Our all-inclusive service includes the annual testing and certification of the backflow device, as well as parts and repairs as necessary, and any and all return trips needed to maintain the full functionality of the valve until the next annual certification is needed. Taking advantage of this ongoing 365-day program will insure that you are protecting your drinking water, as well as staying compliant with the regulatory authority.

Annual Backflow Testing 

  • CBI is a fully-licensed plumbing contractor.
  • Certifies backflow prevention assemblies, ranging in size from 1/4 inch through 12 inch. 
  • Notification when you are coming due for annual testing. 
  • Prompt test submittal to water purveyor 


Sometimes backflow assemblies need to be cleaned, new rubber parts, or completely rebuilt. CBI can accommodate you needs throughout the year when you choose our all-inclusive pricing.


Water purveyor mandating a backflow installation? CBI can get the job done quickly, efficiently, and most importantly, install your devices to code. We want to make sure it is done right, from the beginning.


Emergencies happen and typically at 9pm at night. Do not worry! Simply call CBI for any and all backflow emergencies. We have inspectors ready 24 hours a day, 7 days a week, and 365 days a year.


Here’s what our happy customers had to say about our services:

The CBI team continue to amaze us. John Keating had left our home only an hour or so after inspecting our backflow valve when your final report arrived by E- mail. That’s real efficiency. We want to thank Mike Eisenauer, John, Jessica, Katie, Barb and the entire CBI family for your generous gift of time and skills. We can never thank you enough. We wish you and CBI good health and good fortune in all the years ahead.

Bill Nicholson

Chicago Backflow is a great company. They are very professional and have excellent customer service. I have been very pleased with the routine maintenance and fast response to emergencies. I will continue to use Chicago Backflow for a long time.

Anthony Graziani, Steger School District 194

The Elk Grove Park District has been a customer of Chicago Backflow for more than 15 years and in all that time, we have enjoyed terrific service, thorough repairs, numerous new installations, and fair prices!  Other companies have tried to lure us away with the promise of cheaper inspection costs, but the true value of Chicago Backflow’s service is in the warranty work they perform for us, often same day, and at no cost to us.

I highly recommend Chicago Backflow to anyone who’s serious about their water safety program.

John Walters | Building Maintenance Crew Leader, Elk Grove Park District