Building Strong Foundations Across New York City
Helping property owners with their projects, solving issues efficiently, and delivering dependable, high-quality construction service.
Years Experience
Projects Completed
& Insured
Star Rated
Work Experience
Working in Manhattan is a different job from working anywhere else in the city. There is no staging area, no parking, and no forgiving neighbor. A sidewalk in Tribeca is often a vault slab with occupied cellar space directly underneath, so it can't simply be broken out and repoured. A townhouse in Greenwich Village or Hamilton Heights sits in a landmark district where mortar, brick, and stone are all subject to review.
Sky Grid Group NY works inside DOT regulations, DOB requirements, and Local Law 11 repair codes on every project. We are a concrete and masonry company first, not a general contractor who dabbles in it, and that is why Manhattan co-op boards, managing agents, and commercial building owners keep calling us back.
Cracked flags, settled slabs, trip hazards, and violation-flagged walks repaired or replaced to full DOT compliance. On a borough this dense, the harder part is usually the conditions around the work: pedestrian protection, restricted hours, and, on a vaulted sidewalk, knowing what's under the slab before anything gets cut.
Curb cuts are rare in Manhattan, but the driveways, ramps, and garage aprons that exist take constant traffic and fail fast. We rebuild them with the base and drainage detailed properly so the surface doesn't come apart again in a season or two.
Brownstone stoops, entry stairs, and service steps repaired or rebuilt to code. On landmarked blocks we match the existing profile, riser height, and stone so the finished work belongs to the building rather than reading as a patch.
Curbs damaged by trucks, plow blades, and freeze-thaw cycles are cut out and reset to DOT specification, restoring a clean edge and keeping water moving to the drain instead of pooling against the building line.
Manhattan facades take weather from every direction and rarely get looked at until something falls. Our masons repoint and rebuild failing mortar joints on brownstones, prewar apartment houses, and commercial buildings, matching mortar color and joint profile to the original so the wall doesn't end up banded.
Water intrusion is the most damaging problem in almost any NYC building, and cellars here are usually occupied space, storage, mechanicals, and retail back-of-house. We waterproof foundations, cellar walls, and exterior elevations to keep moisture out of areas the building can't afford to lose.
Cracked, delaminating, or water-damaged stucco repaired and refinished on rear elevations, courtyards, and light wells across the borough, where decades of trapped moisture have usually done more damage than what shows from the street.
Foundation crack repair, waterproofing, and structural reinforcement for residential and commercial buildings, including older Manhattan stock where adjacent construction, vibration, and long-term settlement have opened joints that need real reinforcement.
Corroded steel lintels are one of the most frequently cited conditions in FISP facade reports. We repair and replace steel and masonry lintels to stop water from getting in behind the brick and pushing the wall apart, the fix that keeps an unsafe condition from becoming a full facade rebuild.
Permits, inspections, and code requirements are where most concrete and masonry projects in this city lose weeks, and in Manhattan you can add sidewalk closures, protected walkways, and restricted work windows to the list. We handle all of it in-house as a DOT-compliant contractor, so your job moves instead of sitting in a queue.
We are a licensed Manhattan contractor and work the same way in Brooklyn, Queens, and the Bronx. Crews are fully licensed and insured whether the address is a townhouse in Harlem or an office building in Midtown, and we carry the coverage managing agents and boards actually ask for.
Among masonry contractors in Manhattan, NY, plenty will quote whatever is in front of them. We specialize in concrete and masonry, and that focus is what lets us read a building correctly on the first visit: what is settlement, what is water, and what will fail next if nobody touches it.
Our experts lead every project with clarity, responsibility, and a deep understanding of complex site requirements.
All Member All Member
Project Coordinator
Concrete & Masonry Specialist
Site Operations Manager
