Guardian Backflow Testing LLC

We at Guardian Backflow Testing LLC have been protecting water and wallets across Westchester County, New York for 35 years. We provide certified backflow testing at a flat rate of $75 per test—affordable pricing achieved through efficient operations and our commitment to serving the communities we love. Whether you own a home or manage a commercial property, our certified testers deliver accurate testing, fast results, and full compliance with Westchester water department regulations. We proudly serve Yonkers, White Plains, New Rochelle, Mount Vernon, and all surrounding areas.