Wisconsin’s Trusted Choice for Lasting Composite Decks

Composite Deck Installation in Wisconsin

Why Homeowners Across Wisconsin Prefer Composite Decking

Durable, Low-Maintenance Decks Built to Last

Composite decking is a smart investment for Wisconsin homeowners who want the beauty of wood without the upkeep. Made from a blend of recycled wood fibers and plastic, these boards resist rot, fading, splintering, and insect damage—perfect for the Midwest’s changing weather. At Alliance Deck Builders, we specialize in installing composite systems that offer lasting performance with realistic woodgrain textures, custom colors, and optional features like hidden fasteners and integrated lighting. Whether it’s a quiet backyard retreat or a large-scale entertaining area, we’ll bring your vision to life with craftsmanship that stands the test of time.

What Makes Our Composite Decks Different?

Precision Installation Backed by Expert Design

From consultation to completion, we focus on quality and detail. Our process begins with a custom design tailored to your layout, lifestyle, and budget. We guide you through material selections and finishes that match your home’s style. Then, our experienced crew ensures every board is properly supported, leveled, and secured for years of safe use. We follow all local building codes, offer manufacturer-backed materials, and stand behind our work with trusted warranties.

Fast-draining surfaces perfect for rain and snow

No sanding, staining, or sealing required

Hidden fasteners for a clean, modern finish

Composite deck with modern railing installed in Wisconsin backyard

Engineered to Perform in Every Season

Weather-Resistant Decking for Wisconsin Climates

Harsh winters. Wet springs. Hot, humid summers. Wisconsin decks take a beating year-round, and composite materials are built to endure it all. Our preferred brands—like Trex and TimberTech—feature moisture-resistant cores and protective caps that prevent warping, splitting, or fading even in extreme temperature shifts. These boards won’t crack under snow load, won’t absorb rain, and won’t splinter after years of UV exposure. Alliance Deck Builders ensures your outdoor space stays safe and strong in every season, from Racine rooftops to Eau Claire backyards.

Trex composite deck with built-in lighting and custom stairs in Madison

The Right Products, Installed the Right Way

Certified Installers of Industry-Leading Brands

We work with top composite decking systems that lead the industry in quality and appearance. As certified installers of brands like Trex, Deckorators, and TimberTech, our team receives factory training and follows strict installation specs to ensure every board performs as expected. From single-level backyard patios to multi-tiered rooftop decks, we customize each project with fascia trims, lighting kits, railing systems, and more. If you want an outdoor living space that’s as dependable as it is beautiful, trust the composite deck experts Wisconsin homeowners rely on.

More Than Just a Pretty Deck

Function Meets Design with Custom Features

Every project starts with your priorities—seating areas, cooking zones, sun exposure, privacy needs, or accessibility. Our designers incorporate those goals into plans that blend aesthetics with utility. Add-ons like built-in benches, planters, curved steps, or privacy walls help your composite deck serve daily life and special occasions alike. And because composite boards are available in a wide range of colors and textures, you can complement your home’s exterior while enjoying unmatched durability.

Composite deck with pergola and built-in seating installed in Waukesha

Why Choose Alliance Deck Builders?

Certified Composite Installers: Trained and trusted by leading brands like Trex and TimberTech.

Custom Design Planning: Each deck tailored to your layout, lifestyle, and budget.

Weather-Tested Results: Built to perform through Wisconsin's rain, snow, and heat.

Local Code Compliance: We handle permits and ensure every project meets safety standards.

Built-In Features: Add lights, benches, or railing systems that suit your outdoor life.

Don't worry, we can help!

What to Expect During Your Project

From first call to final board, we keep communication clear and timelines honest. Our team walks you through every step—starting with on-site measurements and design recommendations, followed by a detailed proposal and transparent schedule. Once the build begins, our crew keeps the site clean, respects your property, and stays focused on quality. Most composite deck installs are completed in under a week, weather permitting.

Free design consultations across Wisconsin

Fast, professional builds with no subcontractors

Project timelines you can count on

From Small Patios to Large Entertainment Decks

Composite Deck Solutions for Every Property Type

We build for homeowners and businesses alike—installing composite decks for single-family homes, townhouses, apartment complexes, restaurants, rooftop lounges, and more. Whether you're replacing a splintered wood deck or adding a brand-new composite space, we scale to fit the needs of your property. Our knowledge of Wisconsin zoning and HOA rules ensures smooth approvals and long-lasting satisfaction.