There?s more to Penguin Windows than just good looks. Our replacement windows combine the best materials, precision engineering and time-tested construction methods so you receive customized windows that last a lifetime - GUARANTEED!. You choose the style, the frame color and glass options that will enhance your home the most. PENGUIN MEANS DURABILITY Penguin Windows come with a no worry ?Lifetime Plus? warranty. Everything about your new windows ? the frame, the sash, the seals, the screens, the glass, and even the installation ? is guaranteed to meet your highest expectations. And the warranty is transferable to the next homeowner if you decide to sell!