The answer to 'how much to replace evaporator coil in Illinois' is that the cost can vary significantly depending on several factors. Typically, the cost to replace an evaporator coil in Illinois can range from $800 to $2,500 or more, including labor and materials.
The exact cost will depend on the size and complexity of your HVAC system, the accessibility of the coil, the brand and quality of the replacement coil, and the labor rates in your local area. Older or harder-to-reach systems may cost more to replace. It's important to get multiple quotes from licensed HVAC contractors in your local area to ensure you get a fair price.