Backflow Prevention Testing in Queens by a Licensed Master Plumber
Ariel Services, Inc. provides backflow prevention testing for property owners and managers across Queens, 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 Queens, 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 Queens: Local Considerations
Busy corridors like Main Street in Flushing, Steinway Street in Astoria, and Jamaica Avenue in Jamaica mix ground-floor restaurants and retail with apartments above, and that kind of mixed-use water connection is a common reason a building needs a backflow prevention device.
Older apartment buildings in neighborhoods like Elmhurst and Woodside may have backflow devices that have been in place for many years, which makes the annual test important for catching wear before it leads to a failed result.
The Department of Environmental Protection applies the same annual testing requirement across Queens, whether the device serves a decades-old walk-up or a newly built tower.
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 Queens?
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 Queens?
Yes. Ariel Services, Inc. provides backflow prevention testing for buildings across Queens, including Astoria, Flushing, Jamaica, and surrounding neighborhoods.
