Window Types

St. Charles County, MO Area

Lifetime Craftsmanship Warranty

A+ Rating With the BBB

Free Estimates Within 48 Hours

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Transform Your Home with Premium Windows

Gateway Exteriors has been revolutionizing homes across St. Charles County, MO and the surrounding areas since 1982. With over four decades of experience, we've established ourselves as the premier exterior improvement contractor, specializing in high-quality window products. Our commitment to excellence is reflected in every installation we perform, ensuring that your home not only looks beautiful but also benefits from improved energy efficiency and durability. We take pride in our craftsmanship, offering a lifetime warranty that speaks volumes about our confidence in our work.

At Gateway Exteriors, we understand that your home is your most valuable asset. That's why we focus on quality over quantity, paying meticulous attention to every detail of your window installation. Our team consists of long-tenured employees who are experts in their field, and we never use subcontractors. This approach has earned us an A+ rating with the BBB and a reputation as the best quality provider in the local area. As a family-owned and locally-operated business, we treat every project with the care and respect it deserves. Don't settle for less when it comes to your home's windows. Contact Gateway Exteriors today to experience the difference that true craftsmanship and dedication can make.

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Why Choose Us

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Lifetime Craftsmanship Warranty

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A+ Rating With the BBB

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Free Estimates Within 48 Hours

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In Business Since 1982

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Product Warranties Honored

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No Subcontractors

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Fiberglass Windows

Fiberglass windows are a superior choice for homeowners seeking durability and energy efficiency. These windows offer exceptional strength, resisting warping, rotting, and corrosion better than many other materials. At Gateway Exteriors, we provide top-of-the-line fiberglass windows that combine aesthetic appeal with outstanding performance, ensuring your home remains comfortable and stylish for years to come.
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Vinyl Windows

Vinyl windows are an excellent choice for homeowners looking for a cost-effective, low-maintenance option. Our vinyl windows are engineered to provide superior insulation, helping to reduce your energy bills while maintaining a comfortable indoor temperature. With a wide range of styles and colors available, Gateway Exteriors can help you find the perfect vinyl windows to complement your home's architecture and your personal taste.
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Wood Windows

For those who appreciate classic beauty and natural warmth, wood windows are an unparalleled choice. Gateway Exteriors offers a selection of high-quality wood windows that combine traditional charm with modern performance. Our wood windows are crafted from premium materials and treated to resist decay and insect damage, ensuring they remain beautiful and functional for decades. Let us help you enhance your home's character with our exquisite wood window options.
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Recent Projects

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Here's what our satisfied clients are saying...

At Gateway Exteriors, we take pride in providing exceptional exterior improvement services to our clients. We would be grateful if you could share your thoughts about our business with others. Your feedback helps us improve and helps others make informed decisions. Please take a moment to leave a review of Gateway Exteriors and let others know what you think.