Yes, window film blocks out UV rays, visible light and heat virtually eliminating all fading. There are many different factors involved in fading. The main reason is UV rays. Other factors include visible light, heat, natural aging, interior lighting and more. Because of all these factors no one can technically guarantee “no fading.” But a quality window film will stop 99% of UV rays and a large portion of visible light and heat depending upon which film you choose. After tinting many homes, businesses and vehicles, we have had no complaints about fading of furnishings. Window film is the only way to accomplish this and still retain visibility through your windows.