Are Marvin products energy efficient?

A. Yes. Marvin products with insulating glass, Low E II and Argon glazing meet Energy Star Requirements in all four regions. Q. What is the difference between an insert window and a standard, full frame window? A. An insert window is installed into the existing window frame. Insert replacement windows are installed without disturbing the interior trim or exterior of your home. Full frame replacement windows are appropriate when the entire window needs replacement—for example, when it's substantially out of square or has deteriorated beyond repair. The window, including sash, frame and casing is replaced. Q. What is the difference between the Ultimate Insert Double Hung Window and the Tilt Pac Sash Replacement System? A. The Ultimate Insert Double Hung is a complete window unit used when higher performance or traditional interior aesthetics are desired. The frame of the Ultimate Insert Double Hung is placed inside the frame of your existing window. In comparison, the Tilt Pac consists ...  more