Colorado’s Choice for Outdoor Living Spaces

Custom Deck Design & Construction in Colorado

Design-Forward Decks Built for Colorado Homes

Tailored Deck Designs That Balance Beauty and Strength

Every home has a different story—and your deck should reflect it. Our design team collaborates with homeowners to craft decks that complement the home’s style, enhance outdoor living, and perform in Colorado’s variable climate. Whether you prefer warm cedar tones or low-maintenance composites, each structure is engineered for both aesthetics and durability. We consider everything: how you’ll use the space, the views you want to highlight, and the value a deck should add. You’ll get a deck that’s more than just an add-on—it’s a natural extension of your home.

What Sets Our Deck Construction Apart

Precision Building Backed by Experience

With over a decade of experience in custom deck construction, we’ve developed a seamless design-build process that prioritizes quality and communication. Our team uses top-tier materials, proven techniques, and jobsite discipline to ensure your deck is built to last. We also pull permits, follow local codes, and provide clear timelines from the outset—so there are no surprises.

Built to handle Colorado’s freeze-thaw cycles

Fully licensed, insured & code-compliant

Clear timelines & project updates throughout

Custom wood deck with built-in seating in Colorado backyard

Materials That Match Your Vision—and Budget

From Premium Composites to Natural Cedar Options

We work with a wide range of materials to suit your aesthetic preferences and performance needs. Want the low-maintenance appeal of composite decking? We source from industry leaders like TimberTech and Trex. Prefer the natural charm of real wood? We offer kiln-dried cedar and pressure-treated lumber built to resist Colorado’s altitude and moisture fluctuations. Our team will walk you through all material pros and cons—based on your budget, design goals, and site conditions—so you can make an informed choice that fits long-term.

Snow-covered custom deck with mountain views in Colorado

Engineered for Colorado’s Demanding Climate

Structural Integrity That Endures Season After Season

Every deck we build is reinforced to withstand the unique stresses of Colorado’s environment. We account for snow loads, wind uplift, and shifting soils by using properly rated footings, high-strength fasteners, and moisture-resistant framing techniques. For sloped yards or multi-level configurations, we engineer every beam and post for safety, longevity, and comfort. We don’t just build to pass inspection—we build to outperform expectations.

From Site Planning to Final Walkthrough

Full-Service Project Management

From the moment you call us to the day we pack up our tools, Alliance Deck Builders of Colorado handles everything in-house. We take care of HOA approvals, building permits, material sourcing, and timeline coordination. You’ll have one point of contact, a transparent schedule, and a crew that shows up on time, every time. Before we finish, we walk you through every detail of your new deck to ensure it meets our standards—and yours.

Deck construction crew installing railing on a custom project

Things about Deck Building

Design Expertise: Every deck begins with a custom design plan built around your home and vision.

Permit Handling: We manage all permits and inspections so you don’t have to lift a finger.

Colorado-Ready BuildsK: Engineered to perform in snow, sun, and everything in between.

Full-Service Team: One team handles everything—design, materials, and construction.

Warranty Included: All new decks come with a written structural warranty for peace of mind.

Don't worry, we can help!

Upfront Pricing. No Surprises.

When you build with Alliance Deck Builders, you get a clear scope of work and fixed pricing. Our proposals are detailed, line-itemed, and easy to understand. We never tack on hidden fees or change orders unless you request changes mid-project—and we’ll always quote them first. That’s how we build trust before we build your deck.

Transparent, detailed quotes

No hidden fees or upcharges

Optional upgrades priced before work begins

Custom Configurations to Fit Any Property

Multi-Level Decks, Extensions & More

Whether you want a single-level deck or a complex tiered structure, we tailor the design to your landscape and home layout. Have an existing deck that’s too small or outdated? We can extend, re-frame, or completely rebuild it into something new. From walkouts to wraparounds, covered spaces to open-air entertaining zones—we bring creativity and craftsmanship to every design.