

Cedar is prized for its natural resistance to insects and decay, with a rich color tone that weathers beautifully over time. Pressure-treated wood is an economical option that’s infused with preservatives to resist rot and withstand ground contact—ideal for structural framing and large surface areas. Both options offer a natural look, custom stain flexibility, and sturdy performance when properly installed and maintained. Our team helps you choose the right material based on your design goals, maintenance preferences, and budget.
Wood decks offer classic curb appeal with unmatched customization. With cedar or pressure-treated lumber, every cut and board can be tailored on-site to match your home’s layout or landscape slope. Cedar is known for its fine grain, rich aroma, and dimensional stability. Pressure-treated wood gives you reliable strength at a lower cost and accepts stains or sealants in your preferred tone. Both materials can be shaped to include benches, privacy walls, or custom stairs—all while delivering a sturdy outdoor foundation.
Hand-cut details & custom fits on-site
Paint, stain, or natural finish options
Wood sourced & treated for NH conditions

From the first consultation to the final screw, we follow a proven process to ensure your wood deck is solid, safe, and visually stunning. We begin by surveying your space, designing a layout, and preparing the soil with proper grading and drainage. Pressure-treated posts and beams form the foundation, while deck boards—either cedar or treated—are cut and installed with precision. We finish edges, install railings, and complete the build with protective sealants or your chosen stain. Our clean, methodical approach results in a deck that feels natural and performs reliably.

Cedar is a softwood known for its dimensional stability and built-in oils that resist rot and insects. It offers a smooth, natural surface ideal for barefoot comfort and visual warmth. Pressure-treated wood is chemically infused for longevity and often used for framing or full-deck builds when affordability and strength are key. Both woods perform well in New Hampshire when properly spaced, sealed, and maintained. We’ll guide you through choosing the right wood type and finish to match your home and seasonal exposure.
New Hampshire’s freeze-thaw cycles, snow loads, and humid summers demand strong construction and smart material use. We install footings below frost lines, use galvanized fasteners to prevent rust, and space boards for ventilation and drainage. Pressure-treated wood is selected for ground contact areas, while cedar is used where beauty and comfort matter most. All cuts are sealed to protect ends from moisture absorption. Whether you’re in Nashua or Laconia, we build with the seasonal challenges of your area in mind.

Cedar & PT Experts: Pro guidance on wood types & finishes
Site-Specific Builds: Decks tailored to your yard & slope
Custom Fit & Cut: On-site board shaping for seamless look
Built for Snow & Sun: Framed for freeze-thaw resistance
Local Permit Know-How: We handle code, inspections & approvals
Don't worry, we can help!
Our team manages the entire process—from your first estimate to the final coat of sealer. We handle permits, source premium wood, and ensure every board is installed with precision. We take pride in leaving your yard clean and your deck ready for use. Whether you're looking for rustic cedar or long-lasting pressure-treated lumber, we’ll guide you to the right decision for your home and lifestyle.
Full project management & timeline updates
Hand-selected lumber & clean installation
Final walk-through & satisfaction check
Not sure which wood is right for you? We’ll meet you on-site to talk through the benefits of cedar and pressure-treated decking. We’ll inspect the space, take measurements, and offer layout ideas that work for your property and goals. From there, we’ll send you a detailed, no-obligation quote with line-item pricing. Whether you're planning a simple square platform or a full wraparound design, we’re ready to bring your vision to life with real craftsmanship.
Your outdoor space deserves more than just boards and nails—it deserves care, vision, and a builder who listens. At Alliance Deck Builders of New Hampshire, we create decks and structures that are both durable and deeply personal. Whether it’s a family cookout spot or a peaceful retreat, we’re here to help you bring it to life. Reach out today for a free consultation and see why homeowners across New Hampshire trust us to build what matters.
With proper maintenance, cedar decks last 15–25 years, while treated wood can exceed 30 years.
Yes. We recommend sealing all wood decks to protect from moisture, UV, and insects—especially in New England’s climate.
Pressure-treated wood is typically more affordable and ideal for structural builds or large surfaces.
Most wood decks are completed in 2–3 weeks, depending on size and features.

Tailored decks for your home’s layout, style, and terrain.

Trex, TimberTech & more—designed for durability and style.

Classic materials built to handle New England’s seasons.

Safe, stable, and code-compliant solutions for aging decks.

Sanding, staining, and sealing to revive wood decks.

Tiered designs for slopes, pools, or outdoor entertaining.

Add square footage or upgrade boards without full rebuild.

Shade and shelter built into your deck design.

Enjoy fresh air without bugs or weather interference.

Fully integrated cook spaces for outdoor living.

Elegant structures for shade, beauty, or plant support.

Slip-resistant, stylish, and safe wet-area decks.

Fully framed, code-compliant outdoor buildings.

Safe, stylish railing and stair solutions.

Rooftops, restaurants, patios & hospitality spaces.

Innovation
Fresh, creative solutions.

Integrity
Honesty and transparency.

Excellence
Top-notch services.
Ready to build the deck you’ve always wanted? Let’s talk. Alliance Deck Builders of New Hampshire offers free estimates, friendly service, and expert craftsmanship from day one. Give us a call or fill out our quote request form today—your future favorite space is just a few steps away.

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