Masonry & Hardscape in Ossining, NY
Built for Hudson Valley hillsides.
Retaining walls, stone patios, pavers, walkways, steps, and drainage for Ossining homeowners — from a licensed, owner-operated contractor about 15 minutes up the road.
A neighbor, not a crew from across the county
Leo’s Construction & Excavation Corp. is based in Buchanan — about 15 minutes up Route 9 from Ossining. That means we can usually come out quickly to walk your property, and Nestor, the owner, is on site for the work itself.
Ossining climbs steeply up from the Hudson River, and many homes in the Village, Crotonville, and the hills toward Briarcliff Manor are built on sloped lots. Sloped yards are where stonework fails most often: walls lean, patios settle, and water runs toward the house. We build every project with that in mind — solid base, proper backfill, and drainage that sends water away from your foundation.
Whether you want a new patio for the backyard, a safer set of entry steps, or a retaining wall to finally level out a hillside, we’ll give you a straight answer and a fair price.
Why Ossining homeowners choose Leo’s
- ✓Local and fast: We are in Buchanan, just up Route 9, so we show up when we say we will.
- ✓Owner on site: Nestor, the owner, is on the job himself — not just at the estimate.
- ✓Built for slopes: Proper excavation, compacted base and drainage, so walls and patios stay put.
- ✓Clear written estimates: You know the scope, the price and the timeline before we start.
- ✓Licensed and insured: Your home and your investment are protected.
Our simple process
Cambridge Block Retaining Wall in Ossining, NY
This Ossining home sits on a steep slope right above the street. The homeowner needed a strong wall to hold the hillside and turn the slope into usable, level yard. We built a curved retaining wall with Cambridge wall blocks, following Cambridge’s installation guidelines from the base to the caps.
Before & excavation
We dug out the hillside, hauled away the extra soil, and prepared a solid, compacted base — the part you never see, but the reason a wall stays straight for years.
Building the wall
Course by course, the curved Cambridge wall goes up level and tight, with drainage stone and compacted backfill behind it so water drains instead of pushing on the wall.
Finished
A clean, curved Cambridge block retaining wall with the yard graded behind it — built to hold the hill through New York winters.
Watch the crew at work
Short video from this Ossining job.
What we build in Ossining
Retaining Walls
Natural stone and block walls for sloped yards, built with a proper base, drainage stone, and backfill so they don’t lean or bulge.
Patios & Pavers
Stone patios, interlocking pavers, and stamped concrete that stay level through New York freeze-thaw winters.
Walkways & Steps
Front walks and stone entry steps that are safe, even, and pitched so water doesn’t pool or ice over.
Drainage Solutions
Fixing wet yards, pooling water, and runoff toward the house — at the source, not just the surface.
Foundations & Slabs
Concrete foundations and slabs for additions, sheds, and garages.
Repairs & Repointing
Cracked concrete, loose pavers, and stone foundations on older homes that need repointing.
Ossining FAQ
Do you work in all of Ossining?
Yes — the Village of Ossining, the Town of Ossining (including Crotonville), and nearby Croton-on-Hudson, Briarcliff Manor, Pleasantville, Cortlandt Manor, and Buchanan.
How quickly can you come out for an estimate?
We’re based in Buchanan, about 15 minutes away. Call or text 914-330-3941 and Nestor will set up a time to walk the project. In most cases you get a fair price the same day. Estimates are free.
Can you build on a steep or sloped yard?
Yes. Sloped properties are a big part of our work — for example, the natural stone retaining wall, tiered patio, and steps we built on a steep yard in Highland Falls (see the before & after on our home page).
Will my project need a permit?
Some projects, such as taller retaining walls, may need approval from the Village or Town of Ossining. We’ll let you know during the estimate if your project might need one.
Are you licensed and insured?
Yes. Leo’s Construction & Excavation Corp. is fully licensed and insured in New York State, and we guarantee our installation work.
Nearby areas we also serve
Ready to start your project?
Call or text us. Nestor comes out, walks the project, and gives you a fair price — same day in most cases.
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