The answer to 'how much to replace a furnace or air conditioner in Chicago' depends on several factors, but typical ranges can provide a general idea. Factors that affect the cost include the size and efficiency of the new system, the complexity of the installation, and any necessary ductwork or electrical upgrades.
Generally, a new furnace replacement in Chicago can range from $3,000 to $7,000, while a new central air conditioner can range from $4,000 to $10,000. However, it's essential to get local quotes from licensed HVAC contractors to get an accurate estimate for your specific home and needs.