The State of Illinois requires annual backflow testing to insure your safety by protecting drinking water from harmful toxins such as: fertilizers, pesticides, fire protection chemicals and many more household products.

Backflow Testing Services, Inc. is Northern Illinois’s Premiere Backflow Prevention Company. We are dedicated to simplifying all your backflow prevention needs including testing, certification, surveys, retro fitting, repair, and maintenance.

We are recognized by Chicago, Cook County, and ALL Suburban Water Purveyors as a qualified backflow testing company. Having over 30 years of commercial and residential backflow prevention experience, we are able to manage all sizes and models of backflow assemblies that are manufactured for all types of water distribution systems. We are here to help!