Custom Deck Design & Construction in Smithtown, NY
Designed to handle Suffolk County winters and made for long, easy summers outside.
Picture stepping out from your Smithtown kitchen onto a wide, solid deck where the kids have space to play, the grill has a real home, and you finally have a spot to sit with coffee and watch the neighborhood wake up. That is what a well-built deck does: it turns the part of your property you barely used into the place everyone naturally gathers.
Around here, homes range from classic colonials to newer construction, and we tailor every design so it looks like it was always meant to be part of your house. We also know dealing with paperwork is no one’s idea of fun, so if the Town of Smithtown requires it, Decks Unique helps guide the permit process from start to finish. With strong ratings - 5.0 on Google and 4.7 on Angi's, you get a deck that is not only beautiful, but built to last, with low upkeep and materials made for Suffolk County weather.
- Licensed & insured in Suffolk County
- Over 39 years of deck-building experience
- Fast permitting if permits are needed
- Certified Trex Platinum & TimberTech Pro Installers
Transforming Outdoor Living for Smithtown Homeowners
For many Smithtown homeowners, the backyard is there, but it is not really part of daily life. A custom deck changes that. It becomes your outdoor dining room for weeknight dinners, your quiet spot for early-morning coffee, and the place where birthday parties, game days, and family barbecues just feel easier and more relaxed. We design decks that work with the way Smithtown homes are laid out, whether you have a split-level with sliding doors, a traditional colonial with a back stoop, or a raised ranch that needs better access to the yard.
We plan every project so it fits your routine: wide stairs down to a pool, a cozy corner for a fire table, or a long run of railing where you can set out food during a party. Most decks are completed in just 1-2 days, so the disruption to your home is brief and you are back to enjoying your yard before you know it. With the parks, beaches, and the Nissequogue River close by, a great deck lets you enjoy that same relaxed North Shore feeling without leaving home. It is like creating your own staycation spot right behind your back door, built to handle Suffolk County storms and summers year after year.
Trex, TimberTech & PVC Decking Options
Many Smithtown homeowners choose composite or PVC decking because they want a deck that looks great without constant sanding or staining. These materials are made from a blend of wood fibers and plastics, or all synthetic, and are designed to handle harsh weather, strong sun, and heavy use while keeping their color. The surface stays more stable, resists splintering, and is easier under bare feet than older-style lumber decks that weather quickly.
Trex offers several lines with different looks and price points. Signature and Transcend are their higher-end collections, with rich color blends and more realistic wood grain, while Select and Enhance provide attractive, budget-friendlier choices that still hold up extremely well. TimberTech’s collections offer similar flexibility, with premium lines that have a very natural appearance and more economical options that still deliver strong performance. Both brands give you boards that resist fading and staining, and their fade-and-stain warranties can range roughly from 25 years up to about 50 years depending on the exact product line you choose.
PVC decking is often preferred where moisture is a big concern, such as around pools or in shady yards where wood tends to stay damp. It does not absorb water the way wood can, which helps it stay lighter and more stable over time. Once we review how you plan to use your deck and how much maintenance you want to do, we will show you the Trex, TimberTech, and PVC options that fit best, then explain how they compare to natural wood.
Natural Wood Decking Choices
If you love the classic look and feel of real lumber, we also build beautiful wood decks throughout Smithtown. Cedar offers a warm, soft look and a pleasant natural scent, with an appealing grain that works nicely with traditional homes. Mahogany brings a richer color and a more refined appearance that pairs well with higher-end properties and detailed trim. Pressure-treated lumber is the most budget-friendly choice and is often used for simple, functional decks or as the framing beneath more premium surfaces.
Wood has a character that changes over time, and many homeowners enjoy the way it naturally weathers. In Suffolk County humidity and coastal air, though, it does need regular care. That means cleaning, sealing, and occasionally staining to protect against moisture, sun, and wear. We are always honest about that upkeep so you know what to expect. Some clients choose wood for the traditional look and lower upfront cost; others mix wood structures with composite or PVC surfaces to balance budget, style, and maintenance.
