About 3 years ago I replaced all 36 windows in my house with new Hometech windows. Since then nearly 40% of the new windows have been faulty (broken seals) and have had to be replaced. As great an inconvenience as this is, what makes it worse is that Hometech charges me to replace their failed units. So far, the installation charges have been $200.00 over the last three years, and I fully expect their windows to keep failing! Check with your window installation company and make sure that they do not use Hometech Windows.