Recent Blog Posts

Exterior Home Improvement Contractor

St. Charles County, MO Area

Lifetime Craftsmanship Warranty

A+ Rating With the BBB

Free Estimates Within 48 Hours

Hours:

Request Lorem Epsom

Hero Request Form

Transform Your Home's Exterior with Gateway Exteriors

Since 1982, Gateway Exteriors has been the trusted name in exterior home improvements for St. Charles County, MO and the surrounding areas. We're a family-owned business that's built our reputation on delivering exceptional quality and unmatched attention to detail. With over four decades of experience, we've perfected the art of enhancing homes with custom decks, beautiful doors, reliable gutters, and much more.

At Gateway Exteriors, we believe in doing things right the first time. That's why we offer a lifetime warranty on our craftsmanship and use only the highest quality materials from trusted brands. We're proud to be a James Hardie Preferred Vendor, Mastic Elite Contractor, and LP SmartSide Preferred Installer. Our commitment to excellence has earned us an A+ rating with the BBB and the loyalty of countless satisfied customers. Ready to elevate your home's exterior? Contact us today and let's bring your vision to life.

Text START to to begin receiving offers by text.

Msgs may be autodialed. Consent to texts not required to purchase our svcs. Msg. and data rates may apply.

Text Now!

Why Choose Us

Document with a shield icon and a check mark, indicating security or verification.

Lifetime Craftsmanship Warranty

Woman icon in a circle with three stars below it, indicating a rating.

A+ Rating With the BBB

Black icon of a money bag, paper with a dollar sign, and calculator, symbolizing finance or accounting.

Free Estimates Within 48 Hours

Two briefcases with arrows showing a circular exchange.

In Business Since 1982

Box with arrow symbol and a badge with checkmark.

Product Warranties Honored

Person icon with a square and X above, indicating deletion or removal.

No Subcontractors

Siding Installation

Give your home a fresh look and improved insulation with our professional siding installation. We use durable, low-maintenance materials to ensure your home looks great for years to come.

Custom Deck Construction

Create your perfect outdoor oasis with our custom deck construction services. We'll work closely with you to design and build a deck that not only complements your home's architecture but also fits your lifestyle and budget.

Window Installation

Improve your home's energy efficiency and aesthetics with our professional window installation. We offer a variety of styles to suit any home and ensure a perfect, draft-free fit.

Door Installation

Enhance your home's security and curb appeal with our expert door installation services. We offer a wide selection of high-quality doors and ensure a perfect fit every time.

Sunrooms and Patios

Extend your living space and enjoy the outdoors year-round with our custom sunrooms and patios. We'll create a beautiful, comfortable space that seamlessly blends with your home's design.

Trim and Fascia Services

Complete your home's exterior with our expert trim and fascia services. We'll add those finishing touches that make all the difference, enhancing your home's overall appearance and protection.

Gutter Services

Protect your home from water damage with our comprehensive gutter services. We install, repair, and maintain gutters to keep your home safe and dry, no matter the weather.

Window Types

Choose from our wide selection of high-quality window types. We carry energy-efficient options from trusted brands, ensuring you get the perfect windows for your home and budget.

NOB

CP #1 Headline

CP #1 Body

CP #1 CTA Lead-in

Not valid with any other offers or promotions. Restrictions apply.

Must mention this coupon at the time of scheduling.

NOB

CP #2 Headline

CP #2 Body

CP #2 CTA Lead-in

Not valid with any other offers or promotions. Restrictions apply.

Must mention this coupon at the time of scheduling.

Recent Projects

Turbulent turquoise ocean water with white cresting wave.
Aerial view of a winding river flowing through a lush green forest.
Sand with rippled texture and long shadows, creating an abstract pattern in brown tones.
Three speech bubbles, each with ellipsis, overlapping to symbolize conversation.

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.