The answer to 'how much to replace furnace repair in Chicago' is that the cost to replace a furnace can vary widely depending on several factors. Typical ranges for a full furnace replacement in the Chicago area are generally between $3,000 to $7,000, though costs can be higher or lower depending on the specific needs of your home.
Some key factors that influence the cost include the size and efficiency of the new furnace, whether any ductwork or electrical work is needed, and the complexity of the installation. Additional costs may include permits, disposal of the old furnace, and labor rates in your local area. It's best to get quotes from multiple HVAC contractors to compare options and find the right solution for your home and budget.