Backflow Testing Services in Harrison, New York
Finding a reliable backflow testing professional in Harrison, New York is essential for maintaining a safe water supply and staying in compliance with local regulations. Our directory lists 25 backflow testing companies serving Harrison and surrounding communities including Port Chester, White Plains, New Rochelle.
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 Harrison 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 Harrison 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.
25 listed providers

Guardian Backflow Testing LLC
Testing Verified · Larchmont, NY · 4 mi
J&J Backflow Device Testers Inc.
Testing Verified · New Rochelle, NY · 6 mi
Pro Boyz Drain Cleaning and Plumbing Services Inc.
Yonkers, NY · 10 mi
C. C. Controlled Combustion Co. Inc.
Bronx, NY · 12 mi


Long Island Backflow Testing
Testing Verified · Mineola, NY · 16 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…”
Read more on Google
AAA Backflow Certification of NY, LLC.
Testing Verified · New Hyde Park, NY · 16 mi
VEPO Solutions
Astoria, NY · 17 mi
“Had the opportunity to come across a hardworking gentleman by the named of Alvo. He was the most respectful person ever. We exchanged info to learn he was from Jamaica and gave me some great vacation…”
Read more on Google


Backflow Prevention of New York, LLC
Astoria, NY · 18 mi
123BackFlowTesting
No reviews yet
Testing Verified · Astoria, NY · 18 mi

Systems 2000
Testing Verified · New York, NY · 18 mi


Backflow Friends
Testing Verified · Hempstead, NY · 19 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…”
Read more on GoogleMaxwell Plumb Mechanical Corp.
Testing Verified · Glendale, NY · 20 mi
Helpful resources
Frequently Asked Questions About Backflow Testing in Harrison
Some certified testers near Harrison offer same-day or emergency scheduling for urgent situations such as a failed device, a compliance deadline, or a new construction inspection. Check individual provider listings above for availability, or request a quote to find a tester who can accommodate your schedule.
Look for testers with active state certification, strong Google reviews, and experience with your type of backflow preventer (PVB, DCVA, or RPZ). Ask whether they file compliance reports with your local water authority and request a written estimate before scheduling. Our directory lists testers near Harrison with real customer reviews.
RPZ (Reduced Pressure Zone) testing verifies that your reduced pressure backflow preventer is functioning correctly to protect your water supply from contamination. A certified tester uses specialized gauges to measure differential pressures across the assembly. RPZ devices are typically required for high-hazard connections.
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 Harrison 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.
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