Is it time to replace your old windows or patio doors? Ply Gem makes it easy for you to make the right decision about which replacement windows and doors work best for your home and budget. With a full range of energy-efficient glass and frame choices and style options to choose from, the possible combinations are sure to please your sense of style and your wallet. And, because it’s a Ply Gem window, you can take comfort in knowing that your new windows and patio doors were built with superior craftsmanship to provide stylish durability.