Welcome to Royal Sunrooms
At Royal Sunrooms, we transform ordinary spaces into stunning, light-filled environments you can enjoy year-round. Serving St. Louis MO and the Metro East region of Illinois, we specialize in designing and building custom sunrooms, screen rooms, and enclosed outdoor living spaces tailored to your home and lifestyle. Whether you’re looking to expand your living space or create a peaceful retreat, we deliver craftsmanship, comfort, and lasting value in every project.
Why Choose Royal Sunrooms?
Custom Design for Every Home
Every sunroom we build in St. Louis MO and Metro East Illinois is tailored to your space, architecture, and vision—no pre-fab, one-size-fits-all solutions.
Year-Round Comfort & Usability
Our sunrooms are designed for all seasons, providing insulation, ventilation, and natural light so you can enjoy your space every day of the year.
Premium Materials & Construction
We use high-quality framing, glass systems, and finishes built to withstand weather while maintaining beauty and performance.
Seamless Home Integration
Our builds are designed to match and enhance your existing home, creating a natural extension—not an add-on.
Experienced Design & Build Team
From concept to completion, our team ensures a smooth process with expert planning, precision installation, and attention to detail.
Our Sunroom & Outdoor Living Services in St Louis MO
Custom Sunroom Design & Build
We design and construct fully customized sunrooms for homeowners throughout St. Louis MO and Metro East Illinois. From layout to materials, every detail is tailored to create a bright, comfortable space that fits your home perfectly.
Four-Season Sunrooms
Enjoy your space year-round with fully insulated, climate-controlled sunrooms. Our four-season builds provide comfort in both hot summers and cold winters while maximizing natural light.
Three-Season Sunrooms
Looking for a more open-air feel? Our three-season sunrooms offer protection from weather and insects while maintaining airflow and a connection to the outdoors.
Screen Rooms & Enclosures
Turn your porch or patio into a bug-free, relaxing space. Our screen rooms allow you to enjoy fresh air without the hassle of pests or debris.
Patio Enclosures
We convert existing patios into enclosed living spaces that add function, comfort, and value to your home. Perfect for entertaining or relaxing in any season.
Glass Rooms & Solariums
Maximize natural light with full glass enclosures designed for modern, open aesthetics. These spaces create a bright, airy environment with unobstructed outdoor views.
Sunroom Additions
Need more space? We build full sunroom additions that expand your home’s footprint while increasing property value and usability.
Energy-Efficient Window & Door Systems
Our sunrooms feature high-performance windows and doors designed for insulation, durability, and energy savings—keeping your space comfortable year-round.
Repairs, Upgrades & Conversions
Already have a sunroom? We repair, upgrade, and convert existing structures to improve comfort, efficiency, and appearance.
Frequently AskedQuestions
What’s the difference between a three-season and four-season sunroom?
A three-season sunroom is typically used in mild weather, while a four-season sunroom is insulated and climate-controlled for year-round use.
Can you match my existing home’s design?
Yes. Every project is custom-built to blend seamlessly with your home’s architecture and style.
Do sunrooms add value to my home?
Absolutely. A professionally built sunroom increases usable space, curb appeal, and overall property value.
How long does a sunroom project take?
Timelines vary based on size and complexity, but most projects are completed within a few weeks.
Are your sunrooms energy efficient?
Yes. We use insulated materials and high-performance glass to maintain comfort and reduce energy costs.
Do you offer free estimates?
Yes. We provide detailed, no-obligation estimates for all projects.
Expand Your Home with Light, Comfort & Style
Contact Royal Sunrooms today for a free estimate on all your sunroom and outdoor living needs in St. Louis MO and the Metro East region of Illinois, and start creating a space you’ll love year-round ☀️🏡