Fiberglass Replacement Windows in The Woodlands, TX

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Dependable Ultra Replacement Windows in Houston - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands

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When it comes to replacing your windows, there are many options to choose from — one of the most popular choices is Ultra Fiberglass Replacement Windows.

These windows represent the latest innovation in residential window solutions — blending the insulation of vinyl, the strength of aluminum, and the elegance of natural wood. Ultra Fiberglass Replacement Windows are available in a broad range of exterior colors, plus stainable wood interiors, allowing you to create a look that fits your home in The Woodlands perfectly.

Fiberglass is widely used in tough, high-performance products like boats, aircraft components, and even bridges. This trusted material delivers long-lasting reliability, which means your fiberglass windows won’t rot, rust, crack, or warp — making them a smart investment for Texas homeowners who want long-term energy efficiency and peace of mind.

The Benefits of Ultra Fiberglass Replacement Windows

Durability

Fiberglass is a thermoset material, meaning it holds its shape even under extreme temperatures. Unlike vinyl, fiberglass won’t sag or warp in The Woodlands’ hot summers. Its stable construction ensures years of smooth operation and lasting performance.

Longevity

Unlike wood windows that may decay or swell from exposure to moisture, fiberglass windows resist water damage. The humid, rainy weather in The Woodlands is no threat to these low-maintenance windows.

Maintenance

Every fiberglass window comes pre-finished with a factory-baked enamel paint that requires no scraping or repainting. If you want to update the color later, fiberglass makes it easy — just paint right over.

Versatility

Choose from five standard factory colors or customize to match your home’s style. You can also select from different grid options: between-glass, no grid, or simulated divided lites.

Beauty

With slimmer frames and sashes than vinyl, fiberglass windows offer the clean lines and upscale look of wood. Their stainable interiors also make them a natural fit for homes with wood accents.

Efficiency

Ultra fiberglass windows are among the most energy-efficient options available. They maintain a tight seal over time thanks to low expansion and contraction rates. These windows have the lowest air leakage ratings in the fiberglass category and boast high design pressure ratings for better performance.

Customize Your Ultra Fiberglass Replacement Windows — Choose from a Wide Variety of Styles, Colors, Divider Lites, Hardware & More.

Ultra Fiberglass Replacement WIndows - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands

There’s more to fiberglass than strength and beauty. Its exceptional dimensional stability keeps seals intact and minimizes air leakage. Unlike materials that expand and shrink during seasonal temperature swings, fiberglass maintains its form, keeping your indoor air in and the elements out. Don’t settle for cheaper windows that may need replacing in just a few years — invest in a window built to last.

Our Ultra Fiberglass Replacement Windows Come With A Lifetime Window Installation Warranty.

Ultra Windows with the same installation crew since 2002

Strong, energy-smart windows help protect your home and reduce heating and cooling costs year-round. That’s why Ultra Windows uses only premium materials for every installation — from AAMA-certified sealants and rust-resistant fasteners to composite shims and our exclusive weather-tight system.

With over two decades of trusted service, our experienced installation crew ensures your windows are fitted to the highest standards — backed by a lifetime installation warranty. After seeing our precision installation process, you’ll understand why so many homeowners in The Woodlands choose Ultra Windows.

Ultra Reliable Window Replacement - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands
Ultra Reliable Window Replacement - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands

Once you’ve seen our Ultra weather tight window installation system, we’re confident that you’ll want nothing less for your home. You’re only buying new windows once. Make sure they’re installed right the first time.

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WINDOW TYPES

We know that there is no “one-size fits all” when it comes to the windows and doors for your Houston area home. That's why we offer a wide selection of products that have been specifically chosen based on longevity and durability, rather than low price.

Ultra Aluminum WindowsOur Ultra Aluminum windows are strong, durable, and a great choice for  your Houston area home. Their slim profile and rigidity make them a solid choice for architects and homeowners alike.

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  50x stronger than wood windows

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Will never bow or warp like vinyl

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Black color available - without compromise

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These windows combine the efficiency, versatility and the ease of maintenance of vinyl with the strength, rigidity and longevity of an aluminum window.

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Looks like wood at a better price point

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Incredibly energy efficient

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Strong and durable

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Ultra Fiberglass

Ultra Fiberglass windows provide Houston area homeowners with a great alternative to the traditional wood window - but without the drawbacks. Versatile and beautiful, these windows will impress the most discriminating homeowner.

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Narrower frames and sashes than vinyl

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Will not bow, sag, or warp due to Texas heat

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Wide variety of colors and styles available

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Our Ultra Vinyl windows are extremely popular for home improvement projects, and they can be a good choice for Houston area homes.

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Affordable

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Low maintenance

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Energy efficient

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Ultra Wood Clad Window

Our Ultra Wood-clad windows will give your home a custom look and unique feel. Create a sense of unique beauty by installing custom wood windows in your home!

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Beautiful and versatile

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Highly customizable

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Energy efficient

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Schedule a hassle-free consultation to see window samples, hardware options, colors and more.

WINDOW STYLES

At Ultra Windows, we know one style doesn’t fit every home. That’s why we offer a variety of durable, long-lasting window styles—like double-hung, picture, and casement—so you can find the perfect fit for your Houston area home.

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Our Ultra Garden windows create a charming greenhouse effect—perfect for growing herbs, flowers, or simply adding sunlight to your space. Designed with energy efficiency and durability in mind, they’re a beautiful and functional upgrade for any Houston area home.

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands Expands outward for added space and light

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands Venting side windows for fresh air

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands Ideal for kitchens, breakfast nooks, and more

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These windows combine the efficiency, versatility and the ease of maintenance of vinyl with the strength, rigidity and longevity of an aluminum window.

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Looks like wood at a better price point

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Incredibly energy efficient

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Strong and durable

Learn More

Ultra Fiberglass

Ultra Fiberglass windows provide Houston area homeowners with a great alternative to the traditional wood window - but without the drawbacks. Versatile and beautiful, these windows will impress the most discriminating homeowner.

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Narrower frames and sashes than vinyl

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Will not bow, sag, or warp due to Texas heat

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Wide variety of colors and styles available

Learn More

Our Ultra Vinyl windows are extremely popular for home improvement projects, and they can be a good choice for Houston area homes.

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Affordable

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Low maintenance

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Energy efficient

Learn More

Ultra Wood Clad Window

Our Ultra Wood-clad windows will give your home a custom look and unique feel. Create a sense of unique beauty by installing custom wood windows in your home!

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Beautiful and versatile

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Highly customizable

Ultra Reliable Window Replacement Checkmark - Ultra Windows - Replacement Windows in Houston, Katy, Tomball, Kingwood, The Woodlands  Energy efficient

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Schedule a hassle-free consultation to see window samples, hardware options, colors and more.

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