Why We Use KDAT Lumber for the Substructure
The part of your deck you do not usually see-the framing-matters just as much as the surface. We use KDAT (kiln-dried after treatment) lumber for our substructures because it starts out drier and more stable than standard pressure-treated wood. KDAT is kiln-dried and pre-stained brown, so it has a cleaner, finished look right from day one. This is a huge benefit for second-story decks in Smithtown where the framing is visible from the yard or patio below; instead of staring at greenish, uneven lumber, you see a neat, warm-toned structure.
Because the wood is dried after treatment, it is less likely to twist, cup, or shrink as it ages, which helps your deck stay flatter and tighter. Decks Unique is the only decking company on Long Island offering this level of framing upgrade, and it comes with a limited lifetime transferable warranty. That gives you and any future buyer confidence that the structure under your feet was built to a higher standard.
Choosing the Right Decking Materials
There is no one “best” decking material for every Smithtown home, which is why we walk you through the differences. Trex Signature and Transcend deliver the most upscale look and longest protection, while Select and Enhance provide solid performance with fewer color choices and a more modest price. TimberTech offers its own ranges, from premium boards with a very realistic wood appearance to more economical lines that still hold up well under daily use.
Underneath it all, our KDAT framing outperforms typical framing because it starts straighter, is kiln-dried, and arrives pre-stained brown for a cleaner look. That means a more stable platform for whatever decking surface you choose. During our consultation, we discuss how you use your yard, how much maintenance you are comfortable with, and your budget, then help you select the right mix of Trex, TimberTech, PVC, or wood on top of a high-quality KDAT structure.
Custom Features for Comfort, Style & Safety
The details you add to your deck make a big difference in how it feels and functions. We install many types of railings, including flat “cocktail” railings that give you a wide top surface for drinks and plates during parties, sleek cable railings that keep the view open toward your yard or pool, and low-maintenance vinyl railings that look clean and bright with very little upkeep. Each style supports safety while matching the look of your Smithtown home.
Lighting is another upgrade that changes everything. We can include LED stair riser lights so steps are clearly visible after dark, glowing post-cap lights along the perimeter, and soft ambient lighting under railings or benches. This not only looks great in the evening but also makes it easier and safer for guests to move around. For sunny backyards or decks that face the water, shade structures like pergolas, roof extensions, or privacy screens help block strong afternoon sun and add a feeling of privacy. All of these options are customized so your deck is comfortable on breezy North Shore evenings and bright summer days alike.
Visit Our Commack Showroom
Many Smithtown homeowners find it much easier to make decisions once they can see and touch real materials. Our Commack showroom is a short drive along major North Shore routes and is set up so you can walk on full-size deck displays, compare different railing systems, and see lighting demonstrations in person. You will be able to look at Trex and TimberTech boards side by side, feel the difference between composite, PVC, and wood, and view a range of colors and textures under natural-style lighting.
The showroom is convenient for Smithtown residents who want to meet directly with a designer, review plans, and talk through ideas without guessing from small samples. We take the time to explain how each choice will perform in Suffolk County conditions and how it will look attached to your style of home. That in-person guidance builds trust and helps you leave confident that your new deck will match your vision and your budget.
Awards & Professional Recognition
In the decking world, awards are not just trophies for the wall-they are proof that a company shows up, does quality work, and treats homeowners right year after year. Groups like NARI, NADRA, and the Better Business Bureau look closely at craftsmanship, professionalism, and customer feedback before recognizing a contractor. Industry lists such as the Remodeler 500 highlight companies that consistently deliver at a high level, while manufacturer badges from Trex and TimberTech are only given to installers who meet strict training and performance standards.
Decks Unique has earned these honors by focusing on careful planning, clean jobsites, and decks that perform long after the crew has left. For Smithtown homeowners, these awards make it easier to choose a builder you can trust with your home and your family’s outdoor space.
