Why choose Illiana? From the moment your phone call is promptly answered by our friendly and knowledgeable staff, you can tell that Illiana Heating & Air Conditioning is a different kind of contractor. Being family owned and operated for all of its almost 30 years means that you benefit from a legacy of Quality, Value and Integrity. That integrity is based on a Christian faith shared by ownership and management and permeates all aspects of the business. That foundation is the beginning of the relationships we build with our customers and team members; the Illiana Family extends outside the walls of the business to touch many lives in the community. We proudly serve most of South Chicagoland and Northwest Indiana with HVAC services.
