Suffolk County · The Hamptons & East End
Masonry Contractors in Sag Harbor, NY
Retaining walls, stoops, stone veneer, brick and chimney work for Sag Harbor homes — built by our own crews since 1991, licensed # 58161-H since 1994.
Local expertise
Why Sag Harbor masonry has to be built right.
APM O'Neill & Sons works throughout Sag Harbor, NY, a Hamptons community in Suffolk County under Village of Sag Harbor jurisdiction. Our crews handle retaining walls, front stoops and steps, chimney rebuilds and repointing, stone and brick veneer, and full paver patios and driveways for Sag Harbor homeowners. We've been building across Suffolk County for 35 years out of our Medford yard, and every job is run by our own crew — no subcontracted finish work. Free on-site estimates, licensed under # 58161-H, and financing available on most projects.
Ocean air, sandy soils and long vacant off-seasons out east mean masonry has to handle salt, wind-driven rain and freeze-thaw with nobody watching it for months.
Shingle-style estates, farmhouses and modern builds with pool terraces, bluestone patios, stone walls and outdoor fireplaces. Natural stone is the standard here.
Pool coping, stone walls and outdoor fireplaces near the water need sealed joints and drainage built in from the start. We plan every East End job around the off-season.
Sag Harbor falls under Village of Sag Harbor permitting. Suffolk County frost depth is 42 inches, so every footing we pour reaches below that line. We evaluate grade, soil drainage, and runoff on-site before quoting, and detail drainage where the yard holds water in spring.
Services in Sag Harbor
Full-service masonry — locally.
Retaining Walls in Sag Harbor
Engineered segmental and natural stone walls with real drainage behind them.
Stoops & Steps in Sag Harbor
Footings below frost line, reinforced cores, stone, brick or paver treads.
Stone Veneer in Sag Harbor
Natural and manufactured stone facades, columns and foundation walls.
Brick & Block in Sag Harbor
Brick walkways, piers, planters and block construction done by hand.
Chimney & Repair in Sag Harbor
Rebuilds, repointing and crown repairs that stop water getting in.
Fire Pits & Fireplaces in Sag Harbor
Masonry fire features and seat walls built to last outdoors.
Our masonry work
What we build for Sag Harbor homeowners.
Larger East End properties and natural-stone scopes are quoted individually, and we schedule around the summer season so the yard is ready on time.
FAQ
Masonry in Sag Harbor: common questions.
How much does masonry work cost in Sag Harbor, NY?
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It depends on scope and material. A small stoop repair can be a few thousand dollars, while a full stoop rebuild, stone veneer facade or engineered retaining wall costs more. Larger East End properties and natural-stone scopes are quoted individually, and we schedule around the summer season so the yard is ready on time. Every Sag Harbor estimate is free, on-site and itemized.
Do I need a permit for a stoop or retaining wall in Sag Harbor?
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Sag Harbor falls under Village of Sag Harbor. Many stoop rebuilds and taller retaining walls need a permit there. We check the rules for your address and pull any permits ourselves so you don't have to.
What masonry problems are common in Sag Harbor?
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Ocean air, sandy soils and long vacant off-seasons out east mean masonry has to handle salt, wind-driven rain and freeze-thaw with nobody watching it for months. Pool coping, stone walls and outdoor fireplaces near the water need sealed joints and drainage built in from the start. We plan every East End job around the off-season.
Are you licensed and insured for masonry in Sag Harbor?
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Yes. APM O'Neill & Sons is licensed in Suffolk County (License # 58161-H), fully insured, and has been building masonry on Long Island since 1991 with our own crews — no subcontractors.
Which towns near Sag Harbor do you also serve?
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We work all over Suffolk County, including Water Mill, Bridgehampton, Sagaponack, Noyack. Our yard is in Medford, so most addresses are an easy drive for estimates and site visits.
Get a free masonry estimate in Sag Harbor.
Build now.
Pay monthly.
Flexible monthly payment plans for patios, driveways, and outdoor living projects across Suffolk County. Licensed & insured. Free estimates.
Financing provided by Hearth. 60-120 month terms. Subject to credit approval. Rates and terms vary by lender.