backflow Prevention Testing Services
Backflow prevention devices protect a building’s water supply from contamination by stopping water from flowing in the wrong direction. New York City requires these devices to be tested annually, with the results filed with the Department of Environmental Protection.
Our team tests, repairs, and installs backflow prevention devices, including double check valve assemblies (DCVA), reduced pressure zone (RPZ) valves, and pressure vacuum breakers (PVB), for buildings across the Bronx, filing the required GEN215B documentation with the DEP.
A backflow device that fails its annual test needs to be repaired or replaced before it can pass. We handle the full process, from testing through filing, so the building stays compliant.

Which Buildings Need Backflow Prevention Testing?
Buildings with certain water system connections, including many with fire sprinkler systems, boilers with chemical treatment, or connections that pose a contamination risk to the public water supply, are required to have a backflow prevention device tested annually. The Department of Environmental Protection typically notifies building owners when their annual test is due.

Backflow Prevention Testing in the Bronx: Local Considerations
Fordham Road, Arthur Avenue in Belmont, and East 149th Street are lined with restaurants and shops beneath apartments, and buildings that combine food service with housing often need a backflow device to protect the public water supply.
Around Soundview and Castle Hill, some older apartment buildings have devices that have been in service for many years, and an aging device is more likely to need repair or a replacement part to pass its annual test.
A prewar walk-up in the South Bronx and a newer building in Riverdale face the same yearly DEP deadline, and our team files the GEN215B results for each once testing is complete.
Frequently Asked Questions
What is backflow prevention testing?
Backflow prevention testing checks that a device designed to stop contaminated water from flowing back into the public water supply is working correctly.
How often is backflow testing required in the Bronx?
New York City requires backflow prevention devices to be tested annually, with results filed with the Department of Environmental Protection.
What happens if my backflow device fails its test?
A failed device needs to be repaired or replaced and then retested before it can pass and be filed as compliant.
What types of backflow devices does Ariel Services, Inc. work with?
Ariel Services, Inc. tests, repairs, and installs double check valve assemblies (DCVA), reduced pressure zone (RPZ) valves, and pressure vacuum breakers (PVB).
Does Ariel Services, Inc. provide backflow prevention testing throughout the Bronx?
Yes. Ariel Services, Inc. provides backflow prevention testing for buildings across the Bronx, including Riverdale, Fordham, Parkchester, and surrounding neighborhoods.
