perfeXion Windows is the private label brand of ABC Supply Company. These windows are made by Simonton, but offer a private label price. In our opinion this window line is the best product for the price. It offers features of windows that cost twice as much. You will get lifetime Warranty on the window, and Install and 25 year Free glass replacement. The window sash and lift system its the best in the industry. This window has more vinyl than other windows on the market, this makes the window much stronger. The Glass is in-bedded 3/4 inch into the sash, making the glass secure to endure the toughest conditions.