Low Maintenance. High Performance. Built to Last.

Composite Deck Installation in Washington

The Smart Choice for Washington Homeowners

Composite Decks That Withstand Rain, Sun, and Time

Washington’s weather demands more than wood. Composite decking offers lasting beauty without splinters, rot, or annual staining. We install premium brands like Trex, TimberTech, and DuraLife — all backed by manufacturer warranties and built over strong, weather-ready framing. Whether you’re building new or replacing an old deck, composite delivers the performance Washington homeowners count on.

Why Choose Composite Decking?

Durable, Beautiful, and Nearly Maintenance-Free

Unlike traditional wood, composite boards are made to resist moisture, fading, mold, and warping. No sanding. No sealing. Just a quick rinse now and then. Our crews are trained to cut, fasten, and finish composite materials the right way, ensuring the boards stay secure and the surfaces stay sharp.

  • Fade-resistant colors that stay vibrant for decades

  • Hidden fasteners for a smooth, screw-free look

  • Matching stairs, railings, and fascia available

Close-up of gray composite decking boards with hidden fasteners

New Build or Re-Deck? We Do Both.

Composite Deck Installation That Fits Your Home

Whether you’re replacing a weathered wood deck or starting from scratch, we handle everything. For re-decks, we inspect and reinforce the existing frame before laying new boards. For full builds, we dig new footings, frame with pressure-treated lumber, and install your choice of composite boards with precision.

Sample boards from Trex, TimberTech, and DuraLife displayed on a jobsite

Top Composite Decking Brands We Trust

We Install Trex, TimberTech, and DuraLife

We help you choose the right composite brand for your style and budget. Trex offers a broad color range and eco-friendly boards. TimberTech delivers premium finishes and PVC core options. DuraLife features high-slip resistance and fast lead times. We’ll walk you through samples and ensure your choice looks great — and performs for decades.

Built for Washington Homes and Weather

Framing, Drainage, and Finish Matter

A composite deck is only as strong as the structure beneath it. That’s why we frame with pressure-treated lumber and use galvanized hardware rated for wet climates. We account for runoff, slope, and board expansion in every layout. Whether it’s a rooftop deck in Seattle or a backyard build in Yakima, your composite surface stays level and solid for years.

Composite deck framing with pressure-treated lumber and metal brackets

Why Homeowners Trust Our Composite Installs

  • Certified Installers: Our teams are trained in composite fastening, spacing, and board orientation.

  • Weather-Ready Framing: We frame every deck to withstand moisture, movement, and Washington’s climate.

  • Fast, Clean Installs: Most decks are built in 1–2 weeks with tidy job sites and respectful crews.

  • Long-Term Warranties: Get up to 50-year manufacturer warranties plus our own labor guarantee.

  • Style Guidance Included: We help you choose colors, grains, borders, and railings that match your home.

Don't worry, we can help!

Composite Installation That’s Done Right the First Time

Composite boards need air gaps, aligned patterns, and hidden fasteners to look and perform correctly. Our crews understand the technical specs and don’t skip steps. We also take care of permits, HOA submissions, and final inspections. You don’t need to worry — just get ready to enjoy your new deck.

  • Manufacturer-approved install methods

  • On-time completion and no surprise costs

  • Final walk-through with care guide included

Re-Decking with Composite? We Make It Easy.

Keep the Frame, Upgrade the Surface

If your deck’s structure is solid but the surface is failing, we can re-deck with composite. Our team removes the old boards, inspects the frame, and reinforces any weak areas. Then we install your choice of composite, giving your outdoor space a brand-new life — without the cost of a full rebuild.

Common Questions About Composite Decks

What Washington Homeowners Want to Know

Considering composite? Here are some honest answers to the most common questions we hear during consultations and installs.

Question 1: How long does composite decking last?

Most brands last 25–50 years with little maintenance. Trex and TimberTech offer long-term warranties for fade, stain, and structural performance.

Question 2: Can I install composite over my old deck?

Only if the frame is solid. We inspect it thoroughly and recommend reinforcement or replacement if needed.

Question 3: What’s the maintenance like?

Just rinse occasionally with water. No sanding, staining, or sealing needed.

Question 4: Is composite slippery when wet?

Most premium brands offer slip-resistant finishes designed for pool areas and rainy climates.

Service Areas Across Washington

Choose the city closest to you!

Deck restoration services in Bellevue WA
Backyard deck builder in Everett WA
Elevated and hot tub decks in Kent WA
Elevated and hot tub decks in Olympia WA
Pergolas and deck repairs in Renton WA
Custom deck construction in Seattle WA
Multi-level deck builder in Spokane WA
Multi-level deck builder in Spokane Valley WA
Cedar and composite decks in Tacoma WA
Outdoor kitchens and decks in Vancouver WA

Explore More Deck Services

From Design to Rebuilds, We Do It All

Custom deck design and build in Washington

Deck Design & Construction

Built around your space, lifestyle, and goals using detailed 3D plans.

Composite deck installation with Trex boards

Composite Deck Installation

Durable, low-maintenance decks using Trex, TimberTech, and more.

Cedar wood deck installation in WA backyard

Wood Deck Building

Classic wood options built to match natural settings and last for years.

Deck repairs and framing reinforcement in Washington

Deck Repair & Structural Reinforcement

Fix framing, replace rot, and restore deck safety and stability.

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Deck refinishing project in Washington home

Deck Restoration & Refinishing

Bring weathered decks back to life with sanding, staining, and sealing.

Multi-level deck with stairs and planters

Multi-Level Deck Construction

Tiered designs to match sloped yards and create layered living zones.

Re-decking and deck expansion with new railing

Deck Extensions & Re-Decking

Upgrade or expand an existing deck with modern framing and surfaces.

Covered deck with roof extension in WA

Covered Decks & Patio Roofs

Stay protected from sun and rain with full roof structures or pergolas.

Screened porch and sunroom addition in Washington

Screened-In Porches & Sunrooms

Enjoy the outdoors without pests. Custom built enclosures for year-round use.

Outdoor grilling station with stone base on deck

Outdoor Kitchens & Grilling Stations

Full-featured cooking spaces built into your outdoor deck design.

Cedar pergola with seating area in backyard

Pergolas, Gazebos & Arbors

Architectural accents that add shade, style, and structure to any yard.

Hot tub deck with privacy screen in Washington

Pool Deck & Hot Tub Surrounds

Safe, slip-resistant decks built for wet zones and elevated support.

Detached cedar shed with matching deck trim

Detached Garages & Sheds

Custom outbuildings with deck-style finishes and aesthetic match.

Custom deck railing and stairway in Washington

Custom Deck Railings & Stairs

Modern, traditional, or code-compliant railing systems built to last.

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Commercial restaurant rooftop deck in WA

Commercial Deck Projects (Restaurants, Rooftops, etc.)

Built for business — large-scale, code-compliant, and built to withstand wear.

Composite deck install crew using hidden fasteners

Innovation

Fresh, creative solutions.

Trex deck with matching rail and stairs in Washington

Integrity

Honesty and transparency.

Side view of composite boards showing capped edges

Excellence

Top-notch services.

Let’s Build Your New Favorite Place to Relax

Whether you’re planning a quiet backyard retreat or a bold rooftop gathering space, Alliance Deck Builders of Washington brings your vision to life. Let’s talk about your project, your style, and your budget — and create a deck that delivers long after the last board is laid.

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