More Space. Better Materials. Same Foundation.

Deck Extensions & Re-Decking in Montana

Save the Frame Upgrade Everything Else

What Re-Decking Involves and When It Makes Sense

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 Ideal for Montana homes with aging cedar, pressure-treated, or outdated composite decks.

More Room to Relax, Host, or Add Value

Why Extend Instead of Rebuild

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 extension under construction with framing matching original build

Cost-Smart, Code-Safe, Montana-Strong

How We Reinforce & Upgrade as We Go

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 When we extend or re-deck, we often reinforce the frame, replace outdated hardware, and adjust footings to support new loads.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.

Cedar, composite, and pressure-treated decking samples laid out on-site in Montana

Re-Deck with Cedar, Composite, or Pressure-Treated

Material Options That Match Your Budget and Style

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.

Less Disruption. Faster Results.

Why Montana Homeowners Choose Re-Decking

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.

Montana deck during re-decking with old boards removed and new framing reinforcement

Why Montana Homeowners Choose Us for Re-Decking

  • 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!

New Life for the Deck You Already Own

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

Built to Handle Montana’s Loads, Codes & Climate

Smart Extensions That Stand the Test of Time

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.

Upgrade Without Starting Over

Montana Deck Extensions & Re-Decking FAQs

Here’s what homeowners across Montana ask most about expanding or re-surfacing their decks:

Can I keep my old frame and just replace the boards?

Yes if the frame passes inspection. We’ll check it first and recommend any reinforcements.

How do you match new materials to the old deck?

We source stains, textures, and board sizes that align with your existing style—or recommend full upgrades for a fresh start.

Is a permit required for extensions?

Usually, yes. We handle all permitting for size increases, structural changes, or code upgrades.

Can you add stairs or landings to an existing deck?

Absolutely. We add stairs, landings, and railings that meet code and integrate cleanly with your current setup.

Deck Extensions Are Just the Beginning

Explore All Our Outdoor Living Services

Custom deck design and construction in Montana

Deck Design & Construction

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

Composite deck installers using Trex and TimberTech in MT

Composite Deck Installation

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

Cedar and pressure-treated deck builders in Montana

Wood Deck Building

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

Structural deck repair and joist replacement in Montana

Deck Repair & Structural Reinforcement

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

Deck refinishing and restoration services in Montana

Deck Restoration & Refinishing

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

Multi-level decks for sloped terrain in Montana

Multi-Level Deck Construction

Deck refinishing and restoration services in Montana

Re-decking and deck extension services in Montana

Deck Extensions & Re-Decking

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Covered decks and patio roofs built in Montana

Covered Decks & Patio Roofs

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

Screened porches and sunrooms installed in Montana

Screened-In Porches & Sunrooms

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

Custom outdoor kitchens and BBQ decks in Montana

Outdoor Kitchens & Grilling Stations

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

Pergola and gazebo builders for Montana homes

Pergolas, Gazebos & Arbors

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

Pool decks and hot tub platforms built in Montana

Pool Deck & Hot Tub Surrounds

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

Detached garages and custom sheds in Montana

Detached Garages & Sheds

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.

Custom Deck Railings & Stairs

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

Commercial and rooftop deck builders in Montana

Commercial Deck Projects (Restaurants, Rooftops, etc.)

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

Icon showing two connected decks for extensions

Innovation

Fresh, creative solutions.

Icon showing planks being replaced for re-decking

Integrity

Honesty and transparency.

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Excellence

Top-notch services.

Ready to Build? Let’s Talk Decks

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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