Centennial Windows & Doors is a family owned and operated business that offers an end-to-end solution for replacement windows ... and doors. We sell, manufacture, install, and service our own complete line of award winning, energy efficient windows and doors. Founded in 1981 and based in London Ontario, Centennial is best known for quality, integrity, innovation, and energy efficiency. Our mission is to provide every customer and employee an experience with Centennial that will exceed their highest expectations. With 200 dedicated employees and 50,000 customers, Centennial is a name you can trust for quality products and services. read more