Family-run since 1978, Clera Windows + Doors is one of Canada’s premier manufacturers and installers of custom windows and doors. With more than 40 sales and installation offices throughout Ontario, a head office and manufacturing facility located in Concord, Ontario, Clera Windows + Doors has improved more than 250,000 homes. We understand the challenges facing Canadian home owners when it comes to their windows and doors. They need to be able to withstand the harsh Canadian winter whilst also standing up to hot summers. That's why we personally design every window and door we sell, and manufacture them right here in Ontario. Our expert installation team then ensures they are installed right the first time every time. Contact us today! Contact person: Hans Vanderspank