

Adding onto an existing deck is a cost-effective way to gain more outdoor living space without starting from scratch. We design and build extensions that match your home’s architecture and seamlessly connect to your current deck. Whether you need a larger dining area, extra seating space, or a full wraparound addition, our extensions are engineered for safety, durability, and visual harmony.
If your deck’s structure is sound but the surface is worn, re-decking is the smart solution. We remove old boards and install new cedar, pressure-treated lumber, or premium composite materials. This process gives your deck a brand-new look and feel—without the cost of tearing down the frame. Many Colorado homeowners choose composite re-decking for its durability and low maintenance.
Replace worn or splintered boards
Upgrade to low-maintenance composite decking
Extend deck life without full replacement

Re-decking and extensions are the perfect time to update more than just the surface. We can replace outdated railings with modern wood, composite, or metal systems, rebuild stairs for safer access, and add trim details for a finished look. Whether you want a fresh aesthetic or improved safety, these upgrades transform your deck into a space that feels brand-new from top to bottom.

Re-decking gives you flexibility to upgrade materials. Many homeowners in Colorado choose composite decking for its long lifespan and minimal upkeep. Others prefer the warmth of cedar or the affordability of pressure-treated lumber. We’ll help you compare options for durability, appearance, and budget—so your re-decking or extension project delivers exactly what you want.
Before we extend or resurface, our team inspects the existing structure to confirm it meets code and can handle additional weight. We reinforce or replace any weak framing, upgrade hardware, and pour new footings if required. This ensures your upgraded deck isn’t just beautiful—it’s safe, sturdy, and built to last through Colorado’s demanding climate.

Seamless Extensions: New sections blend naturally with your existing deck.
Smart Re-Decking: Save money by reusing a solid frame.
Material Choices: Wood or composite options to fit your lifestyle.
Safety First: Full structural inspection before every project.
Warranty Backed: Workmanship guarantee included with every upgrade.
Don't worry, we can help!
Re-decking and extensions are budget-friendly alternatives to a full replacement. Instead of tearing down and rebuilding, we reuse existing structures when safe, add square footage where needed, and upgrade finishes for a brand-new look. This approach saves money while delivering impressive results that add value to your home.
Lower cost than a full rebuild
Expands usable outdoor space
Increases curb appeal and property value
Many Colorado homes have decks that are structurally sound but dated or weathered. Re-decking allows you to upgrade to modern materials, fresh railings, and stylish finishes without starting from scratch. Deck extensions expand functionality, giving you space for outdoor kitchens, dining areas, or larger gatherings. Together, these upgrades make an old deck look and perform like new.
Here are some of the most common questions Colorado homeowners ask before extending or resurfacing a deck.
Yes, as long as the frame is structurally sound. We inspect and reinforce it before resurfacing.
Re-decking typically costs 30–50% less than a full replacement.
Absolutely. We engineer extensions for flat or sloped yards, with proper supports and footings.
Most projects are completed in 1–3 weeks, depending on size and scope.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Innovation
Fresh, creative solutions.

Integrity
Honesty and transparency.

Excellence
Top-notch services.
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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