When we purchased our Alaskan windows in 2012, I thought that we had paid a little too much. My wife and I have just finished our 2020 spring window washing and I would like to tell you that I have completely changed my mind. These are by far the best engineered, manufactured and installed windows that I have ever seen. We have probably saved enough in energy costs to pay for them. I am not sure if Shannon still works for the firm, but during the process she provided extraordinary service. The same for the installation crew, who drove from Georgia in order to do the work when we needed it. User's recommendation: You will not be disappointed.