The answer to 'average cost for AC' is that the average cost to install a new central air conditioning system for a typical home can range from $3,000 to $7,000 or more, depending on various factors. The total cost will depend on the size of your home, the efficiency rating of the AC unit, any necessary ductwork or electrical upgrades, and the complexity of the installation.
Other factors that can influence the cost include the brand and model of the AC unit, the difficulty of the installation site, and whether you need to replace the entire HVAC system or just the AC component. It's important to get multiple quotes from local HVAC contractors to compare prices and find the best value for your home.