Our Work
Real Projects · Real Results
Foundation waterproofing, concrete, masonry and sidewalk work across NYC and Long Island.
Sidewalk · Concrete · Masonry · Foundation · Waterproofing
From DOT violation removal to foundation waterproofing — A1 Building Restoration delivers licensed, insured, guaranteed craftsmanship across all 5 NYC boroughs and Long Island since 2010.
Same-day response · No obligation · 100% free
Foundation waterproofing, concrete, masonry and sidewalk work across NYC and Long Island.
8 specialized services — all permits handled, all boroughs covered, all work guaranteed.
Full sidewalk slab replacement, crack repair, and DOT-compliant concrete work across all NYC boroughs.
Learn More →Complete DOT sidewalk violation process — repair, permit filing, and official dismissal. Guaranteed.
Learn More →Slabs, patios, garage floors, curb cuts, aprons, and all concrete for residential and commercial.
Learn More →Custom concrete steps, brownstone stoops, bluestone, and entry stairs built to NYC DOB code.
Learn More →New driveways, replacements, DOT curb cut permits, decorative and exposed aggregate finishes.
Learn More →Brick repointing, facade restoration, brownstone work, stonework, chimney repair across all NYC boroughs.
Learn More →Excavation, concrete pours, retaining walls, crack repair, French drains, and sump pump installation.
Learn More →Interior and exterior basement waterproofing, membrane application, drainage, and flat roof repair.
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NYC's freeze-thaw climate, high water table, and aging infrastructure create serious foundation water problems. A1 Building Restoration provides full interior and exterior waterproofing solutions that stop water at the source.
We manage every DOT and DOB permit, filing, and inspection so you never have to deal with city bureaucracy.
NYC licensed general contractor with full liability and workers' compensation insurance on every project.
We respond the same day and come to your property to provide a detailed written quote at no charge.
Clear itemized quotes with no hidden fees and no change order surprises. You know exactly what you pay.
We guarantee every project we complete. If anything is not right we make it right — no questions asked.
25 verified 5-star Google reviews from satisfied homeowners and property managers across NYC.
25 verified 5-star reviews from real customers across all NYC boroughs and Long Island.
We visit your property, review the scope, and provide a detailed written estimate at no charge.
We handle all DOT, DOB, and municipality filings and approvals before work begins.
Licensed crew with professional equipment and premium materials — on time, on schedule.
We walk through every detail, handle final inspections, and don't leave until you're 100% satisfied.
Click your ZIP code for local service info and a free estimate.
Call us or fill out the form — we respond same day and come to your property for a free, detailed estimate. Serving all of NYC, Long Island, and the Tri-State Area.