
Custom decks across Nassau and Suffolk County since 1996
Level Line designs and builds custom decks across Nassau and Suffolk County: new builds, deck repair, resurfacing and refinishing, deck replacement (a tear-out and a rebuild on a new frame) and pool decks. The company is family-owned by Mark Villarico, has built on Long Island since 1996 and has completed more than 4,000 projects, it is licensed in both counties and listed with the Better Business Bureau, and no job is too big or too small. A design starts with a free estimate at the house, where the layout, the decking and the railing are worked out with you on site.
See the towns we build inCustom Design
A layout drawn for your house and lot, worked out with you at a free estimate.
Quality Materials
Trex, TimberTech, Azek, Fiberon, cedar, pressure-treated lumber, mahogany and ipe.
Expert Craftsmanship
Footings, framing and salt-rated hardware, built by a crew licensed in Nassau and Suffolk.
Durability
Boards that resist rot, warping and fading, backed by the manufacturer's warranty.
Comprehensive Service
Everything you need from concept to completion.
Decking we install
Level Line installs the composite and PVC lines that resist rot, warping and fading in salt air and sun, and the natural woods for homeowners who want the real thing. For Trex, TimberTech, Azek and Fiberon, Level Line is a manufacturer-certified installer.
Trex
Composite decking. Manufacturer-certified installer.
TimberTech
Composite decking. Manufacturer-certified installer.
Azek
PVC decking. Manufacturer-certified installer.
Fiberon
Composite decking. Manufacturer-certified installer.
Cedar
Natural wood with its own color and grain. It needs regular upkeep near the water.
Pressure-treated lumber
The traditional wood deck board. It needs staining or sealing and regular upkeep over its life.
Mahogany
A hardwood board for a homeowner who wants real wood underfoot.
Ipe
A dense tropical hardwood. Like every natural wood it asks for regular maintenance.
Which board suits your deck depends on the exposure, the look you want and the upkeep you are willing to do. A lighter board runs cooler underfoot on a deck that takes full sun all afternoon; a darker board reads richer in shade. We walk through the choices with you at the estimate.
Railings come in Trex Signature, TimberTech, cable rail, aluminum picket and wood. Cable rail and aluminum picket keep a view open; a composite or wood railing matches the boards on a backyard deck. The baluster style varies by job and is chosen with the railing at the estimate.
Deck lighting is part of what Level Line builds: low-voltage post-cap lights, stair lights and rail lights, wired in as the deck is built so the fixtures sit where the posts and stair stringers can carry them. Lights on the stairs mark the step edges after dark, and lights along the rail keep the deck in use after sunset.
How we build a deck on Long Island
Footings
The footings are sized and set for the ground under the deck and, on a waterfront lot, for the flood elevation the layout has to meet. How deep they go varies by job and by the ground, and is settled at the estimate. They carry everything above them, so they are the part of the job nobody sees and the part that matters most.
Framing
The frame is sized for the deck it carries: the spans, the stairs, and the weight of anything built on it, from an outdoor kitchen to a hot tub. On a multi-level deck each level gets its own landing and a stair run with a comfortable rise, and the railings meet code.
Hurricane clips and salt-rated hardware
Every deck is tied down with hurricane clips and wind-uplift connectors, so the frame holds to its posts and to the house in a storm. Near the water every hanger, bracket, bolt and fastener is rated for salt exposure, because salt air works on metal from the day the deck is finished. The railing is picked for the view as much as for the code.
Permits and timing
Level Line prepares the drawings for the application, unless an architect is assigned to the job. You submit the application with what Level Line provides, Level Line arranges and attends the inspections, and Mark is available by phone throughout. It goes to whichever town your house is in, and how long approval takes varies by town and by inspector. Builds run from one day to two to four weeks, depending on size and scope.
Water is part of the design too: where the runoff under and around the deck goes, and whether the space below should stay dry, which is what a Rain Escape under-deck system is for. A deck can also meet a paver patio at the same level, set by the licensed masonry partner Level Line manages.
Our Process
A structured approach to perfection.
Consultation
A free estimate at the house: the yard, the house, what you have in mind.
Design
The layout, the boards and the railing, worked out with you on site.
Review
The plan checked against the lot, the code and the permit your town requires.
Refine
Changes made before anything is ordered.
Finalize
The permit filed with Level Line guiding you through it, then the build: one day to two to four weeks by size and scope.
Questions
Do I need a permit to build a deck on Long Island?
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Deck projects go through the permit process in your town or village. Level Line prepares the drawings for the application, unless an architect is assigned to the job. You submit the application with what Level Line provides, Level Line arranges and attends the inspections, and Mark is available by phone throughout. How long approval takes varies by town and by inspector.
How long does a deck build take?
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Builds run from one day to two to four weeks, depending on size and scope. A simple platform is at the short end; a multi-level deck with stairs, lighting and built-in features is at the long end.
Which decking should I choose?
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Composite and PVC boards from Trex, TimberTech, Azek and Fiberon resist rot, warping and fading without staining or sealing, which makes them the usual choice near the water and for anyone who does not want yearly upkeep. Cedar, pressure-treated lumber, mahogany and ipe are the choices for a homeowner who wants real wood and accepts the maintenance it asks for.
Can you work on the deck I already have?
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Yes. Level Line repairs existing decks, resurfaces them with new decking on the existing frame, refinishes the deck you have, and replaces a deck outright: a tear-out and a rebuild on a new frame. Whether the frame is worth keeping is settled at the estimate.
Licensed, insured and backed by the manufacturer
- Family-owned by Mark Villarico, building on Long Island since 1996, with more than 4,000 projects completed
- Listed with the Better Business Bureau
- Phone answered 24/7 at 516-220-3146
- Nassau County license 151422
- Suffolk County license HI-68891
- Liability and workers' compensation coverage
- Manufacturer-certified installer for Trex, TimberTech, Azek and Fiberon
The decking you choose is covered by its manufacturer's warranty. Level Line registers that warranty for you and handles any claim with the manufacturer on your behalf.
Financing is available through Service Finance Company. See the financing page.
Level Line decks across Long Island
Real Level Line projects, each captioned with the town it was built in.






What homeowners say about Level Line
Level line was Awesome!!! Mark and the guys were Top notch. They built my deck with total precision. Every Board was perfectly in line and all their cuts were flawless! The deck came out better than I can ever have imagined!! True craftsmanship!!
Henry · Smithtown, NY · Google review, August 2023


Highly recommend Mark from Level Line Home Improvements. We couldn't be happier with our deck. The whole crew was extremely professional and efficient. Every cut was completed with perfection It added a beautiful addition to our outdoor living space.
D Adames · Long Island, NY · Google review, July 2023


Related services
Questions we get asked about this
- Do I need a permit to build a deck on Long Island?
- What does a new deck cost, and what moves the price?
- How do I decide what kind of deck I want?
- Is composite decking worth it compared to wood?
- Should I repair my deck or replace it?
- Who builds a deck around an above ground pool?
- Why do deck boards crack and warp over a Long Island winter?
- How do I check a deck builder is licensed and insured on Long Island?
- How long does it take to build a deck?
