Custom Outdoor Living Starts Here

Deck Builders of Colorado

Alliance Deck Builders of Colorado delivers beautifully crafted outdoor spaces tailored to how you live. From composite decks to multi-level custom builds, we work across every major city in Colorado to create functional, long-lasting environments for your home or business. Whether you're expanding your entertainment space or adding value to your property, our team brings decades of hands-on experience, expert craftsmanship, and code-compliant construction to every project.

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Closest City*

Colorado’s Local Experts in Deck Construction

Why Homeowners Trust Our Deck Contractors

With Colorado's unique climate and elevation changes, deck building isn’t one-size-fits-all. That’s why we use materials designed for durability—like pressure-treated wood, cedar, and weather-resistant composite decking from brands like Trex and TimberTech. Our seasoned team understands snow load requirements, wind exposure, and HOA standards across cities like Denver, Fort Collins, and Colorado Springs. From design to final inspection, we handle every detail with precision and transparency. Whether it's a backyard refresh or a full commercial deck build, we make outdoor living exceptional.

ImAlliance Deck Builders of Colorado logoage

Engineered for Colorado Weather

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Custom Designs That Fit Your Style

Alliance Deck Builders of Colorado logo

Top-Grade Composite & Cedar Options

Alliance Deck Builders of Colorado logo

Permits, Codes & HOAs Handled

Deck Projects Across Colorado

See What We’ve Built

From urban rooftops in Denver to sprawling backyards in Fort Collins, our work spans a variety of deck styles and settings. We build for the view, the function, and the long haul—using materials that last and craftsmanship that speaks for itself. Below are just a few recent projects showcasing what we do best.

What Sets Our Team Apart

Built for Longevity, Backed by Experience

Every deck we build is engineered with long-term performance in mind. Colorado’s freeze-thaw cycles, dry air, and elevation shifts demand specific construction techniques—and we know what holds up. Our builders use reinforced framing, correct fasteners for each material, and handle drainage and ventilation properly. We’ve spent years building a reputation city by city, and we stand behind everything we build with warranties and real customer support.

  • All Work Permitted & Inspected

  • Backed by Workmanship Warranty

  • Certified Installers of Trex & TimberTech

Colorado deck contractors discussing design plans

What We Build

Our Deck & Outdoor Living Services

Custom deck under construction in Colorado

Custom Deck Design & Construction

Tailored deck layouts built to match your space, lifestyle, and city code. Full-service from permits to completion.

Trex composite decking installed on Colorado home

Composite Deck Installation

Long-lasting composite decks using Trex, TimberTech & more. Fade, rot, and splinter resistant.

Cedar wood deck overlooking Colorado yard

Wood Deck Building (Cedar & Pressure-Treated)

Traditional wood decks built with cedar or pressure-treated lumber—cost-effective and customizable.

Contractor reinforcing deck beams in Colorado

Deck Repair & Structural Reinforcement

We fix damaged boards, railings, and joists, reinforcing your structure for safety and longevity.

Deck restoration project with sanding tools

Deck Restoration & Refinishing

Strip, sand, and refinish aging decks to bring back beauty and extend life.

Multi-level backyard deck in Colorado Springs

Multi-Level Deck Construction

Split-level decks perfect for sloped yards or adding multiple zones for seating, dining, or views.

Workers extending an existing deck frame

Deck Extensions & Re-Decking

Expand your existing space or replace worn surfaces with new boards and improved framing.

Covered deck with wood ceiling in Colorado

Covered Decks & Patio Roofs

Stay dry and shaded with custom patio roofs and gable covers designed for year-round use.

Screened-in porch with furniture in Fort Collins

Screened-In Porches & Sunrooms

Create insect-free, year-round outdoor rooms with full screens or enclosed sunroom options.

Outdoor grill station on composite deck

Outdoor Kitchens & Grilling Stations

Full outdoor kitchen builds including gas hookups, counters, storage, and more.

Cedar pergola over backyard patio

Pergolas, Gazebos & Arbors

Freestanding or deck-mounted structures for shade, beauty, and vertical garden options.

Pool deck with built-in spa in Colorado

Pool Deck & Hot Tub Surrounds

Safe, slip-resistant decking solutions that stand up to water and chemicals.

Framing a detached garage in Greeley

Detached Garages & Sheds

Add functional space with custom detached storage sheds or full garages.

Horizontal cable deck railing installed in Pueblo

Custom Deck Railings & Stairs

Choose wood, metal, or cable railings with sturdy custom stairs built to match your layout.

Rooftop deck seating area at Colorado business

Commercial Deck Projects (Restaurants, Rooftops, etc.)

