Beautiful Custom Decks Designed for the Way You Live
Deck Builders of Washington
Alliance Deck Builders of Washington specializes in building custom outdoor spaces tailored to your lifestyle. From cedar decks in Seattle to multi-level rooftop lounges in Spokane, we bring experience, craftsmanship, and purpose to every project. Whether you're dreaming of a peaceful backyard retreat or a full-featured outdoor kitchen, our team delivers decks that last
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Washington’s Most Trusted Outdoor Living Experts
Craftsmanship That Elevates Every Backyard
When you choose Alliance Deck Builders, you're not just hiring a contractor — you're partnering with a local team that understands Washington’s diverse terrain, weather patterns, and building codes. Our decks are built to stand the test of time, rain or shine, and we use only premium materials like TimberTech, Trex, cedar, and pressure-treated lumber. Every project is managed by skilled carpenters with decades of experience and a commitment to quality that’s second to none.
Custom Decks That Fit Your Life
Built for Washington Weather
Honest Quotes. No Surprises.
Fully Licensed & Insured Pros
See What We’ve Built Across Washington
Our Recent Custom Deck Projects
From serene backyard escapes to bold rooftop decks, we’ve helped homeowners across Washington turn outdoor dreams into durable realities. Each photo below represents the craftsmanship, materials, and attention to detail we bring to every job — no matter the size or scope.
Why Homeowners Across Washington Choose Us
A Deck Building Experience You Can Count On
At Alliance Deck Builders of Washington, our process is clear, timely, and tailored. We start by listening. Every deck we design is based on your needs — not a prefab template. Our project managers ensure every phase runs smoothly, and our build crews respect your space as if it were their own. We’re not the cheapest. We’re the most dependable.
Local code compliance from design to finish
All crews are licensed and background-checked
Lifetime workmanship warranty on new builds
Our Custom Deck Services Across Washington
From Backyard Decks to Rooftop Retreats
Deck Design & Construction
Built around your space, lifestyle, and goals using detailed 3D plans.
Composite Deck Installation
Durable, low-maintenance decks using Trex, TimberTech, and more.
Wood Deck Building
Classic wood options built to match natural settings and last for years.
Deck Repair & Structural Reinforcement
Fix framing, replace rot, and restore deck safety and stability.
Deck Restoration & Refinishing
Bring weathered decks back to life with sanding, staining, and sealing.
Multi-Level Deck Construction
Tiered designs to match sloped yards and create layered living zones.
Deck Extensions & Re-Decking
Upgrade or expand an existing deck with modern framing and surfaces.
Covered Decks & Patio Roofs
Stay protected from sun and rain with full roof structures or pergolas.
Screened-In Porches & Sunrooms
Enjoy the outdoors without pests. Custom built enclosures for year-round use.
Outdoor Kitchens & Grilling Stations
Full-featured cooking spaces built into your outdoor deck design.
Pergolas, Gazebos & Arbors
Architectural accents that add shade, style, and structure to any yard.
Pool Deck & Hot Tub Surrounds
Safe, slip-resistant decks built for wet zones and elevated support.
Detached Garages & Sheds
Custom outbuildings with deck-style finishes and aesthetic match.
Custom Deck Railings & Stairs
Modern, traditional, or code-compliant railing systems built to last.
Commercial Deck Projects (Restaurants, Rooftops, etc.)
Built for business — large-scale, code-compliant, and built to withstand wear.
Our Decks Handle Every Inch of Washington
Built for Rain, Wind, and Heavy Use
Washington weather is no joke — that’s why we use top-tier materials and proven building techniques designed to resist moisture, movement, and decay. From galvanized framing brackets to hidden fasteners and capped composite boards, every deck is engineered for performance. Our structures meet or exceed local code, and every build includes a final walk-through and inspection checklist.
What to Expect When You Work With Us
A Clear Process from Design to Completion
We keep you informed at every step. From our first on-site consultation to final inspection, you’ll always know what’s next. Designs are reviewed with 3D renderings before we break ground. Our teams show up on time, clean up daily, and follow detailed project schedules. You’ll also receive a complete binder with product info, care tips, and warranty documentation.
Materials Matter — And So Does Your Budget
Decking Options That Balance Cost and Longevity
Whether you prefer the rich texture of cedar or the ease of composite, we help you choose the right materials for your climate, maintenance preferences, and budget. We'll walk you through pros, cons, and lifespan differences so you feel confident. All major brands available, including TimberTech, Trex, and DuraLife
How We Build Every Deck — The Right Way
On-Site Design Consultation
We meet at your property to discuss layout, materials, and lifestyle needs. You’ll receive a detailed proposal with design mockups and transparent pricing.
Skilled, Safe, & Clean Construction
Licensed crews follow engineered plans, meet building codes, and clean up daily. Safety for your family and our team is our top priority from start to finish.
Final Walkthrough & Warranty Binder
We complete a full inspection with you on-site. You get a project binder with warranty info, product specs, and tips to keep your deck looking great.
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What Sets Alliance Deck Builders Apart
Fully Licensed & Insured**: Every crew member and subcontractor is properly licensed in WA and covered with full liability and workers’ comp insurance.
Lifetime Workmanship Guarantee**: We stand behind every screw, board, and beam. Our labor warranty protects your investment — no fine print.
Washington-Focused Expertise**: We understand local slope issues, drainage, and materials that perform well in Washington’s climate.
High-Performance Materials**: We build with the best: TimberTech, Trex, DuraLife, and premium cedar. No off-brand, budget materials ever.
Transparent Communication**: No ghosting. No surprise charges. Just updates, honest answers, and a clean build from start to finish.
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Top Brands We Trust and Build With
Frequently Asked Questions
Answers to Common Deck Building Questions
We believe in clarity before construction. Here are some of the top questions we get from Washington homeowners before building a custom deck.
Question 1: How long does it take to build a custom deck?
Most standard decks take 2–3 weeks from ground break to final walk-through, depending on size, materials, and weather.
Question 2: Do I need a permit for my new deck in Washington?
Yes, most new decks require a permit. We handle the entire permitting process and ensure everything complies with local codes.
Question 3: What's the difference between composite and wood decks?
Wood is natural and more budget-friendly upfront. Composite lasts longer, requires less upkeep, and resists moisture and insects better.
Question 4: Can you match the style of my home?
Absolutely. From railing choices to trim details, we design every deck to harmonize with your home’s architecture.
What You Get When You Choose Alliance Deck Builders
Your deck isn’t just lumber and screws — it’s a long-term extension of your home and lifestyle. That’s why we take extra care with every detail, from structural integrity to surface finish. We don’t cut corners, skip steps, or vanish when the job’s done. We’re proud to be the deck company Washington homeowners call again and again.
Clear communication from first call to final walkthrough
Premium materials with verified product warranties
Trusted by hundreds of Washington homeowners
Innovation
Fresh, creative solutions.
Integrity
Honesty and transparency.
Excellence
Top-notch services.
Service Areas Across Washington
Choose the city closest to you!
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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