For over 85 years, The Bilco Company has been a building industry pioneer in the design of specialty access products. Over these years, the company has built a reputation among architects, specifiers, and contractors for products that are unequaled in design and workmanship. Bilco – an ISO 9001 certified company – manufactures roof hatches, automatic fire vents, floor access doors, and a complete line of residential products designed to improve the look and function of basement areas. With headquarters in West Haven, Connecticut, Bilco has manufacturing facilities in Trumann, Arkansas, and Zanesville, Ohio, and an international network of sales offices, dealers, and representatives.