Repair Your Existing System

Reliable. Trusted. Guaranteed. That's how you'd describe our family of services here at Illiana Heating & Air Conditioning. For over 30 years, your friends and neighbors have counted on our no-nonsense approach to servicing South Suburbs & NW Indiana's heating, ventilation and air conditioning needs.

We provide authorized warranty service for American Standard & Armstrong. We also provide post-warranty service for all makes and models.

Our service fleet utilizes the latest diagnostic technologies to quickly and efficiently determine the nature of your service problem. Our technicians are fully trained and certified by the EPA. Most are also NATE Certified.

We are available for emergency repairs if needed during our extended hours in the evening and on weekends. Our regular service hours are 8:00am - 4:00pm Mon - Fri.

You can depend on Illiana Heating to help you stay cool through the heat, warm through the cold and comfortable every day in between. Call us first for your next service need. 


Find out more about the Repair or Replace decision in our Blog post here