About

Family owned and operated, Illiana Heating & Air Conditioning, Inc. has been serving Northwest Indiana and the South Chicago suburbs for over 25 years.  Christian owned and operated, we always do everything we can to make our customers part of the Illiana family.

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

We are proud to have been voted one of the best in the Northwest Indiana Region by our faithful customers.  Find out more by clicking here 

We recently began serving Jim's Heating customers in the DeMotte area and are happy to provide our same level of service and professionalism.

You can visit our Newsletter Archive to learn even more about Illiana Heating.

Illiana Heating & Air Conditioning, Inc. Serving Northwest Indiana and South Chicago Suburbs in Illinois, including, Cedar Lake, Crown Point, Lowell, Merrillville, Dyer, St. John, Schererville, Munster, Highland, Griffith, Crete, Beecher, Lynwood, South Holland, Lansing, Glenwood, Homewood, Valparaiso, Hobart, Hebron, Demotte, Wheatfield, Roselawn, Lake Village.