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Residential Backflow Testing Service

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Proud to Serve Since 1993

Founded in 1993, Chicago Backflow, Inc (CBI) is a family owned company specializing exclusively in backflow testing. We offer expert testing with a comprehensive warranty – keeping you in compliance with all backflow testing requirements. We look forward to welcoming you to the CBI family!

Customers Trust CBI

“The thing we like most about CBI is their comprehensive warranty. It provides us peace of mind, knowing that they will be here at a moment’s notice if anything goes wrong with our backflow assembly.”

“CBI testers are professional, courteous, and always show up on time. I would highly recommend their services.

“We really like the CBI ‘One Price’ testing. It saves us a great deal of time knowing that everything is covered under their low testing fee.”


Many of today's major corporations trust Chicago Backflow to test and certify their backflow preventers.
Call us today to add your name to our list of satisfied customers.



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