The answer to 'how much to replace zone control system in Chicago' is that the cost can vary significantly depending on several factors. Typical ranges for a full zone control system replacement in the Chicago area are generally between $2,500 to $6,000, but the exact price will depend on the size of your home, the complexity of the existing system, the type of new equipment installed, and the labor costs in your local market.
Some key factors that influence the cost include the number of zones, the type of zoning technology (e.g. motorized dampers, zone valves, or ductless mini-splits), whether any ductwork modifications are required, and the accessibility of the existing system. Hiring a reputable HVAC contractor who can evaluate your specific needs and provide a detailed quote is essential to getting an accurate cost estimate.