C650 Ultra™ Series

Fiberglass Windows
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Exceptionally strong and low-maintenance, the C650 Ultra™ Series windows are made from fiberglass, one of the most durable materials on the window-and-door market. They’re ideal for any style and climate.

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Exterior colors
Bark
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Black Bean
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Frost
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Harmony
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Harmony
Interior colors
Bark
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Black Bean
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Harmony
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Harmony
White
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Exterior colors Interior colors
Bark
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Black Bean
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Frost
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Harmony
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Harmony
Bark
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Black Bean
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Harmony
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Harmony
White
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Horizontal Slider
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Single-Hung
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Casement
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Awning
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Picture
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Bay & Bow
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Radius
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Sliding Glass
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Swinging Patio
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Energy efficiency

Fiberglass windows offer superior energy performance because they do not expand and contract with the weather. This quality makes them a first-rate choice for homes in regions that experience extreme temperatures.

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Color options

Available in four exterior colors – black bean, bark, harmony, and frost – these fiberglass windows can complement any architectural design. Choose a color matched or white interior.

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Aesthetic accessories

C650 Series windows offer a wide variety of grid types, patterns, and combinations to match your home style.

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Beautiful Hardware

Attractive, durable, secure, and easy to operate, C650 Ultra Series hardware hits all the right notes. It’s available in white, clay, dark bronze, brushed chrome, or black.

Could not be happier

“Just got this window installed and I could not be happier with the result.”

Windows make a statement

“They are beautiful and make a statement.”

Solid craftsmanship

“Solid craftsmanship and they bring a higher level of sophistication to the home.”

Reviews
C650 Ultra™ Series Windows