Keystone Contracting Corp is a trusted NYC construction company and team of general contractors based in the Bronx, proudly serving all five boroughs. With decades of experience, we provide high-quality construction, renovation, and building services for both residential and commercial clients. Our expertise spans roofing, waterproofing, sidewalks, building restoration, masonry, and scaffolding. Whether you need a dependable roofing contractor, professional waterproofing, precise sidewalk repairs, expert masonry, safe scaffolding, or comprehensive building restoration, our team delivers durable workmanship and exceptional customer service. We’re proud to be a go-to construction company for clients in the Bronx, Manhattan, Brooklyn, Queens, Staten Island, and beyond.