alcoimprovements@gmail.com

Custom Deck Building in Sparta, NJ

New decks designed around your yard, your home, and how you want to use the space, built by one local crew.

About the service

New deck construction done right

A new deck is one of the best things you can add to a house. It gives you room to cook, relax, and host without the cost of a full addition, and a solid one adds real value when you sell. We build decks of every size, from a simple platform off the back door to a multi-level layout with built-in seating and lighting. Every build starts the same way. We look at your yard, your grade, your access, and how you actually want to use the space, then design a deck that fits the house instead of fighting it. Attached or freestanding, ground-level or raised, we build it to suit your property and your budget.

Large multi-level treated deck on a blue house, side angle
Our process

How we build your deck

Deck framing with pressure-treated joists and beams before decking goes down

A foundation that lasts

We set footings below the frost line and frame with the correct spans and hardware, so your deck stays level and solid for years, not just through the first winter. On larger or raised decks we can frame with steel or aluminum systems from Fortress, Owens Corning, or TimberTech.

Close-up of gray composite decking boards with wood-grain texture on a backyard deck

The decking you choose

We install composite, Trex, treated wood, or natural wood, with hidden fasteners where the material allows for a clean surface with no exposed screws. Our composite lines include Trex, Fiberon, TimberTech, Deckorators, and Eva-Last.

Front porch with white railings and stairs on a Sussex County home

Railings, stairs, and finishing touches

Cable, glass, metal, or wood railings, plus stairs, skirting, and low-voltage lighting to finish the deck the way you pictured it.

What to expect

What to expect when you hire us

We start with a free on-site visit to measure and talk through ideas, then put together a written estimate that lays out materials and labor. Once you approve it, we pull the permits, order the materials, and schedule the build. You get one crew from start to finish and a point of contact you can actually reach. When we are done, we clean up the site and walk the finished deck with you so you know it is right before we leave.

FAQ

Deck building questions

Have a question that is not here? Call (973) 900-0219 and ask.

What size deck should I build?

It depends on how you want to use it and how much yard you want to keep. We help you find the balance during the estimate, and we can stake out the footprint so you can stand in the space before you commit.

Do I need a permit for a new deck?

In most cases, yes. We handle the permit and build to code so your deck passes inspection without a headache on your end.

Composite or wood for a new build?

Wood costs less up front and looks classic but needs regular staining. Composite and Trex cost more to install and then only need a wash. We lay out both so you can choose based on budget and how much upkeep you want.

Why Alco Decks

Why homeowners choose Alco Decks

One crew, start to finish

The same team that quotes your deck builds it. No handoffs to subcontractors you never met.

Built to code and built to last

Proper footings, correct framing, and materials rated for New Jersey winters.

Honest, written pricing

A clear estimate up front, and the price we quote is the price you pay unless the scope changes.

Local and easy to reach

We are based in Sparta and stay close through the whole build.

Ready to build your deck?

Tell us what you are thinking and we will come measure and give you a free written estimate. No pressure, no obligation.

or call (973) 900-0219

Call Free Estimate