Backflow Testing Services in Deer Park, New York
Finding a reliable backflow testing professional in Deer Park, New York is essential for maintaining a safe water supply and staying in compliance with local regulations. Our directory lists 197 backflow testing companies serving Deer Park and surrounding communities including Dix Hills, West Babylon, West Islip.
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 Deer Park 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 Deer Park 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.
190 listed providers(197 total · filtered to verified testers only — show all)
Kenrick Jagassar
No reviews yet
Testing Verified · Freeport, NY · 15 mi
Jeffrey S. Krupka
No reviews yet
Testing Verified · Freeport, NY · 15 mi
Fernando Batista
No reviews yet
Testing Verified · Freeport, NY · 15 mi
Kevin A. Gallagher
No reviews yet
Testing Verified · Freeport, NY · 15 mi
Gerard E. Kane
No reviews yet
Testing Verified · Hempstead, NY · 16 mi
Leonel I. Gamez
No reviews yet
Testing Verified · Hempstead, NY · 16 mi
Backflow Friends
Testing Verified · Hempstead, NY · 16 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
Long Island Backflow Testing
Testing Verified · Mineola, NY · 17 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 GoogleMichael F. Popper
No reviews yet
Testing Verified · Glen Cove, NY · 17 mi
Roberto C. Guardado
No reviews yet
Testing Verified · Glen Cove, NY · 17 mi
Albert Lucas
No reviews yet
Testing Verified · Glen Cove, NY · 17 mi
Manuel A. Mejia
No reviews yet
Testing Verified · Glen Cove, NY · 17 mi
Evangelos Diamantatos
No reviews yet
Testing Verified · Glen Cove, NY · 17 mi
Leslie J. Dow Iii
No reviews yet
Testing Verified · Glen Cove, NY · 17 mi
Gennaro Cosimo
No reviews yet
Testing Verified · Glen Cove, NY · 17 mi
Nestor G. Rivas
No reviews yet
Testing Verified · Glen Cove, NY · 17 mi
John P. Sullivan
No reviews yet
Testing Verified · Glen Cove, NY · 17 mi
Richard Rodriguez
No reviews yet
Testing Verified · Glen Cove, NY · 17 mi
Thomas M. Borroughs
No reviews yet
Testing Verified · Glen Cove, NY · 17 mi
Vito Monaco
No reviews yet
Testing Verified · Glen Cove, NY · 17 mi
Eugene E. Pinto
No reviews yet
Testing Verified · Glen Cove, NY · 17 mi
Scott D. Macnow
No reviews yet
Testing Verified · Glen Cove, NY · 17 mi
Daniel E. Purcell
No reviews yet
Testing Verified · Glen Cove, NY · 17 mi
George Martinez
No reviews yet
Testing Verified · Oceanside, NY · 18 mi
Stephen Strouse
No reviews yet
Testing Verified · Oceanside, NY · 18 mi
John J. Saracino
No reviews yet
Testing Verified · Oceanside, NY · 18 mi
Michael J. Dowling
No reviews yet
Testing Verified · Oceanside, NY · 18 mi
Christopher Seamster
No reviews yet
Testing Verified · Oceanside, NY · 18 mi
Brian Schiano
No reviews yet
Testing Verified · Oceanside, NY · 18 mi
Steven M. Fanwick
No reviews yet
Testing Verified · Oceanside, NY · 18 mi
Kostyantyn Danylkin
No reviews yet
Testing Verified · Oceanside, NY · 18 mi
Dominic T. Cervoni
No reviews yet
Testing Verified · Franklin Square, NY · 19 mi
Joseph R. Lynch
No reviews yet
Testing Verified · Franklin Square, NY · 19 mi
Michael A. D'Andrea
No reviews yet
Testing Verified · Franklin Square, NY · 19 mi
Daniel C. Simko
No reviews yet
Testing Verified · Franklin Square, NY · 19 mi
Michael Gisonda
No reviews yet
Testing Verified · Franklin Square, NY · 19 mi
Ralph D. Pugliese
No reviews yet
Testing Verified · Franklin Square, NY · 19 mi
Dennis Calandrea
No reviews yet
Testing Verified · Franklin Square, NY · 19 mi
Adriano Parente
No reviews yet
Testing Verified · Franklin Square, NY · 19 mi
Paul Bevinetto
No reviews yet
Testing Verified · Franklin Square, NY · 19 mi
Gaetano Dipasquale
No reviews yet
Testing Verified · Franklin Square, NY · 19 mi
Andrew J. Columbo
No reviews yet
Testing Verified · Franklin Square, NY · 19 mi
Scott D. Marchasin
No reviews yet
Testing Verified · Coram, NY · 19 mi
James L. Henderson
No reviews yet
Testing Verified · Coram, NY · 19 mi
Helpful resources
Frequently Asked Questions About Backflow Testing in Deer Park
Many municipalities in New York require annual backflow testing for commercial and residential properties with backflow prevention devices. Your local water authority in Deer Park can confirm the exact testing schedule and deadlines for your area. Failing to test on time may result in fines or water service interruption.
Some certified testers near Deer Park 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 Deer Park 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.
Nearby Cities in New York
For Providers
Own a Backflow Testing Business?
Claim your listing to manage your profile, track leads, and get premium placement.