About CBI
Chicago Backflow Cares About YOU
Chicago Backflow, Inc. (CBI) works to protect water resources every day through backflow testing, repair, installation and emergencies. CBI’s attention to detail, commitment to professionalism, industry-leading expertise and dedication to providing our customers with exceptional service 24 hours a day, 7 days a week…sets us apart from the average backflow testing company. Chicago Backflow, Inc. began its journey as a family-owned business and remains so to this day. YOU are part of the ever-expanding Illinois and Indiana backflow family.
Chicago Backflow, Inc. (CBI) works to protect water resources every day through backflow testing, repair, installation and emergencies. CBI’s attention to detail, commitment to professionalism, industry-leading expertise and dedication to providing our customers with exceptional service 24 hours a day, 7 days a week…sets us apart from the average backflow testing company. Chicago Backflow, Inc. began its journey as a family-owned business and remains so to this day. YOU are part of the ever-expanding Illinois and Indiana backflow family.


Professional Inspectors
Whether your backflow preventer needs cleaning, or is not functioning properly, the plumber acting as a backflow inspector may not have the experience or knowledge to fix the problem, if they even catch it at all! This is not, and never will be the case with Chicago Backflow. Each and every time you schedule your backflow test and certification with CBI, guaranteed your inspection will be completed by a fully licensed backflow inspector that ONLY tests, certifies, and repairs/installs backflow preventers. Backflow testing is CBI’s specialty.
Knowledgeable Office Staff
The combined knowledge of backflow and backflow operations of over 50 years, makes our office staff the best in the business! We handle thousands of inquiries throughout the year with care, expertise, professionalism, urgency and sometimes… a bit of humor!
When you call or email Chicago Backflow, you are talking to someone that truly cares about getting your backflow needs taken care of quickly and efficiently.



Knowledgeable Office Staff
The combined knowledge of backflow and backflow operations of over 50 years, makes our office staff the best in the business! We handle thousands of inquiries throughout the year with care, expertise, professionalism, urgency and sometimes… a bit of humor!
When you call or email Chicago Backflow, you are talking to someone that truly cares about getting your backflow needs taken care of quickly and efficiently.



Meet the CBI Family – The Heart of Backflow In Illinois
Executives








Michael Eisenhauer
Co-founder
29 years
Doug Eisenhauer
President
17 years
Executives




Michael Eisenhauer
Co-founder
29 years




Doug Eisenhauer
President
17 years
Executives




Michael Eisenhauer
Co-founder
29 years




Doug Eisenhauer
President
17 years
Office Staff




Natalie Smith
Chief Financial Officer
19 years




Barbara Jonas
Director of Operations
27 years



Jessica Radtke
Customer Service Manager
17 years




Megan Demereckis
Brand Ambassador
16 years




Valerie Renteria
Accounting Assistant
8 years




Donna Hogel
Customer Service
17 years




Nicholas Smith
Customer Service
10 years




Tiffany Rodriguez
Customer Service
5 years




Marie Lewis
Customer Service
1 year
Office Staff




Natalie Smith
Chief Financial Officer
19 years




Barbara Jonas
Director of Operations
27 years



Jessica Radtke
Customer Service Manager
17 years




Megan Demereckis
Brand Ambassador
16 years




Valerie Renteria
Accounting Assistant
8 years




Donna Hogel
Customer Service
17 years




Nicholas Smith
Customer Service
10 years




Tiffany Rodriguez
Customer Service
5 years




Marie Lewis
Customer Service
1 year
Office Staff






















Natalie Smith
Chief Financial Officer
19 years
Barbara Jonas
Director of Operations
27 years
Jessica Radtke
Customer Service Manager
17 years
Megan Demereckis
Brand Ambassador
16 years
Valerie Renteria
Accounting Assistant
8 years
Donna Hogel
Customer Service
17 years












Nicholas Smith
Customer Service
10 years
Tiffany Rodriguez
Customer Service
5 years
Marie Lewis
Customer Service
1 year
Testers




















