Building Strong Foundations Across New York City
Helping property owners with their projects, solving issues efficiently, and delivering dependable, high-quality construction service.
Complete below-grade treatment: wall preparation, sealing, perimeter drainage, and a sump system sized to the water volume the property actually produces.
Interior drainage, slab and cove-joint sealing, vapor barriers, and discharge for basements collecting perched water off bedrock.
Coating and membrane treatment for poured, block, and stone foundation walls, with reinforcement where hydrostatic and soil pressure have already caused movement.
Excavation to the footing, membrane installation, drainage board, and footing drain, more often achievable here than in the attached-housing boroughs.
Swales, French drains, retaining wall drainage, and regrading to intercept water uphill before it ever reaches the foundation.
Polyurethane and epoxy injection for active leaks, cold joints, and pipe penetrations.
Work Experience
In the Bronx, the fix depends entirely on where the water is coming from. A Riverdale basement with a wet uphill wall has a lateral drainage problem, and sealing the inside of that wall will not solve it. A Soundview property on marsh fill has a rising water table, and a French drain uphill does nothing. A multi-family building in Fordham may be pulling water through a deteriorated stone wall that needs repointing before any coating will bond. Same symptom, three different repairs.
Sky Grid Group NY traces the water to its source before recommending a system, and handles DOB filings, inspections, and excavation permitting where the scope requires it. Bronx homeowners, landlords, and property managers return to us because the diagnosis holds up.
We account for perched water, rock ledges, and site conditions before excavation begins.
We intercept water before it reaches the foundation and size drainage and sump systems to the property.
Get a clear scope based on actual site conditions, with no hidden fees.
Our experts lead every project with clarity, responsibility, and a deep understanding of complex site requirements.
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Project Coordinator
Concrete & Masonry Specialist
Site Operations Manager