BACKFLOW TESTING & CERTIFICATION — COOK COUNTY & LAKE COUNTY, IL

A backflow preventer keeps contaminated water from siphoning back into the clean water supply. Cook County and the City of Chicago require these devices to be tested on a regular basis, and our CCCDI-certified technicians handle the testing, certification paperwork, installation, and repair so your property stays compliant.

We test, install, and repair backflow preventers for homes and businesses across Chicago neighborhoods and the North Shore, and provide annual backflow certification for Cook County and City of Chicago compliance. New construction and remodel projects that need a backflow preventer added to the water supply can also pair this work with our water service line replacement service.

All work is performed by Illinois-licensed Master Plumbers (IL License #055-009344) and permits are obtained as required by law. Every technician walks you through the diagnosis, shows you the problem, and gives you a written price before touching a single pipe.

We serve both residential properties and commercial buildings — restaurants, offices, retail stores, and multi-unit buildings — throughout Cook County and Lake County, IL.

What's Included