About

Family owned and operated, Illiana Heating & Air Conditioning, Inc. has been serving Northwest Indiana and the South Chicago suburbs for over 30 years.  Christian owned and operated, we always do everything we can to make our customers part of the Illiana family.


click image for the full story

click image for the full story


Click image for the full story

Click image for the full story


Click image for the full story

Click image for the full story


click to learn about our philanthropic efforts

click to learn about our philanthropic efforts


some of our industry organizations

some of our industry organizations

Check out our Customer Testimonials page to hear what customers like you think about us.