Since 1924, Zero International has pioneered new and innovative ways to improve the standards of door and window sealing systems. The company has designs and manufactures hundreds of specialized components and integrated sealing systems featuring fire, smoke, acoustical, air filtration and shielding technologies. Its engineers are available to assist clients in design techniques, specification guidance and custom requests. Zero International was established in 1924 by two Hungarian immigrants who, starting out with nothing, named their new company Zero. In the decades that followed, the company has achieved a worldwide reputation as one of the leading manufacturers of door and window sealing systems. Based in Bronx, N.Y., the majority of Zero International s products are offered to the domestic marketplace through a network of sales agencies.