Canada's Premier Window & Door Company Family-run since 1978, the company is widely regarded as one of Canada's premier manufacturers and installers of custom windows and doors. With more than 40 sales and installation offices throughout Ontario, and its head office and manufacturing facility located in Concord, Ontario, Clera Windows + Doors has improved more than 200,000 homes. The company has been recognized: Top Choice Award Canada's Best 50 Privately Managed Companies HomeStars - awarded best Window and Door Company by HomeStars in 2012 and 2013! City of Vaughan's Company of the Year Best of Houzz award recipient for 2014 We continue to be mindful of the values that helped us to earn these credentials: a true and total commitment to customer satisfaction. We are a Canadian company that has been manufacturing and installing Canadian-made products for nearly 40 years and our overriding goal is to make your renovation project a complete success.