The answer to 'how much to replace HVAC system' is that the cost can vary widely depending on several factors. Generally, a full HVAC system replacement for a typical home can range anywhere from $5,000 to $15,000 or more. The exact price will depend on the size of your home, the efficiency and type of equipment needed, the complexity of the installation, and your local market rates.
Some key factors that influence HVAC replacement costs include the age and condition of your current system, the brand and model of the new equipment, whether ductwork needs to be replaced, and the labor costs in your area. Working with a reputable local HVAC contractor is essential to get an accurate quote and ensure the job is done properly.