The answer to 'how much to fix evaporator coil in Illinois' is that the cost can vary widely depending on several factors. Typically, the cost to repair an evaporator coil in Illinois can range from $300 to $1,500 or more. The exact price will depend on the type and size of the unit, the extent of the damage, labor costs in your local area, and whether any other HVAC components need to be replaced.
Some key factors that influence the cost include the age and condition of the system, the accessibility of the coil, and whether the repair can be done on-site or requires the coil to be removed and taken to a shop. Larger or more complex systems will generally cost more to repair. It's important to get quotes from multiple local HVAC contractors to compare prices and find the best value for your home.