I have called every 2 to 3 wks. for up dates. I am told they are on the way, they are here somewhere, they need to be checked out, we will call you. I have spoken to 3 people so far, however the last lady was very condescending in her replies to my questions. This is no way to deal with customers. How long do I have to wait? One of the excuses was the windows may not be available any more. They are standard. Maybe it's because I have a lifetime guarantee and they are 18 years old? I try my best to take care of them and clean them regularly that is how I find these problems. I have also said I was sorry that I am still here however there is a guarantee.