The cost of AC installation can vary widely based on the size and type of AC unit, the complexity of the installation, and your location. On average, homeowners can expect to pay between $3,000 to $7,000 for AC installation, including both equipment and labor costs. However, prices can range from $2,500 to $10,000 or more, depending on the specifics of your installation project. It's advisable to obtain quotes from multiple reputable HVAC contractors to get a better understanding of the cost for your specific needs.