The answer to 'how much to replace an air handler in Illinois' is that the cost can vary significantly depending on several factors. As a general range, you can expect to pay between $2,000 to $5,000 for a new air handler installation. The exact price will depend on the size and efficiency of the unit, the complexity of the installation, and your local labor rates.
The size of your home, the accessibility of the installation site, and any necessary ductwork modifications can all impact the final cost. It's best to get quotes from multiple HVAC contractors in your local area to get the most accurate estimate for your specific needs.