One of the biggest questions I had when I thought about sun control window film for our home was; how much maintenance is needed? I upset that I would need to have special work done to keep the sun control window film looking superb & working well. I didn’t want to need to pay for a lot of maintenance, nor did I want to need to update it once a year. After doing a lot of research, I found out that window film unquestionably didn’t need a lot of maintenance for it to do its task. If the window film is localed on the inside of the window, the owner may want to polish it with a lightweight silicone polish. This keeps the window film from becoming cloudy. Normally, if the window film does become cloudy, it is within the first couple afternoons. This comes from a small amount of moisture being left beneath the film. After a short time, this moisture dries, leaving a smooth & polished look to the window film. You can consistently scrub water spots with a soft dry cloth. If there happens to be a bit of adhesive tape on the window film, all you need to do is wash it scrub with a bit of nail polish detachr, then wash it. In all reality, there is less maintenance to window film, than there is to a normal window. When asked what I wanted the window film for, I told them our child was reading to play ball. I was afraid the ball would chop the window, & I had read the window film could keep the window from shattering.