The answer to 'how much to replace central air in my area' is that the cost can vary significantly depending on several factors. Typically, the cost to replace a central air conditioning system can range from $3,000 to $10,000 or more, depending on the size of your home, the efficiency of the new system, and the complexity of the installation.
Some key factors that influence the cost include the size of the home, the efficiency rating of the new system, the complexity of the installation (e.g., whether ductwork needs to be modified), and your geographic location. Additionally, the cost of labor and materials in your local area can also impact the overall price. It's important to get quotes from multiple HVAC contractors in your area to get the best sense of the typical range for your specific needs.