Quality carpentry for decks,
porches, pergolas and fences

We handle everything from small repairs to full outdoor expansions.

Straightforward pricing, solid workmanship and a focus on long term durability.

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Deck built by Sierra General Construction

Quality work and a builder you can rely on

At Sierra Construction, we build outdoor spaces that feel good to use and stay strong through New Hampshire’s toughest seasons. We keep the process simple, explain your options clearly, and show up when we say we will.

  • You get guidance on choosing materials that won’t fail after winter
  • Clean, straightforward pricing
  • A team that communicates throughout the entire project

From quick repairs to full builds, everything we create is meant to look great, stay solid, and give you peace of mind for years.

We hired Sierra to rebuild our deck, and the whole experience was excellent. Everyone was patient and clear, even when we changed our minds a few times. Oliver walked us through the details and made sure we understood what we were getting. Workmanship really shows in the finished deck. It looks great and feels solid. Very happy we chose them!

For background, I had a tricky project involving a large deck and a covered section tied into the house. Sierra handled it better than I expected. Bryan came out several times to help me think through options, materials, and the permitting steps. Once we moved forward, they started quickly and stayed on schedule. The crew checked in regularly, aske...

Sierra delivered exactly what we hoped for. The team was professional, easy to communicate with, and kept everything moving without creating extra stress for us. The new deck turned out beautiful and added usable space we didn’t have before. They made the whole process simple. Would absolutely recommend them.

We had a few miscommunications between our landscaper and Sierra, but they sorted everything out quickly and kept the project on track. I was surprised at first that one person handled most of the build, but the craftsmanship really impressed me. The deck turned out better than I pictured. I learned a ton along the way and appreciate how patient th...

Sierra Construction finished our new composite deck recently, and we couldn’t be happier. They removed the old structure, rebuilt the frame, and the finished deck is sturdy and beautiful. Everyone we met was polite and genuinely cared that we were satisfied. The attention to detail was clear from start to finish. We would gladly recommend them to a...

Sierra’s crew did a very good job resurfacing our deck and installing new railings. The workmanship was solid and the foreman, Bryan, was great about walking me through what they were doing. I’m giving four stars instead of five because a couple of additional costs weren’t explained clearly in advance, but the quality of the finished work is excell...

Proudly serving New Hampshire

Local New Hampshire Outdoor Living Space Builders

Sierra Construction is a family-owned New Hampshire company focused on building outdoor spaces that feel solid, welcoming, and made for real New England living. We combine hands-on carpentry experience with a builder’s mindset for structure, durability, and clean design. Homeowners work with us because we show up, communicate clearly, and treat every project as if we were building it for our own home.

We specialize in decks, porches, pergolas, fences, patios, sheds, and other custom outdoor structures across southern and central New Hampshire. Our goal is simple: create outdoor spaces that hold up through long winters, heavy snow loads, and the everyday use of a busy household. We take the time to understand what the homeowner actually needs, explain the options without pressure, and recommend solutions that make sense for the long term.

What sets Sierra Construction apart is the combination of craftsmanship and straightforward service. You won’t deal with disappearing contractors, vague estimates, or rushed work. You get a team that answers questions, keeps you updated, and builds with pride in every detail. Planning a new deck? Upgrading an existing outdoor space? Sierra Construction is here to help you shape a place you’ll enjoy for years.

Deck Builders in New Hampshire

A well-built deck becomes an extension of the home, and in New Hampshire it also needs to handle moisture, freeze–thaw cycles, and heavy snow loads. As established deck builders in New Hampshire, Sierra Construction focuses on structures that feel sturdy underfoot, look clean, and last for decades with proper maintenance. We work with pressure-treated lumber, cedar, composite systems, and modern railing options to match both the architecture of the house and the homeowner’s style.

For many clients, the first question is whether to upgrade or start fresh. We walk the property, examine the framing, inspect footings, and give clear recommendations without guessing or upselling. Some decks only need targeted work, while others require full replacement to meet safety standards. Our goal is to deliver a deck that feels safe, stable, and inviting – something you can confidently use all year without worrying about structural issues.

Homeowners choose Sierra Construction because we communicate, stay on schedule, and build with precision. Every deck project gets a tailored approach: proper drainage planning, weather-resistant materials, smart layout decisions, and attention to small details that matter later. Whether it’s a simple backyard platform or a multi-level deck overlooking a wooded lot, we build spaces designed for real New England living.

Deck Repair

New Hampshire weather is tough on older decks, and many homeowners come to us unsure whether their structure is still safe. Our deck repair service starts with a detailed inspection of framing, footings, railings, and surface boards. We look for moisture damage, rot, loose fasteners, and shifting caused by frost heave. Once we understand the condition of the deck, we outline practical repair options and explain what will extend the life of the structure versus what may only be a short-term patch.

Some decks only need new railings or a section of framing rebuilt, while others require replacing worn boards, tightening hardware, and reinforcing weak points that have developed over time. Sierra Construction focuses on long-lasting solutions that improve both safety and appearance. Homeowners appreciate that we fix what truly needs fixing and help them avoid unnecessary replacements while still ensuring a deck that feels solid and dependable.

Fence Company New Hampshire

As a fence company in New Hampshire, Sierra Construction builds and repairs fences that stand up to shifting soil, winter storms, and the natural landscape of the region. Every yard is different, so we start by understanding the purpose of the fence – privacy, pets, security, or aesthetics – and then match the right materials to the property. We install wood, vinyl, and composite fencing, making sure the layout works with slopes, trees, set-backs, and any local requirements.

