Backflow Testing Services in Valley Stream, New York
Finding a reliable backflow testing professional in Valley Stream, 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 Valley Stream and surrounding communities including Elmont, Franklin Square, Rockville Centre.
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 Valley Stream 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 Valley Stream 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

Backflow Friends
Testing Verified · Hempstead, NY · 5 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 Google
AAA Backflow Certification of NY, LLC.
Testing Verified · New Hyde Park, NY · 6 mi

Long Island Backflow Testing
Testing Verified · Mineola, NY · 6 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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Maxwell Plumb Mechanical Corp.
Testing Verified · Glendale, NY · 9 mi

Harris Water Main & Sewer Contractors
Brooklyn, NY · 10 mi
“Two weeks ago, on January 13, my sewer line broke. Roto-rooter charged me over $2,200 just to diagnose the problem, and then they wanted another $34,000 to replace it. They were only going to…”
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Bluewater Plumbing, Heating and Air Conditioning
No reviews yet
Middle Village, NY · 11 mi

A Real Good Plumber, Inc.
Testing Verified · Brooklyn, NY · 12 mi
VEPO Solutions
Astoria, NY · 13 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 Google123BackFlowTesting
No reviews yet
Testing Verified · Astoria, NY · 13 mi


Backflow Prevention of New York, LLC
Astoria, NY · 14 mi
Fulton Street Plumbing and Heating
No reviews yet
Testing Verified · Brooklyn, NY · 14 mi

Order A Plumber Inc.
Testing Verified · Brooklyn, NY · 14 mi


Systems 2000
Testing Verified · New York, NY · 15 mi

Kruger's Training Academy
Testing Verified · New York, NY · 15 mi
“EXCEPTIONAL TRAINING EXPERIENCE! I recently completed the Backflow Preventer course with Kruger Training Academy, and I'm thoroughly impressed! The instructor, Dustin Kruger, is knowledgeable…”
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DEP BACKFLOW
Testing Verified · Brooklyn, NY · 15 mi
“I reached out to several companies for an inspection, and Solomon was the first to respond. He was both friendly and knowledgeable, going above and beyond to secure a next-day appointment. He arrived…”
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Neo Plumbing & Heating Corp
Testing Verified · New York, NY · 16 mi

24 Seven Plumbing Inc
No reviews yet
Brooklyn, NY · 16 mi
Helpful resources
Frequently Asked Questions About Backflow Testing in Valley Stream
Some certified testers near Valley Stream 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 Valley Stream 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 Valley Stream 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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