We had over twenty windows replaced by AWP Advanced Window Products. When the ice storm hit Houston this year we couldn't keep the house warm. Our old windows were terrible. We are super pleased with the new windows. I am saving about one hundred fifty dollars a month in electricity. The house stays drier because humidity can't get in. It's also much easier to open and close the windows which motivates me to open the windows up and get fresh air in. They are also very attractive. We got the single-hung style so they would be easy to clean. AWP Advanced Window Products were cheaper than some other companies. The installers were in and out in one day. We are very happy with the service and quality. FIve stars.