The average cost of a new HVAC system across the country can be between $5,000 and $10,000 or more, but it can easily exceed $15,000 or more for larger homes or installations that are more difficult. It’s always advisable to get several quotes from licensed HVAC professionals to compare prices and find the best option for your needs and budget. Investing in a high-quality HVAC system can provide improved comfort and energy efficiency, as well as long-term savings on energy bills.