The answer to 'how much does AC cost in Illinois' is that the cost of an air conditioning system can vary significantly depending on several factors. In general, you can expect to pay anywhere from $3,000 to $10,000 or more for a new central air conditioning system installed in an average-sized home in Illinois.
The size of the home, the efficiency rating of the unit, the complexity of the installation, and the brand and model you choose are all key factors that influence the overall cost. Additionally, labor rates and permit fees in your local area can also impact the final price. It's important to get multiple quotes from licensed HVAC contractors in your area to get the best deal.