

Re-decking replaces your old surface boards while keeping the existing frame intact if it passes inspection. We start by assessing your deck's joists, fasteners, and footings. If it’s structurally sound, we remove the old decking, make minor framing fixes, and install new wood or composite boards. It’s a cost-effective way to get a like-new look and feel without full demolition. Ideal for Montana homes with aging cedar, pressure-treated, or outdated composite decks.
If your deck is too small or no longer fits your lifestyle, an extension is often the best solution. We design seamless add-ons that match your existing layout, elevation, and materials. Whether you need more room for dining, a new stair landing, or extra space for a hot tub, we build additions that look original not tacked on. Montana homeowners love this option for growing families, entertaining, or prepping a home for resale.
Seamless additions to match current deck
Options for wraparound or L-shaped layouts
Ideal for sloped yards and walkouts

Deck upgrades aren’t just cosmetic we make sure every bolt and bracket meets modern code. When we extend or re-deck, we often reinforce the frame, replace outdated hardware, and adjust footings to support new loads. That means better safety and performance without needing to start from scratch. And with options like composite re-decking, your new surface can last 25+ years with minimal upkeep.

We offer a full range of re-decking surfaces from natural cedar and pressure-treated pine to modern composites like Trex and TimberTech. Want the warmth of wood? We’ll help you choose the right species and finish. Prefer low-maintenance living? Composite delivers lasting color with no sanding or sealing. Whatever your goals, we install clean, code-compliant surfaces that blend seamlessly with existing structures.
Re-decking and extensions are fast, cost-effective ways to improve your outdoor space. Most projects take just a few days and require minimal demolition. You keep the original deck footprint or expand it without a full tear-out. Our Montana-based crews manage the entire process, from structural review and permitting to cleanup. You get a better deck, built on the bones of the one you already love.

Structural Assessments Included: We inspect before we build—safety always comes first.
Matched Materials: We blend new and existing elements for a seamless finish.
Cost-Effective Upgrades: Save thousands vs. a full tear-down and rebuild.
Code-Compliant Repairs: Reinforcements and fasteners brought up to modern standards.
Fast Project Turnarounds: Most extensions and re-decks completed in just a few days.
Don't worry, we can help!
If your deck is tired, dated, or undersized, re-decking or expanding might be the perfect solution. Our crews have upgraded hundreds of Montana decks without full replacement—saving time and money while improving safety and curb appeal. From materials to permits, we take care of everything so you can enjoy your new space sooner.
Great option for aging cedar or pressure-treated decks
Composite re-decking improves longevity and looks
Extensions add function without major construction
Montana weather is tough on decks—especially older builds. That’s why we don’t just “add on.” We reinforce every new section to handle snow load, wind pressure, and seasonal movement. We match or upgrade footings, update hardware, and anchor frames using approved methods. Whether we’re tying into an existing deck or refreshing the surface, our work is done to last.
Here’s what homeowners across Montana ask most about expanding or re-surfacing their decks:
Yes if the frame passes inspection. We’ll check it first and recommend any reinforcements.
We source stains, textures, and board sizes that align with your existing style—or recommend full upgrades for a fresh start.
Usually, yes. We handle all permitting for size increases, structural changes, or code upgrades.
Absolutely. We add stairs, landings, and railings that meet code and integrate cleanly with your current setup.

150-char Text: Start-to-finish design and build services tailored to your needs, property layout, and Montana’s outdoor climate.

150-char Text: Long-lasting, low-maintenance decks built with premium materials like Trex, TimberTech, and Fiberon.

150-char Text: Durable and natural cedar or pressure-treated decks with expert finishing for Montana’s seasons.

150-char Text: From sagging joists to cracked planks, we restore deck strength and safety with local code compliance.

150-char Text: Power sanding, sealing, and staining services to breathe new life into aging wood decks.

Deck refinishing and restoration services in Montana

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150-char Text: Protect your space with custom-built patio covers, overhead roofs, and insulated panels.

150-char Text: Keep bugs out and comfort in with fully enclosed porch systems and sunroom conversions.

150-char Text: Built-in countertops, sinks, and grills for backyard chefs and entertainers alike.

150-char Text: Shade structures built with beauty and function in mind—ideal for gardens or patios.

150-char Text: Slip-resistant, water-safe deck designs customized for spas, pools, and retreats.

150-char Text: Storage, workshops, and garages that blend with your property and meet code.

150-char Text: Safety meets style with cable rails, privacy panels, and reinforced stair systems.

150-char Text: Durable, ADA-compliant decks for businesses, venues, and public spaces.

Innovation
Fresh, creative solutions.

Integrity
Honesty and transparency.

Excellence
Top-notch services.
Whether you're looking to add a sun-soaked patio, rebuild a storm-damaged deck, or design a multi-level masterpiece, we’re ready to help. Alliance Deck Builders of Montana brings expertise, materials, and trust to every job no matter the size. Contact us today to schedule your free consultation and let’s bring your outdoor vision to life.

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