I own windows which I’ve had problems since day one. The company I bought them from were unable to fix all the windows. Replacing them would have cost me at least $50,000. I called Magnetite and spoke with Alfredo, he came by measured, gave me a good price and I ordered them. They are so amazing. They stop all the drafts and keep the noise out. I am so happy with both the product and the service. If you have any problems with your windows, instead of replacing them, order these windows. My guess is it will take about 3 years and I will recouped my payment of the windows from cost savings.