The answer to 'price of new system upgrade' is that the cost can vary significantly depending on several factors. The typical range for a new HVAC system upgrade is usually between $3,000 to $12,000, but the final price will depend on the size of your home, the efficiency rating of the new system, the brand and model, the complexity of the installation, and your local market conditions.
Higher-efficiency systems, larger homes, and more complex installations will generally cost more. It's essential to get multiple quotes from reputable local HVAC contractors to find the best value for your home and budget.