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Island Driveways & Patios, Inc

Paving and Hardscaping in Port Jefferson, NY

Call us now at (631) 245-9273 – we're ready to bring your patio and paver vision to life!

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Driveways, retaining walls, patios, steps and masonry across Port Jefferson village and the hills above the harbour.

Patio & Paver Installation in Port Jefferson, NY
Patio & Paver Installation in Port Jefferson, NY
Expert Patio & Paver Installation in Sayville, NY
Expert Patio & Paver Installation in Sayville, NY

The ground under Port Jefferson

Port Jefferson is built on hills. The village’s neighbourhoods are literally defined by them: Harbor Hills in the north-east corner, Brick Hill west of the downtown waterfront, Cedar Hill above the railroad station. It’s north-shore moraine country: glacial till, dense, unsorted, and much less free-draining than the outwash sand south of the ridge.

Two consequences, and between them they explain most of the work we do here.

Grade. More Port Jefferson properties need a retaining wall than in any other town we cover. Sloping sites mean driveways cut into a bank, patios that need a level platform building before they can exist, and steps connecting levels that a flat lot wouldn’t have. It’s also why hardscaping here is rarely a single-element job: the wall, the steps and the surface all have to resolve into one grade.

Water. On a slope, water moves, and moraine till doesn’t absorb it the way sand does. So runoff is a live design question rather than a formality: where does it go, and what’s downhill of it? Getting this wrong on a Port Jefferson property doesn’t just damage your own driveway, it sends water into whatever sits below you.

And a piece of village history that’s still relevant: the harbourfront flooded at high tide until a causeway was built in 1836. The low ground by the water was marsh, and made ground near a former marsh behaves differently from the till on the hill above it. Worth knowing which you’re on.

Retaining walls in Port Jefferson →

Retaining walls hold water, not soil

Since this is the retaining wall town, the thing worth saying plainly:

Dry soil is heavy. Saturated soil is much heavier and pushes sideways far harder. That sideways push, hydrostatic pressure, is what knocks walls over, and on north-shore till it builds up because the water can’t drain away through the ground.

So the parts that matter are the ones you can’t see afterwards: free-draining backfill directly behind the blocks, a drain at the base with somewhere real to daylight, geotextile keeping soil out of the drainage stone, and a buried base course on a compacted pad.

A wall built without those stands beautifully for two or three years and then leans. Once it leans it comes down and goes back up. There is no adjusting it.

Call us now at (631) 245-9273 – we're ready to bring your patio and paver vision to life!

Retaining walls on a hillside

Retaining walls are the thing to watch here, because above a certain height a wall stops being landscaping and becomes a structure requiring engineered design. On a hillside town, that threshold gets reached far more often than elsewhere.

What we’ll do: measure the retained height at the estimate and tell you whether you’re in engineered territory. A contractor who quotes a tall wall on a Port Jefferson hillside without mentioning engineering is not planning to build it properly.

Getting to you

We cover all of Suffolk County, and Port Jefferson is regular work for us. Call (631) 245-9273 or book a free on-site estimate.

Why us, here

We build the drainage before the face, we tell you when a wall needs an engineer, and we treat hillside runoff as a design problem rather than someone else’s.

ICPI certified, Techo-Bloc Pro, A+ with the BBB.

Frequently asked questions

My retaining wall is leaning. Can it be straightened?
No. A leaning wall has already failed: almost always because water built up behind it with nowhere to go. It comes down and goes back up with the drainage it should have had.

Can you build a level patio on a sloping yard?
Yes. That’s usually a wall and a platform rather than a patio job, and it’s worth designing both together. Terracing into two shorter walls is often better than one tall one, and it can keep you under the engineering threshold.

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What People Think About Our Service in Port Jefferson, NY

“We shopped around for a price and chose Island. They weren’t the cheapest but were very reasonable. John was excellent in explaining all the work and materials to me. The end result came out beautifully and done in a timely manner. Glad I chose Island and would highly recommend them. “
- Louis Sico

“John and his guys did an amazing job at my house they did my stoop added 6ft walkway and 6 ft apron and cobblestone along side driveway and blacktop driveway and brick work we highly recommend them they truly bring your vision to reality”

- Dorothy Scotti
“John and his team were amazing! It started out with a driveway, and I was lamenting the fact I was going to need to replace my clear cedar deck, a John suggested a floating patio… I think it’s the best addition I could have chosen, is beautiful and durable and I LOVE it! He also replaced a brick walkway, everything just looks beautiful! Thanks guys! “
- Jo Meyer