The answer to 'how much to replace ductwork in Chicago' is that the cost can vary widely depending on several factors, but you can typically expect to pay between $2,000 to $10,000 or more to replace the ductwork in a home. The total cost will depend on the size of your home, the complexity of the ductwork system, the materials used, and whether any structural changes are required.
For example, replacing the ductwork in a small 1,000 square foot home may cost $2,000 to $5,000, while a larger 2,500 square foot home could cost $5,000 to $10,000 or more. The type of ductwork material (e.g. metal, flexible, or insulated) and any necessary modifications to the home's structure can also significantly impact the overall cost.