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Windows & Doors · Storefronts & Railings · Showers & Mirrors · Waterproofing
Years Experience
Contractors & Partners
Projects Completed
All 5 Boroughs
We supply and install, so one company owns the whole opening — specifying the product, fabricating it, fitting it, and waterproofing the perimeter it sits in. Over 20 brand lines across the full range, from high-end European systems to cost-effective American and locally made products, so the specification gets built around your budget rather than the other way round.
Residential and commercial window and door systems, supplied and installed.
Commercial frontages and architectural glass assemblies.
Enclosures, panels and mirror work for wet areas and interiors.
Insulated units, safety glass, coatings and decorative finishes.
Expert installation by licensed contractors with 20+ years of experience. We ensure proper fitting, weatherproofing, and building code compliance.
Complete waterproofing solutions using premium materials (Henry Blue Skin, Soprema). Flashing, sealing, and drainage expertise.
Custom fabrication services with 1-2 week turnaround. Tailored solutions for unique project requirements.
Full opening specialist for commercial projects. Curtain walls, storefronts, and large-scale installations.
Trade supply for contractors, builders and fabricators. We source and supply windows, doors, glass and hardware from our European, American and commercial brand lines.
Ongoing service for property managers, building owners and management companies. Maintenance, repair and replacement across your portfolio.
Loading projectsβ¦
"Exceptional quality and professionalism. Alex GC transformed our home with beautiful new windows."
"The installation was seamless. Great communication and attention to detail throughout the project."
"Professional team, competitive pricing, and outstanding results. Highly recommended!"
"20+ years of experience really shows. They know exactly what they're doing."
"Custom glass solution worked perfectly. Great craftsmanship and warranty support."
"Waterproofing is flawless. No leaks or issues even after heavy rain. Very impressed."
Learn about the latest low-E glass technology that can reduce your heating and cooling costs by up to 30%. Perfect for NYC winters and summers.
Complete guide to protecting your openings. Professional techniques for flashing, sealing, and drainage to prevent water damage.
Discover our custom fabrication capabilities. From unique shapes to specialty finishes, we create solutions for every project.
Explore our commercial offerings including curtain walls, storefronts, and large-scale installations for businesses.
We supply and install across all five New York City boroughs, from single openings to whole-building programmes. Our own base is on Staten Island, and a large share of our work is in Brooklyn, Queens and Manhattan — brownstones and rowhouses, co-op and condo buildings, storefronts and commercial facades.
Beyond the five boroughs we work across Northern New Jersey — Hoboken, Jersey City, Bayonne, Union City, Weehawken, North Bergen, Fort Lee, Englewood, Hackensack, Newark, Elizabeth, Bloomfield and Montclair — the Jersey Shore, Philadelphia and the Lehigh Valley in Pennsylvania, including Allentown, Bethlehem and Easton.
Not listed? Call 929-235-1233 — if we cover the area we will tell you, and if we do not we will say so rather than waste your time.
Get a custom quote for your project today. Free consultation, competitive pricing, professional installation.