What is the main advantage of a ceiling fan? The price. While the professional installation of air conditioning units costs more than $5600, ceiling fans can generally be found for under $500 and do not require expert knowledge to install. Ceiling fans can be found in various colors and shapes that can fit any person's decorative sense and enhance the look of any room. Moreover, as they are cheaper, you can use the money you save on other aspects of your home that require investment.