Our Workmanship & Product Guarantees
When you build a deck, you are investing in your home for the long term, so the protection behind that project matters. Decks Unique stands behind our work with a lifetime workmanship guarantee, meaning we back the way your deck is put together for as long as you own your home. As a Trex Platinum installer, eligible Trex Signature and Transcend projects also qualify for a 10-year Trex labor warranty, which adds manufacturer-backed coverage on top of our own promise. Trex products offer fade-and-stain warranties of about 50 years for Signature and Transcend, 35 years for Select, and 25 years for Enhance Naturals and Enhance Basics, helping your deck keep its color and surface over time.
TimberTech lines include fade-and-stain warranties that typically run from 25 to 50 years, depending on the exact collection you choose. For homeowners who prefer real lumber, our wood decks come with a lifetime decay guarantee on the treated framing material, so you are protected against structural rot under normal conditions. Our KDAT framing carries a limited lifetime transferable warranty as well, which is a major advantage if you ever decide to sell your Smithtown home. Put together, these protections mean your deck is covered from the framing to the finish.
Built for Smithtown: Local Engineering Considerations
Designing a deck for Smithtown is about more than just picking a color. We pay close attention to local soil conditions, frost depth, and the strong coastal winds that can roll in across Suffolk County. Footings are sized and placed to support your specific layout, and connections back to the house are detailed to help the structure stay secure for the long term. We use hardware and installation methods chosen for this climate, always balancing strength, code requirements, and the look you want. The result is a deck that feels solid underfoot and is engineered for the way we actually live on Long Island.
Soil & Footings
Smithtown has a mix of sandy and loamy soils, and winter frost can push on anything that is not set deep enough. We size and install concrete footings to reach below the local frost line so they are less likely to move when the ground freezes and thaws. That helps keep your deck level, reduces bouncing, and supports the weight of furniture, people, and snow in a clear, reliable way.
Wind & Uplift Protection
Being close to the North Shore means decks in Smithtown can see strong gusts during storms. We address this with reinforced connections, proper lateral bracing, and hurricane-rated hardware where appropriate. These details help the deck resist uplift and sideways forces, so railings feel solid and the entire structure is better prepared for Suffolk County wind events.
Permits & Inspections
In some cases, permits may be required for deck projects in Smithtown, especially for new structures or major changes. When that happens, Decks Unique guides the entire process with the Town of Smithtown building department, helping with drawings, submissions, and inspections. Our experience reduces delays and makes it easier for your project to move smoothly from planning to final approval.
Composite vs Wood Comparison Table
| Feature | Composite / PVC (Trex & TimberTech) | Natural Wood (Cedar, Mahogany, Pressure-Treated) |
|---|---|---|
| Maintenance | Occasional cleaning with soap and water; no regular staining or sealing required. | Needs periodic cleaning, sealing, and often staining to protect against Suffolk County moisture and sun. |
| Appearance Over Time | Designed to resist fading and staining, keeping color and finish more consistent for decades. | Develops a weathered look; color can change or gray out if not maintained regularly. |
| Lifespan | Long service life with fade-and-stain warranties that can range from about 25 to 50 years. | Can last many years with proper care, but more sensitive to rot and decay if neglected. |
| Upfront Cost | Higher material cost but lower long-term upkeep, especially for larger decks. | Generally lower initial cost, but maintenance products and labor add up over time. |
| Comfort & Feel | Smooth, splinter-resistant surface; many options designed to stay cooler and more comfortable underfoot. | Natural texture and warmth; can splinter or warp if not properly maintained. |
How We Build Decks Designed to Perform for Years
Materials matter, but so do the details you cannot see. We use joist tape on top of framing members to help protect the wood from moisture that can sit between the boards and the structure, which is especially helpful in Suffolk County’s damp spring and fall seasons. Proper ledger flashing where the deck meets the house is another key step; it helps divert water away from your home’s framing so both the house and deck remain better protected against leaks.
