This is very true. The company I work for built a small building for a church. They installed an aftermarket window film several months after we were done. The windows started to cloud up. They called us figuring it was a warranty item but the manufacturer just laughed at our request for replacements when the rep saw that they were filmed.JLMom said:AIM, be careful that it doesn't void the warranty on your windows if you have film applied. I worked for a window manufacturer once and he had it in his warranty that any film applied to the windows would void the warranty for the windows. I can't tell you how many customers I had scream at me when they found out.
I have recently had to remove the DIY stuff from windows in our rental property...........what a horrible experience that was :-\ My advice would be to get it professionally installed.kpowell said:Last summer I bought some do it yourself stuff at Lowes and managed to get them on the western windows (where nobody could see them). It was a terrible job because of all the wrinkles, but it did the trick! to get it off you just buy some spray stuff and it should peel right off.