One glazing subcontractor for the whole building: windows, storefront, curtain wall, entrance doors, glass railings and panels on new construction and gut renovations across Brooklyn, with shop drawings, fabrication at our shop and installation by our own crews.
In short: Alex Glass Construction is a glazing contractor for builders and developers in Brooklyn. We take the window and glass scope of a new building as one package: take-off from the architect’s set, shop drawings, fabrication of the aluminum at our shop, and installation by our own crews, from the ground-floor storefront to the roof railings. Six-story rentals, condos, mixed-use corners and townhouse rebuilds across Brooklyn. Call 929-235-1233 or request a free quote.
On a new building in Brooklyn the glass scope is usually split between a window dealer, a storefront company, a railing installer and a panel sub, each with its own drawings, lead time and excuses. We take the whole scope: windows, storefront, curtain wall, entrance doors, glass railings and aluminum composite panels, drawn as one set and installed by one crew. The sizes are taken once, the sequence is planned with the framer and the mason, and a leak has one phone number.
The six-story building at 408 Lefferts Avenue is that package: every window, the corner storefront and the entrance, from drawings to the last bead of sealant. What a glazing contractor does on new construction explains the role; window subcontractor in NYC covers how we work under a GC.
All of Brooklyn. By area:
North and West Brooklyn: Williamsburg, Greenpoint, Bushwick, Bedford-Stuyvesant, Clinton Hill, Fort Greene, Downtown Brooklyn, Brooklyn Heights, Dumbo, Red Hook, Gowanus, Park Slope, Carroll Gardens.
Central Brooklyn: Crown Heights, Prospect Lefferts Gardens, Flatbush, East Flatbush, Prospect Heights, Sunset Park, Bay Ridge, Dyker Heights, Borough Park, Kensington, Windsor Terrace.
South Brooklyn: Midwood, Sheepshead Bay, Manhattan Beach, Brighton Beach, Gravesend, Bensonhurst, Flatlands, Marine Park, Mill Basin, Canarsie, East New York, Brownsville, Coney Island, Sea Gate.
For volume pricing see wholesale windows for contractors and bulk window orders for builders.
More projects are added to the portfolio as they finish.
Alex Glass Construction takes the window and glass scope of new buildings in Brooklyn as one package: windows, storefront, curtain wall, entrances, glass railings and panels, from shop drawings to installation by our own crews. Call 929-235-1233 or send the drawings for a bid.
Yes. Most of our new-construction work in Brooklyn is under a GC or directly for the developer: we bid from the set, submit shop drawings, fabricate, deliver and install, and coordinate with the framer, mason and facade trades.
Townhouse rebuilds up to mid-rise rentals and condos; 408 Lefferts Avenue is a six-story building with every window, the corner storefront and the entrance by us. Larger buildings are quoted on the drawings.
Yes. Every opening is drawn, with the system sections, glass make-up and the energy and performance data the architect and the DOB filing need, and nothing is fabricated until the drawings are approved.
Yes. Supply to the window schedule with shop drawings, delivery to the floor and a site start for your crew; see our wholesale and bulk order pages.
Order from approved shop drawings as soon as the openings are framed or the masonry is set, three to twelve weeks before you need them depending on the line; imported European systems take the longest. Our guide to when to order windows for new construction has the schedule.
Yes, and that is the point: one contractor, one set of drawings and one crew for the windows, the ground-floor storefront, the entrance and the balcony and roof railings.
Yes. 2535 Frederick Douglass Boulevard in Harlem, 10-64 Jackson Avenue in Long Island City and the Elston at Woodycrest Avenue in the Bronx were complete packages on new buildings.
Brooklyn: Windows, Doors & Glass Window Replacement in Brooklyn Glazing Contractor for New Construction Window Subcontractor NYC Wholesale Windows for Contractors Commercial Windows for New Construction Curtain Wall Glass Railings
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 the drawings and the window schedule. We will do the take-off and bid the glazing scope as one package, with shop drawings and installation by our own crews.
