The answer to 'how much to replace ductwork in Illinois' is that the cost can vary widely depending on several factors. Typically, the cost to replace ductwork in Illinois ranges from $2,000 to $10,000 or more, depending on the size of your home, the complexity of the ductwork, and the materials used.
Factors that influence the cost include the square footage of your home, the number of vents and registers, the accessibility of the ductwork, the type of ductwork (rigid or flexible), and any necessary structural changes to accommodate the new ductwork. Additionally, the cost of labor and the experience level of the HVAC contractor can also impact the overall price. It's essential to get multiple quotes from local HVAC companies to ensure you get the best value for your home.