Durable, Low-Maintenance, and Built for Colorado

Composite Deck Installation in Colorado

Composite Decks That Combine Beauty and Performance

Modern Materials for Modern Living

Today’s composite materials offer realistic wood-grain textures, deep color options, and performance features that make them a smart investment. These boards won’t splinter, warp, or rot—and they resist fading, mold, and stains. Our team helps you select the best brand and style based on your budget, desired maintenance level, and color preferences. We also ensure your new deck is installed with hidden fasteners and proper ventilation to prevent heat buildup and water retention.

Less Maintenance. More Longevity.

Why Choose Composite Over Wood?

Colorado’s sun, snow, and elevation are tough on traditional lumber. Composite decking eliminates the need for annual staining or sealing while still providing a beautiful finish. It’s perfect for homeowners who want a long-lasting outdoor space without the time or cost of regular upkeep.

No sanding, staining, or sealing required

Won’t crack, warp, or splinter over time

Available in dozens of fade-resistant color styles

Close-up of composite deck boards installed in a Colorado backyard

Trex, TimberTech, DuraLife & More

Materials from Trusted Composite Deck Brands

We install only proven composite products from leading manufacturers known for quality and performance. Trex offers eco-friendly boards made from 95% recycled materials. TimberTech gives you rich color and texture variety with capped polymer durability. DuraLife stands out for its heat resistance—perfect for sun-exposed decks. During your consultation, we’ll compare features, warranty terms, and finish options so you can make the right call. Every board we install is backed by strong manufacturer warranties and professional craftsmanship

Composite deck being installed over pressure-treated frame in Colorado

Code-Compliant Framing and Support

Built Right from the Ground Up

Composite boards are only part of the system. Our crews build strong, code-compliant frames that support composite decking properly—ensuring no sagging or warping over time. We use pressure-treated joists, high-grade hardware, and precisely measured footings for maximum strength. We also account for ventilation and water flow beneath the surface to extend the life of both the deck and substructure. Your finished project will feel solid underfoot and meet all local building regulations.

Decking That Reflects Your Personal Taste

Color, Texture, and Style Customization

Composite doesn’t mean boring. You can choose from dozens of hues, textures, and grain patterns to match your home’s style—from rich browns and rustic reds to sleek grays and modern charcoals. We also install custom borders, picture-frame edges, inlays, and integrated lighting for that high-end finish. Need help visualizing it? Our design team can mock up a rendering so you see your new deck before we build it.

Modern composite deck with picture-frame border and LED lighting

Why Choose Alliance for Composite Decking?

Brand Partnerships: We work directly with Trex, TimberTech, and DuraLife.

Climate-Specific Installs: Decks engineered to handle Colorado sun, snow, and wind.

Design Support: We help you choose the right textures, colors, and layouts.

Flawless Finishes: Hidden fasteners and clean edges on every build.

Licensed & Insured: We follow all state codes and carry full liability coverage.

Don't worry, we can help!

Invest in a Deck That Lasts

Composite decking costs more up front than wood—but it pays for itself in durability, resale value, and minimal maintenance. You’ll save years of staining, sanding, and sealing. Plus, buyers love seeing a long-lasting deck when it’s time to sell. Our team can help you calculate return-on-investment over time, so you can make the smart choice for your property.

25–50 year manufacturer warranties

Boosts curb appeal and resale value

Less lifetime maintenance cost vs. wood

Upgrade Your Old Deck to Composite

Perfect for New Builds or Replacements

If your current deck is aging, splitting, or becoming a safety hazard, a composite upgrade could be the answer. We’ll inspect the existing frame and determine if it can be reinforced or reused. Then we remove old boards, install modern composite decking, and add new railings, stairs, and trim. It’s a fast way to revitalize your outdoor space—without starting from scratch