The answer to 'how much does system upgrade cost in Chicago' is that the cost of an HVAC system upgrade can vary significantly depending on several factors. Generally, homeowners in the Chicago area can expect to pay anywhere from $3,000 to $15,000 or more for a full system replacement or major upgrade. The exact cost will depend on the size of your home, the type of system you choose, any necessary ductwork modifications, and the complexity of the installation.
It's important to get quotes from multiple licensed and experienced HVAC contractors in your local area, as they will be able to assess your specific needs and provide an accurate estimate. Factors that can influence the cost include the efficiency rating of the new equipment, the brand and model, any additional features or smart home integration, and the labor required for the installation.