Homeowners often come to us because their existing fence is leaning, sagging, or showing signs of rot. Our team handles everything from replacing single sections to rebuilding entire runs that no longer hold up structurally. Fence repair can often extend the life of a fence without the cost of a full replacement, and we always explain both options clearly.

A well-built fence adds value and character to a property, but more importantly, it should function year-round in a climate that can be unforgiving. Sierra Construction takes the time to set proper posts, ensure clean alignment, and choose hardware that won’t fail after one harsh season. The result is a fence that looks good, holds its shape, and fits the way the homeowner uses their outdoor space.

Fence Repair

Fence repair in New Hampshire often involves dealing with rot, frost heave, leaning posts, and panels weakened by years of weather. Sierra Construction approaches each repair with a focus on restoring structural integrity first, then appearance. Whether a single section needs reinforcement or multiple posts must be replaced, we make sure the fence stands straight, secure, and ready for long-term use.

Gazebo and Pergola Contractor in New Hampshire

As a gazebo and pergola contractor in New Hampshire, Sierra Construction designs and builds outdoor structures that feel natural in the landscape and hold up through every season. These additions can create shade, define a gathering area, or add an architectural focal point to the yard. We help homeowners choose the right style, layout, and materials so the structure looks intentional and fits the purpose it’s meant to serve.

New Hampshire weather demands stronger framing, proper anchoring, and materials that won’t twist or deteriorate after the first heavy winter. Our builds prioritize durability without sacrificing the clean, finished look homeowners want. Whether it’s a simple pergola for summer afternoons or a more substantial gazebo used into the fall, we create spaces that blend beauty with real performance.

Patio Builder

A patio can transform the way a yard functions, especially in a state with distinct seasons like New Hampshire. As a patio builder, Sierra Construction focuses on layouts that handle drainage correctly, resist shifting, and tie naturally into existing decks, porches, or walkways. We work with pavers, stone, and composite surfaces, helping homeowners choose materials that match both the home’s style and the demands of the local climate.

Many patios built decades ago start to settle unevenly, collect water, or crack as frost pushes the soil around. We rebuild these spaces with proper base preparation, compacted layers, and edge restraints so the surface stays stable for years. When constructing new patio covers, we pay close attention to how water moves across the yard and ensure the design directs runoff away from the home.

Homeowners appreciate that our patios feel intentional rather than just “added on.” By blending practical engineering with clean design, Sierra Construction creates outdoor areas that feel comfortable to use, reduce maintenance headaches, and bring long-term value to the property.

Porch Contractor

As a porch contractor, Sierra Construction builds porches that feel like a natural extension of the home rather than an afterthought. New Hampshire porches take a lot of abuse from snow, rain, and rapid temperature swings, so we focus on strong framing, durable flooring, and railings that stay solid over time. Whether it’s a classic front porch or a covered back entry, we build structures that look clean, balanced, and ready for everyday use.

Many older porches were built before current standards and start to sag, pull away from the house, or show signs of moisture damage. When we design a new porch, we address all the weak points, such as proper footings, correct flashing, load-rated materials, and smart structural details that prevent future issues. The result is a porch that not only looks inviting but also feels stable year-round, even under heavy foot traffic and winter conditions.

Porch Repair

Porches in New Hampshire often experience soft spots, loose railings, sagging steps, and structural wear caused by years of moisture and freezing temperatures. Our porch repair work starts with identifying the underlying issues rather than just fixing the visible damage. We check the framing, ledger connections, footings, and flooring to understand what needs reinforcement and what can be restored without a full rebuild.

Once the structure is secure, we focus on the details that make a porch feel comfortable and safe to use every day. This may include replacing worn boards, tightening railings, repairing steps, or upgrading trim and finishes. Sierra Construction aims to extend the life of your porch while improving both appearance and usability, giving homeowners a sturdy, clean, and reliable entryway once again.

New Hampshire Sheds

New Hampshire sheds need to do more than store tools – they must withstand snow loads, fluctuating temperatures, and ground movement from frost. Sierra Construction builds sheds with the same care and structural planning that goes into our larger outdoor projects. We use proper foundations, reinforced framing, and exterior materials chosen specifically for the climate, so the shed stays dry, solid, and functional through every season.

Homeowners often come to us because premade big-box sheds fail within a few years. Doors warp, floors soften, roofs sag under snow, and moisture becomes an ongoing problem. Our custom-built sheds avoid these issues by focusing on long-term durability. Whether you need a simple storage shed, a garden shed, or a small backyard workshop, we create a structure that looks clean on the outside and feels reliable on the inside — something you can count on for many years.

Why Homeowners Choose Sierra Construction

Homeowners across New Hampshire choose Sierra Construction because they want outdoor living spaces built with care, communication, and long-term durability in mind. Our approach is straightforward: show up when we say we will, explain every step clearly, and build structures that feel solid from day one. Whether it’s deck repair, custom pergolas, new patio covers, or structural porch work, we treat each project with the same attention to detail as if we were building it for our own family.

Another reason people trust us is our understanding of New England conditions. Heavy snow, steep temperature drops, and shifting soil can ruin poorly built outdoor structures. We design every deck, fence, gazebo, and shed with those challenges in mind, using materials and methods proven to last. The result is work that not only looks clean and well-finished but also performs year after year. Sierra Construction isn’t just a contractor — we’re a long-term partner in shaping outdoor spaces that homeowners are proud to use and enjoy.

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