
Milgard Windows
Our Ultra™ Fiberglass products combine an upscale look with unmatched performance - impervious to water, cold, heat, insects, salt air, and ultraviolet rays. The result: efficient windows that maintain their beauty in every season, and any climate. Choose from Ultra™ Fiberglass or WoodClad™ the strength of fiberglass with the warmth/beauty of VG Douglas fir.

Pella Corporation
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The revolutionary, award-winning Pella® Impervia® product line, manufactured from Duracast® — the strongest, most durable material available in windows and doors — is now available for non-residential and multi-family projects. Pella’s exclusive five-layer Duracast fiberglass composite material offers the durability of aluminum, the energy efficiency of wood, and a price that is competitive with vinyl.
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See also: Plastic Windows (Residential & Light Commercial) - primarily vinyl

Milgard Windows
Our Ultra™ Fiberglass products combine an upscale look with unmatched performance - impervious to water, cold, heat, insects, salt air, and ultraviolet rays. The result: efficient windows that maintain their beauty in every season, and any climate. Choose from Ultra™ Fiberglass or WoodClad™ the strength of fiberglass with the warmth/beauty of VG Douglas fir.

Pella Corporation
![]()
The revolutionary, award-winning Pella® Impervia® product line, manufactured from Duracast® — the strongest, most durable material available in windows and doors — is now available for non-residential and multi-family projects. Pella’s exclusive five-layer Duracast fiberglass composite material offers the durability of aluminum, the energy efficiency of wood, and a price that is competitive with vinyl.