Zeluck manufactures a variety of windows and doors for its customers. The company offers fixed and awning windows in several configurations. It has hopper, casement, and tilt and turn windows available in various specifications. Zeluck provides windows in a range of shapes, including circle, oval and eyebrow. The company also sells triple- and double-hung windows. It features entry, french and folding doors. Additionally, Zeluck offers inspection, design and delivery services. The company is located in Brooklyn, N.Y.