The answer to 'how much does system upgrade cost in my area' is that the cost of upgrading an HVAC system can vary widely depending on several factors. The specific cost for your home will depend on the size of your home, the type of system you need, the complexity of the installation, and your local labor and material costs.
Generally, you can expect to pay anywhere from $3,000 to $15,000 or more to upgrade your HVAC system. Higher-end systems with advanced features and increased energy efficiency will be on the higher end of that range. It's essential to get quotes from multiple local HVAC contractors to understand the typical costs in your area.