St. Louis Deck Builders Custom Composite Decks Built for St. Louis Homes
Low-maintenance composite decking designed for entertaining, durability, and year-round outdoor living.
Decks are just one part of what we do, so browse all exterior services we offer to see the full range of upgrades we bring to St. Louis homes. If your project includes updating your home's exterior beyond the deck, you can also request a siding replacement estimate to protect and refresh your home's look. And once your new deck is built, don't forget the finishing touch: explore our deck railing installation services to keep your outdoor space both safe and stylish.
10+
Years in
Business
Financing
Available
350+
Deck Projects completed around St. Louis
Deck Designs for Every Backyard
Custom deck designs built for the way you live.
Perfect for hosting, relaxing, and making memories.
Create a space that’s built for BBQs, game nights, and unforgettable get-togethers.
- Spacious layouts for seating & dining
- Built-in lighting & ambiance
- Durable, low-maintenance materials
- Add covers, screens, and more
Kitchen pass through window or patio door
Choose a Decking Style for Your Home
We install industry-leading composite decking brands for beauty, performance, and peace of mind.
Find the Right Deck for Your Home
We'll help you compare materials and design the perfect deck for your lifestyle and budget.
Deck Builders Trusted by St Louis Homeowners
A Deck Company That Builds it Right the First Time
No quick fixes, no cutting corners. We build solid, custom decks meant to last. When we do a job, we build it safely and correctly the first time, so you can enjoy it for years.
Why St Louis Homeowners Choose a New Deck
Built to Current Codes
Designed and built to meet or exceed today's building codes and safety standards.
Brand New Structural Framing
Every deck starts with new, properly rated framing for maximum strength and reliability.
Fully Customized Layout & Features
Tailored to your space, lifestyle, and budget with unlimited design possibilities.
Premium Composite Materials
We use industry-leading materials from Armadillo and Dekorators for lasting beauty and performance.
Long-Term Value & Peace of Mind
A complete new deck is a smart investment that adds value and years of worry-free enjoyment.
Ready to Replace Your Aging Deck?
Let's build something amazing. Built right, the first time.
Why We Don't Offer Re-Decking
Replacing deck boards alone can leave aging framing, hidden damage, and outdated construction standards in place.
To ensure safety, durability, and long-term performance, we only build complete new deck systems.
Safety. Integrity. Built to last.
Our Deck Building Process
Consultation
We learn about your vision, needs, lifestyle, and budget.
Design & Material Selection
We create a custom deck design and help you choose the ideal composite decking, railing, lighting, and features for your home.
Build & Installation
Our experienced team handles construction with precision, quality craftsmanship, and attention to every detail.
Final Walkthrough
We review the completed project with you to ensure everything meets expectations before we consider the job complete.
Flexible Financing Available
Upgrade your outdoor living space today with easy monthly payment options.
Fast & Easy Approvals
Low Monthly Payments
Special Financing Options Available
Ready to Build Your Backyard Retreat?
Get a free, no-obligation estimate and let's
bring your dream deck to life.
Composite Deck Builders in St. Louis
We design and build custom composite decks for homeowners throughout the St. Louis area. Our decks are built to withstand Missouri's harsh weather while delivering beautiful, low-maintenance outdoor living spaces.
We work with top brands like Armadillo® and Deckorators® to provide the perfect balance of durabity, style, and value. From simple backyard decks to multi-level entertaining spaces, we build it right the first time.
Proudly Serving:
Frequently Asked Questions
How much does a composite deck cost in St. Louis?
The cost of a composite deck depends on the size, layout, materials, railing, stairs, lighting, and any custom features. STL Design & Build provides free estimates so you can understand your options before starting your project.
How long does it take to build a new deck?
Most deck projects vary based on design complexity, permitting, material availability, and weather. During your consultation, our team will review your project and provide a realistic timeline.
Do you build composite decks?
Yes. We design and build custom composite decks using low-maintenance materials built for durability, outdoor living, and Missouri weather conditions.
Do you offer deck financing?
Yes. Financing options are available for qualified homeowners, making it easier to start your deck project with manageable payment options.
Do you replace old wood decks?
Yes. We can remove an existing deck and build a new custom deck designed for safety, long-term performance, and modern outdoor living.
What areas do you serve?
STL Design & Build serves homeowners throughout the St. Louis area and surrounding communities, including St. Charles, Chesterfield, O'Fallon, Wildwood, Ballwin, and nearby areas.
Do you do re-decking or just deck replacements?
We focus on full deck replacements rather than re-decking. When we assess a deck, we evaluate the entire structure—including the foundation, framing, and substructure. Hidden damage or structural issues are common with older decks, and patching the surface doesn't address safety or longevity concerns. A complete replacement ensures your new deck meets current building codes, performs safely for years, and comes with our warranty. This approach protects your family and provides better long-term value.