Alex Glass Construction is based on Staten Island: the shop where our aluminum is fabricated and the showroom with window, door, railing, glass and mirror samples are at 7 Beach Street in St. George. We replace windows, install doors, storefronts, glass railings, showers and mirrors, and cut glass to size for every neighborhood from Tottenville to St. George.
In short: Alex Glass Construction is the glazing contractor based on Staten Island: window replacement and new windows in aluminum, uPVC, clad-wood and steel; sliding, bifold and entrance doors; storefronts; glass balcony, deck and stair railings; frameless showers, mirrors and glass cut to size, all from the shop and showroom at 7 Beach Street, St. George. Survey and quote are free, pick-up of glass and mirror is available at the shop, and the showroom is open by appointment Monday to Friday 8 to 5. Call 929-235-1233. Call 929-235-1233 or request a free quote.
Everything we install anywhere in the city starts at 7 Beach Street in St. George: the aluminum for windows, doors, storefronts and curtain wall is cut and assembled here, glass and mirror are stocked and cut to size here, and the showroom holds the samples. For Staten Island that means a shorter path than any other contractor offers: survey this week, a visit to the showroom to see the sample, fabrication in the building next door, and installation by crews who live on the island. 217 Main Street in Tottenville is a black Kleidco storefront door with a vestibule and ladder pulls at the far end of the island; the shop is at the near end.
Staten Island work is houses first: window replacement on the colonials and ranches of the South Shore and Mid-Island, new windows and sliding or bifold doors on the custom houses of Todt Hill and Grymes Hill, glass railings on decks and the waterfront, showers and mirrors in every renovation. Then the commercial corridors, Hylan Boulevard, Richmond Avenue, Forest Avenue, Bay Street and Victory Boulevard, where the work is storefronts, entrances, automatic doors and replacement glass. And the North Shore is changing: St. George, Tompkinsville and Stapleton are putting up new apartment buildings, and those are window packages and curtain wall, as on our Staten Island supplier page.
North Shore: St. George, Tompkinsville, Stapleton, Clifton, Rosebank, Grymes Hill, Silver Lake, West Brighton, Port Richmond, Mariners Harbor, Westerleigh, Castleton Corners.
Mid-Island and East Shore: Todt Hill, Dongan Hills, Grant City, New Dorp, Oakwood, Midland Beach, South Beach, Bulls Head, New Springville, Willowbrook, Travis.
South Shore: Great Kills, Eltingville, Annadale, Huguenot, Prince's Bay, Pleasant Plains, Tottenville, Rossville, Woodrow, Charleston.
Like-for-like window replacement in a house does not need a Department of Buildings permit; a change to an opening, a new storefront, a deck railing or any structural work does, and files through the architect of record with our shop drawings and product data. The St. George and Stapleton Heights historic districts, the Hamilton Park district and the Tottenville and Snug Harbor landmarks bring the Landmarks Preservation Commission into street-facing windows, which we check and file. On the East Shore and South Shore waterfront, Midland Beach, South Beach, Great Kills and Tottenville, the flood zone and the wind exposure set the specification: laminated or impact-rated glass where required, marine-grade finishes and stainless hardware.
Each of these pages goes deeper on one product or one kind of client in the area:
More projects are added to the portfolio as they finish.
We supply and install windows, doors, storefronts, curtain wall, glass railings, shower enclosures, mirrors and facade panels on Staten Island, for homeowners, co-op and condo boards, property managers, general contractors and developers. We survey, quote per opening, prepare drawings and filings, fabricate aluminum at our Staten Island shop, and install with our own crews. Call 929-235-1233.
It depends on the number and size of openings, the material and line (uPVC, aluminum, clad-wood, steel), the glass, and the installation conditions: scaffolding, a landmark filing or a co-op package all add. We quote per opening with everything named, and the survey and quote are free.
Yes. Like-for-like replacement in a house needs no permit; opening changes, storefronts and railings file through the architect with our drawings; and we check the St. George, Stapleton Heights and Hamilton Park historic districts and file with the Landmarks Preservation Commission where a street-facing window falls inside one.
Stocked and fabricated lines run three to twelve weeks from the approved drawings; imported European systems and factory-direct container orders three to four months. Installation on a house or an apartment runs one to a few days; a whole building is scheduled floor by floor.
Yes. About half of our work on Staten Island is under a general contractor or directly for a developer: take-off from the drawings, shop drawings, supply or supply-and-install. See window supplier on Staten Island for the area.
Yes, by appointment at 7 Beach Street, St. George, Staten Island, Monday to Friday 8 to 5 and weekends subject to availability, with window, door, railing, glass and mirror samples; we also bring samples to the site.
7 Beach Street, St. George, Staten Island, NY 10304, a short walk from the ferry terminal and the St. George station. By appointment, Monday to Friday 8 to 5 and weekends subject to availability; call 929-235-1233.
Yes. Cut-to-size glass, mirror, insulated units and shower glass can be ordered for pick-up at 7 Beach Street, usually within a few days.
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About this page. Written by Alex GC Inc. d/b/a Alex Glass Construction and reviewed before publication by Aleksandr Chernovolenko, Managing Partner, with our design and estimating lead and a field foreman. Our foremen hold the NYC DOB Site Safety Training supervisor card and our crews the 40-hour worker card; we are certified to fabricate, install and service Alutech and Everest aluminum systems. Facts are drawn from our own projects, manufacturer test data and the applicable codes; where we are giving an opinion, we say so. Last reviewed September 2026. Credentials
Send photos of the openings, the building address and what you want to change, or the architect’s drawings. We will survey, quote per opening and tell you what approvals apply.
