Window City is the largest vinyl window and door manufacturer in Canada, boasting an over 400,000 sq.ft facility. Our warranties are bested by none. By offering custom made, energy efficient, vinyl windows (Casement window, Awning window, hung window, sliding window, bay window and bow window) for any home, we are able to meet your needs without sacrificing quality of product. Let's work together to make your house, your dream home.