Vito Tripoli
Superintendent
18 years
Jack Chambers
Inspector
9 years
Ryan Harrison
Inspector
7 years
Pete Rodriguez
Inspector
7 years
Alan Kindness
Inspector
7 years
























Testers




Vito Tripoli
Superintendent
18 years




Jack Chambers
Inspector
9 years




Ryan Harrison
Inspector
7 years




Pete Rodriguez
Inspector
7 years




Alan Kindness
Inspector
7 years




Mark Conoboy
Inspector
5 years




James Kucala
Inspector
5 years




Edward Hayes
Inspector
2 years




Jeffrey Witek
Inspector
1 year




Genaro Martinez
Inspector
1 year




Matthew Krolak
Inspector
Testers




Vito Tripoli
Superintendent
18 years




Jack Chambers
Inspector




Ryan Harrison
Inspector
7 years




Pete Rodriguez
Inspector
7 years




Alan Kindness
Inspector
7 years




Mark Conoboy
Inspector
5 years




James Kucala
Inspector
5 years




Edward Hayes
Inspector
2 years




Jeffrey Witek
Inspector
1 year




Genaro Martinez
Inspector
1 year




Matthew Krolak
Inspector
1 year
Mark Conoboy
Inspector
5 years
James Kucala
Inspector
5 years
Edward Hayes
Inspector
2 years
Jeffrey Witek
Inspector
1 year
Genaro Martinez
Inspector
1 year
Matthew Krolak
Inspector
1 year


Backflow Industry Trailblazers
When the Safe Drinking Water Act was federally mandated (1974), the need for testing backflow preventers became more prevalent. Mandated annual testing became a vital part of the initiative. Mike Eisenhauer, current owner of CBI, was one of the first to adapt and dedicate his business to this expanding field. He was committed to applying his plumbing knowledge to train the best backflow team available, so they could provide the top tier field work and customer service. The initial committee for safe water and backflow prevention was formed in 1985 and comprised a team of five people. Being a part of that committee helped build the foundation for the small family-owned plumbing business that was Eisenhauer Plumbing to evolve into what Chicago Backflow is today.
When the Safe Drinking Water Act was federally mandated (1974), the need for testing backflow preventers became more prevalent. Mandated annual testing became a vital part of the initiative. Mike Eisenhauer, current owner of CBI, was one of the first to adapt and dedicate his business to this expanding field. He was committed to applying his plumbing knowledge to train the best backflow team available, so they could provide the top tier field work and customer service. The initial committee for safe water and backflow prevention was formed in 1985 and comprised a team of five people. Being a part of that committee helped build the foundation for the small family-owned plumbing business that was Eisenhauer Plumbing to evolve into what Chicago Backflow is today.
CBI = Backflow Industry Trailblazers
When the Safe Drinking Water Act was federally mandated (1974), the need for testing backflow preventers became more prevalent. Mandated annual testing became a vital part of the initiative. Mike Eisenhauer, current owner of CBI, was one of the first to adapt and dedicate his business to this expanding field. He was committed to applying his plumbing knowledge to train the best backflow team available, so they could provide the top tier field work and customer service. The initial committee for safe water and backflow prevention was formed in 1985 and comprised a team of five people. Being a part of that committee helped build the foundation for the small family-owned plumbing business that was Eisenhauer Plumbing to evolve into what Chicago Backflow is today.
When the Safe Drinking Water Act was federally mandated (1974), the need for testing backflow preventers became more prevalent. Mandated annual testing became a vital part of the initiative. Mike Eisenhauer, current owner of CBI, was one of the first to adapt and dedicate his business to this expanding field. He was committed to applying his plumbing knowledge to train the best backflow team available, so they could provide the top tier field work and customer service. The initial committee for safe water and backflow prevention was formed in 1985 and comprised a team of five people. Being a part of that committee helped build the foundation for the small family-owned plumbing business that was Eisenhauer Plumbing to evolve into what Chicago Backflow is today.