Norstar Windows & Doors is a leading Canadian Manufacturer and Installer of aluminum windows, doors, balcony railings, curtai ... n wall and entrance systems. We specialize in retro-fitting existing buildings and new construction in high & low rise multi-residential, corporate high rise, industrial, hotels and commercial plazas throughout Ontario, Manitoba and Quebec. At Norstar we are committed to deliver the best product, the best service and the best value. Our commitment to customer satisfaction and quality products are two of the reasons why we applied for and attained ISO 9001 certification. Our continued mission is to build on our history of product excellence and meet the unique needs and expectations of each client. read more