We often picture-frame our decks, running a border board around the outside. This not only looks more finished but also helps hide cut ends and gives the structure a cleaner, straighter line. Fasteners are chosen for outdoor coastal conditions-stainless steel or high-quality ceramic-coated screws and hidden systems that reduce staining and rust. While no deck can be completely maintenance-free, building with these practices helps your Smithtown deck stay stronger, look better, and perform well for many seasons.
Deck Pricing in Smithtown
Deck costs in Smithtown depend on more than just how many square feet you build. The materials you choose-Trex, TimberTech, PVC, or natural wood-have different price ranges, and railings, lighting, and trim details also affect the final number. Multi-level layouts, long sets of stairs, and elevated designs that need additional framing or larger footings will add to the investment because they require more labor and materials.
During our consultation, we walk through these options with you so there are no surprises. We can often present a few different configurations, from a simple, functional layout to a more feature-rich design, so you can choose what fits your budget and priorities. Financing is available for qualified homeowners, which can make it easier to get the deck you really want without waiting years. Ready to see what your Smithtown project might cost?
Frequently Asked Questions
Can you build a deck on my sloped Smithtown backyard near the Nissequogue River?
Yes, we regularly design decks for sloped and uneven yards in Smithtown, including properties near the river and wooded areas. We may use taller posts, additional bracing, or integrate a few shorter stair runs and landings so the deck feels natural with the grade. During our visit, we measure the slope, look at drainage, and then create a design that is stable, comfortable, and takes advantage of your views.
Do I always need a permit for a deck in Smithtown?
Not every project requires a permit, but in some cases, permits may be required based on the size, height, or location of the deck. We are very familiar with Town of Smithtown rules and will let you know early on if your design is likely to need one. When it does, we help with the drawings, paperwork, and inspection scheduling so the process is as simple as possible for you.
How long will my deck take to build once you start?
Once materials are on site and we begin construction, most projects are completed in 1-2 days. Larger, more complex decks with multiple levels, heavy lighting packages, or integrated shade structures can take a bit longer. We set expectations clearly before work begins and keep you updated so you always know what is happening at your Smithtown home.
What is the best decking material for Suffolk County weather-Trex, TimberTech, wood, or something else?
There is no single best choice for every homeowner. Trex and TimberTech composites and PVC are great for those who want low maintenance and strong fade-and-stain protection in our hot summers and snowy winters. Natural wood like cedar or mahogany is ideal if you prefer a classic look and do not mind regular staining and sealing. We also pair all of these options with our KDAT framing, which gives you a straighter, more stable substructure than standard pressure-treated lumber.
Can you build decks during the colder months in Smithtown?
We can usually build decks throughout much of the year, as long as the ground is not deeply frozen and conditions are safe for our crews. Off-season builds in Smithtown can actually be a smart choice because schedules are often more flexible and your deck is ready for use as soon as warm weather returns. We adjust our methods for cold-weather work, especially around concrete footings and adhesives, to help your deck perform well over time.
Your Local Deck Builder Serving Smithtown
Decks Unique has been building decks across Smithtown and the rest of Suffolk County for decades, combining thoughtful design with solid engineering and clean, respectful job sites. Homeowners appreciate that we handle the details, explain options in plain language, and stand behind our work with strong guarantees and ratings like 5.0 on Google and 94% on Facebook. Whether you are replacing an aging deck or creating an outdoor living space for a new home, our team is ready to help you plan every step.
Contact Us for a Free Quote
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Service Areas
Decks Unique proudly serves homeowners in Smithtown and nearby North Shore communities throughout Suffolk County. Our crews regularly work in surrounding neighborhoods and are familiar with local styles, conditions, and preferences. We also serve nearby ZIP codes 11725, 11754, 11755, 11767, 11768, 11780, 11787, 11788, 11790, bringing the same level of craftsmanship and service to every project.
