The answer to 'how much to fix system upgrade in my area' is that the cost can vary significantly based on several factors. The typical range for a full HVAC system upgrade in most regions is between $5,000 to $15,000, but the exact price will depend on the size of your home, the complexity of the installation, the brand and efficiency of the new equipment, and the labor rates in your local area.
It's important to get multiple quotes from licensed and experienced HVAC contractors in your local area, as they will be able to assess your specific needs and provide an accurate estimate. They can also advise you on any rebates, incentives or financing options that may be available to help offset the upfront costs.