Mission Statement

We work to protect water resources every day, one backflow test, repair, and installation at a time.

Backflow assembly services are more than just one inspector, which is why we provide our clients with a live customer service team, ensuring you have the best customer experience in the industry. 

Our Promise

When the Ritz Carlton / Water Tower Place fire protection sprinkler systems needed to be retrofitted with two 10″ backflow assemblies, they called Chicago Backflow. With the Tower’s 365-days-a-year occupancy, shutting down the building’s water supply for any length of time was not acceptable. Therefore, there was only a two hour window to perform this monumental task. To make this task even more difficult, this would be the first time that the entire building’s water supply would be shut off since its development. If not completed in time, a $1,000 per minute penalty would be assessed to the installing contractor. All other bidders refused to bid the project, stating it “just couldn’t be done.”

Chicago Backflow performed this task with 17 minutes to spare!

Our all-inclusive service includes testing, certification, reporting to the municipality, and any repairs, parts, labor, and return trips needed to maintain the full functionality of the valve until the next required annual certification all for one price.

What sets CBI apart from the average backflow testing company is our attention to detail, commitment to professionalism and our dedication to providing our customers with exceptional service.

Our Team

Founded in 1993, Chicago Backflow, Inc (CBI) is a family owned and operated company, specializing exclusively in backflow testing, repair and installation. We are grounded in over 35 years of industry expertise and have dedicated, unmatched customer service. We pride ourselves on professionalism, expertise, and getting the job done right, the first time.

Mike Eisenhauer

Founder & CEO

Doug Eisenhauer


Barb Jonas

Director of Operations

Jessica Radtke

Customer Service Manager

Natalie Smith

Chief Financial Officer

Valerie Renteria

Accounting Assistant

JD Scorzo

Creative Director

Donna Hogel

Customer Service Agent

Donna Peña

Customer Service Agent

Tiffany Rodriguez

Customer Service Agent


Vito Tripoli


Jack Chambers


Mark Conoboy


Ryan Harrison


John Keating


Alan Kindness


JJ Kucala


Ryan Mix


Pete Rodriquez


Joe Zimmerman