Backflow Testing Services in Queens, New York
Finding a reliable backflow testing professional in Queens, New York is essential for maintaining a safe water supply and staying in compliance with local regulations. Our directory lists 56 backflow testing companies serving Queens and surrounding communities including Brooklyn, Elmont, Valley Stream.
Whether you need annual backflow testing, RPZ (Reduced Pressure Zone) valve inspection, or cross-connection control services, the providers listed below offer professional testing services for both residential and commercial properties throughout the Queens area.
Most water authorities in New York require annual testing and reporting for all backflow prevention assemblies. A certified backflow tester will inspect your devices, perform the required differential pressure tests, and file compliance reports with your local water authority.
Browse the listings below to compare ratings, read customer reviews, and contact backflow testing professionals near Queens directly. Use the filters above to narrow results by rating, review count, or specific services like RPZ testing and preventer installation.
Data source: Google Maps. Always verify licensing with your local water authority.
56 listed providers

Long Island Backflow Testing
Testing Verified · Mineola, NY · 11 mi
“I just hired Long Island BackFlow Test to inspect our buildings backflow. I received a letter from the city and needed to handle my situation immediately. They were quick returning my call making…”
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Backflow Friends
Testing Verified · Hempstead, NY · 11 mi
“Carlos is a stand up honest guy. I called to have a PVB/Backflow preventer tested for the water utility in my area for my lawn sprinklers. He answered my phone call right away and was very…”
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C. C. Controlled Combustion Co. Inc.
Bronx, NY · 12 mi
J&J Backflow Device Testers Inc.
Testing Verified · New Rochelle, NY · 15 mi
Pro Boyz Drain Cleaning and Plumbing Services Inc.
Yonkers, NY · 16 mi

Guardian Backflow Testing LLC
Testing Verified · Larchmont, NY · 17 mi
Helpful resources
Frequently Asked Questions About Backflow Testing in Queens
Most jurisdictions in New York require backflow testers to hold a current certification from an approved training program, typically involving classroom instruction, a hands-on practical exam, and continuing education credits. Some municipalities maintain their own approved-tester lists. Always verify certification before hiring.
Residential tests typically involve a single PVB or DCVA device and are quicker to complete. Commercial properties in Queens often have multiple assemblies, RPZ devices, and fire-line backflow preventers that require more time and specialized equipment. Pricing and scheduling may differ for each type.
Many certified backflow testers in Queens will file test reports directly with your local water authority or municipality on your behalf. Confirm this with your provider before scheduling. Some jurisdictions require the property owner to submit reports, while others accept direct submissions from the tester.
Backflow testing in Queens, New York typically costs between $50 and $200 per device, depending on the type of backflow preventer and the complexity of the installation. RPZ assemblies generally cost more to test than double check valve assemblies. Contact providers listed above for current pricing in the Queens area.
If a backflow preventer fails its annual test, the certified tester will diagnose the issue — often a worn check valve, damaged disc, or fouled relief valve. Most testers in Queens can repair the device on site and re-test it the same day. Your water authority may require the passing report within a set deadline.
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