Rooftop, restaurant, and hospitality decks built to meet commercial specs and high traffic demands.

Colorado deck contractor reviewing building code checklist

We Know Colorado Deck Codes

Built Right the First Time

We’re not just deck builders—we’re your permitting partner. Our team handles code compliance, HOA approvals, and city inspections across Colorado, so your deck is legal, safe, and long-lasting. We regularly work with regional building departments in Denver, Pueblo, and Colorado Springs to make sure your project passes the first time. No surprises, no delays—just the right build done right.

From Design to Final Inspection

One Team for Start-to-Finish Builds

Our process starts with a free design consultation, where we take measurements, listen to your ideas, and walk your property to understand the layout and sun angles. Once your plan is approved, we manage the full build—from demolition and framing to trim work and final inspection. Whether it’s a rooftop restaurant deck or a backyard multi-tier cedar build, your dedicated crew handles everything. We never subcontract key structural work.

Deck builder measuring layout on Colorado property

High Standards. Clear Pricing.

No Surprises—Just Solid Work

At Alliance Deck Builders of Colorado, we provide detailed estimates upfront. You’ll see line-item costs for labor, materials, demolition, and finishing touches—so you’re never guessing what you’re paying for. Our team builds to exact spec, and we warranty both workmanship and materials. We stand by our work and make sure you’re satisfied before we leave the jobsite. This is custom building done with clarity and care

How We Build Your Outdoor Space

Contractor sketching custom deck design during site visit

Site Visit & Design Plan

We walk the property, capture measurements, and create a custom deck design tailored to your space and style.

Deck permits and TimberTech samples laid out on table

Permits & Material Orders

We submit required applications, handle HOA approvals, and order brand-name materials built to withstand Colorado’s climate.

Crew finishing deck railing before final walkthrough

Build, Finish & Inspect

Our in-house team builds to code, cleans the site, and walks through every finished detail before final inspection.

Ready to get started?

Why Choose Alliance Deck Builders?

  • Local Building Code Expertise

    We work directly with cities and counties across Colorado to meet all deck construction requirements and avoid rework.

  • Materials That Last

    We source top-performing products like Trex, TimberTech, and DuraLife—engineered for high altitudes and dry climates.

  • Custom Designs That Fit

    Our decks are built around how you use your space—grills, hot tubs, sun exposure, yard slope, and all.

  • Clear Pricing, No Guesswork

    Upfront proposals, no vague allowances. You’ll always know what’s included and what your final bill will be.

  • Warrantied Workmanship

    We back our construction with labor warranties and honor all manufacturer guarantees for decking and fasteners.

Don't worry, we can help!

We Work with these Brands of Materials

Fiberon composite decking logo
TimberTech decking products logo
DuraLife decking materials logo
Trex composite decking logo
Deckorators railing and decking logo

Common Questions from Colorado Homeowners

Deck Construction FAQs

If you're planning a new deck or upgrading an existing one, you probably have questions. Here are answers to some of the most common things Colorado homeowners ask.

Do I need a permit to build a deck in Colorado?

Yes. Most cities and counties in Colorado require permits for new decks or major repairs. We handle all submissions and inspections for you.

What’s the difference between composite and wood decking?

Composite decking like Trex or TimberTech resists moisture and fading, while wood options like cedar are natural and often more affordable upfront.

How long does a custom deck project take?

Most projects take 2–4 weeks from the start of construction, depending on size, complexity, and permitting timelines.

Do you offer financing options for decks?

Yes, we partner with local lenders to offer financing options for qualified customers. Ask about low-interest monthly payment plans.

Every Deck We Build Adds Lasting Value

Outdoor living in Colorado is more than a seasonal trend—it’s part of the lifestyle. Whether you're in Fort Collins or Pueblo, a well-built deck enhances how you enjoy your home and boosts long-term property value. Our team builds decks that are both beautiful and engineered to last through the state’s harsh winters and intense sun. And with our experience across cities and counties, we’re equipped to build smarter, faster, and to local code.

  • Designed for Colorado’s Elevation and Climate

  • Experienced With HOA Requirements Across the State

  • Built With Permitted Plans and Structural Integrity

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Innovation

Fresh, creative solutions.

Icon of pressure-treated lumber stack for durability

Integrity

Honesty and transparency.

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Excellence

Top-notch services.

Ready to Build Your Dream Deck?

Alliance Deck Builders of Colorado is here to bring your vision to life—on time, on budget, and built to last. Whether you're ready for a design consultation or just exploring options, we’re happy to answer your questions. Call now or request a free estimate to get started.

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