Customer Testimonials

Howell, Michigan

CIS was responsive, caring and extremely helpful in the replacement of our AC unit.  Ira Katz runs his company exactly how I would run my own business...customer satisfaction is priority!

DesPlaines, Illinois

I have worked with many different HVAC companies trying to get my ventilation equipment working properly. Finally I found CIS. One service call and it work and still works perfectly. Thank you CIS!

Buffalo Grove - Deerfield - Schaumburg, Illinois

I really enjoy working with CIS' team. They are truly concerned that my facilities HVAC equipment is running optimally. Even after a repair, CIS' staff calls me to make sure that everything is working correctly. They care unlike other companies that we have dealt with over many many years in business. I always suggest CIS whenever a friend or client asks for a great HVAC company.

Hammond, Indiana

Thank you Comfort Indoor Solutions for being there for me when I needed you most. My boiler is finally running well and more important continuously. Great job to their staff. I should have call you last year.