Fiberglass Windows

Fiberglass itself is nothing new. It’s been floating boats and adding strength to ladders for years. But until recently, the complex profiles required for window designs such as bay windows have been impossible to attain with fiberglass. Milgard’s R&D team faced this challenge and engineered a window and door system that’s impervious to water, cold, heat, insects, salt air and ultraviolet rays. The end result: efficient fiberglass windows and doors that maintain their beauty in every season, in any climate.​

Fiberglass Window Choices

Milgard gives you three distinctive choices when it comes to fiberglass windows and doors: Ultra™, Essence™ and WoodClad™. When you look at a Milgard Ultra series, you might think that it’s painted wood. Or in the case of our Essence or WoodClad series, you might even think it’s made out of solid Douglas fir. The truth is, our fiberglass windows give you the beauty of a wood window and the durability of a fiberglass frame. Make no mistake, our fiberglass windows will not crack, peel, warp or stick. A statement no wood window manufacturer can make.


Ultra™ Series Fiberglass Windows

Ultra™, as the name implies, is the ultimate window frame material. Ultra fiberglass windows combine a traditional wood-frame profile with the strength, stability and zero maintenance of fiberglass. Our Ultra series withstands the harsher sides of Mother Nature like no other window, yet look like painted wood. You get all the beauty, but none of the maintenance. You can order our fiberglass windows in eight colors. Or you can order your door primed and ready for your custom colors. A wide selection of hardware and grid options are available.


Woodclad™ Series Fiberglass Windows

Milgard WoodClad™ fiberglass windows satisfy both the architectural purist and the realist. You get a carefree fiberglass exterior, plus the beauty of a wood interior. And we do mean beauty. Our windows feature furniture-grade, clear, vertical-grain Douglas fir. Without a nail hole or staple on them. What’s more, since we use solid stainless steel screws throughout, there’s nothing to corrode or rust. Ever. You can stain our wood interiors clear or finish them to match existing woodwork in everything from a maple to a cherry appearance. For the exterior, you can order Milgard WoodClad windows in five baked-on standard exterior colors. A wide selection of hardware and grid options is available.

Should you replace your windows?

Research shows residential window replacements are one of the best investments of any home improvement project. Not to mention energy efficiency or the transformation of your home’s appearance.

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Glass Facts

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