Florissant’s Trusted Experts in Deck Design
Deck Builders of Florissant
Weather-Ready Decks for Florissant Homes
Built to Handle St. Louis County Conditions
From freezing winters to humid summers, Florissant decks face it all. We build with local code in mind and select materials designed to handle the Midwest’s extremes. Whether you’re replacing an old deck in Paddock Hills or adding a porch near Koch Park, we deliver quality and care.
How Can We Help?
Designed to Fit How You Live
Functional Outdoor Spaces for Every Florissant Home
We design decks that match your lifestyle. Hosting BBQs, relaxing with family, or watching sunsets—we create layouts that maximize comfort, traffic flow, and style. From material selection to the last fastener, every detail supports long-term performance and local compliance.
Free consultations in all Florissant neighborhoods
Elevated builds for sloped or wooded lots
Safe, code-compliant stairs and railings
Local Expertise That Makes a Difference
Deck Builders Who Know Florissant
We’ve built decks across Florissant, from historic areas to newer developments. Our team knows how to navigate St. Louis County permit rules, HOA restrictions, and tight lot lines. Whether you're in Florissant Valley or Duchesne, we make sure your deck fits the space and the code.
Solid Foundations, Lasting Support
Built for Strength, From the Ground Up
Every build starts with a secure frame. We use treated lumber or steel framing depending on the slope and soil. Footings are set deep to resist shifting, and every beam and joist is placed with drainage and durability in mind. Your deck won’t just look good—it’ll last.
Materials That Match Missouri Weather
Choose Composite or Natural Wood Decking
We work with high-performance materials from brands like Trex, TimberTech, and Fiberon—great for Florissant’s humidity and temperature swings. Prefer wood? We offer cedar and pressure-treated options, sealed for UV, rot, and mold resistance. We’ll help you decide what fits best.
Exploring Florissant Neighborhood Insights
Paddock Hills: Homes in Paddock Hills benefit from deep backyards and mature trees—perfect for composite decks with built-in seating or shaded pergola areas.
Duchesne: With many mid-century homes and tighter lots, Duchesne is ideal for custom-sized decks, covered patios, and stair upgrades to match older layouts.
Koch Park Area: Close to the park, many homes here use decks for grilling and outdoor entertaining. Elevated platforms with railing are popular on sloped lots.
Don't worry, we can help!
About Alliance Deck Builders of Florissant
We’ve been building in Florissant long enough to know the ins and outs of every neighborhood, slope, and soil type. Whether you need HOA approvals in Cross Keys or extra privacy near Koch Park, we’ve seen it all—and built it better. Every project starts with a clear quote, continues with skilled construction, and ends with your satisfaction. From materials to permitting, we manage the entire process so you don’t have to. Trust local experience, and get a deck built right.
Spaces That Fit How You Live
Every Deck Is Designed With Purpose
We plan your deck around real-life use—seating, flow, safety, and shade. Whether it’s a wraparound staircase or a tucked-away grilling nook, we match the build to your routines. You’ll get a finished space that blends with your home and supports your lifestyle.
Deck Questions We Hear Around Florissant
What Local Homeowners Want to Know
We help homeowners throughout Florissant—from Paddock Estates to the northern edges near Old Jamestown. Whether you’re new to building or replacing an old deck, these common questions will help you understand materials, timelines, and permitting requirements in this area.
Is a permit required for decks in Florissant?
Yes. St. Louis County requires permits for most new decks. We submit all drawings and handle the entire permitting process for you.
What’s the best deck material for humidity?
Composite decking from Trex or TimberTech resists mold and warping. Cedar also works well with proper sealing and maintenance.
Can you build on a sloped backyard in Florissant?
Yes. We specialize in elevated and multi-tiered decks with engineered footings, ideal for hills, drainage zones, and wooded areas.
Do you offer quotes for older homes with access issues?
Absolutely. We design for tight spaces, odd elevations, and limited access—all common in established Florissant neighborhoods.
We Install Composite Decks Across Missouri
Choose the city closest to you!
We have lot's to say
No blogs found
Decks, Railings, Porches & More
Outdoor Projects Built to Last in Florissant
Deck Design & Construction
We design and build custom decks tailored to your home, lifestyle, and outdoor space—built for comfort, code, and long-term value.
Composite Deck Installation
Durable, low-maintenance decking in brands like Trex and TimberTech. We install with expert framing and clean finishes.
Wood Deck Building
Traditional wood decks built from cedar or pressure-treated lumber, sealed for longevity and built with care.
Deck Repair & Structural Reinforcement
We replace rotted joists, tighten loose rails, and restore sagging stairs—bringing your deck back to safe, usable shape.
Deck Restoration & Refinishing
We clean, sand, and seal old decks to restore natural color and extend the life of your outdoor space.
Multi-Level Deck Construction
Tiered decks add dimension and function. We build secure, attractive multi-level systems with unified stairs and rails.
Deck Extensions & Re-Decking
We extend existing decks or replace worn boards with modern composite or sealed wood—saving the foundation when possible.
Covered Decks & Patio Roofs
From pergola-style shade to full patio roofs, we protect your deck space from rain, sun, and snow with stylish coverage.
Screened-In Porches & Sunrooms
Enjoy fresh air without the bugs. We build screened rooms and glass-walled sunrooms for relaxing in all weather.
Outdoor Kitchens & Grilling Stations
We build grilling areas, outdoor sinks, and kitchen setups into decks—complete with fire-safe materials and smart layout.
Pergolas, Gazebos & Arbors
Add architectural charm and functional shade with custom pergolas, gazebos, or arbors—built freestanding or integrated.
Pool Deck & Hot Tub Surrounds
Slip-resistant, water-safe decks designed to wrap hot tubs or pool edges with beauty and durability.
Detached Garages & Sheds
We construct code-compliant outbuildings including garages, workshops, and storage sheds with matching exterior finishes.
Custom Deck Railings & Stairs
We fabricate and install deck railings and stairs to match your design goals and meet local safety codes.
Commercial Deck Projects (Restaurants, Rooftops, etc.)
From rooftop lounges to restaurant patios, we build commercial-grade decks that handle heavy use and meet ADA compliance.
Innovation
Fresh, creative solutions.
Integrity
Honesty and transparency.
Excellence
Top-notch services.
Let’s Build Your Florissant Deck the Right Way
Alliance Deck Builders of Florissant delivers smart design, expert builds, and total project management—from first quote to final screw. We handle permits, materials, and layout with care and local knowledge. Ready to upgrade your outdoor space? Let’s talk and get your free quote started.
Copyright 2026. Florissant. All Rights Reserved.