fiberframe replacement fiberglass windows

Limited Lifetime Warranty

Only FiberFrame offers a limited lifetime warranty on its fiberglass windows and doors.

+ Learn more

Double Hung

Double Hung

Traditional and elegant style. Regardless of your home style, you can’t go wrong with a classic double hung window. Designed so that both sashes move up and down, you’ll have the maximum cleaning accessibility, and the most versatile ventilation possibilities. Open the top, the bottom, or both sashes to suit your needs.


fiberframe fiberglass windows





Color Options

Choose from four standard colors, or select from the thousands of colors available from Sherwin Williams.



Grid Options

Choose grids, which are configured in-between the insulated glass, to create the desired look or architectural style of your window.



Grille Options

Choose grilles to add to the inside surface of the glass in your window.



Oak Veneer Options

Choose stainable, real oak veneer for your interior window and door frames.



Extension Jambs Options

An aesthetic and functional detail



Glass Options

Insulated Glass – FiberFrame® offers ENERGY STAR® rated insulated glass packages, including a spacer system, glass coating, and inert gas.



8000 Series Sash Locks / Sash Pulls Options

Double Hung and Slider window locks and pulls

Download a PDF brochure