Canadian Door Doctor & Construction Co. Ltd. is proud to be a family owned and operated company located in Niagara Falls, Ontario. In 1979, Art Dommasch had the opportunity to install doors for a small local manufacturer.  The need for a local door sales and service company was suggested.  Taking a chance and with the support of his family, Canadian Door Doctor was born.  With modest beginnings, we began by establishing customer relationships and great supplier networks.  Over the years, with exceptional customer service and expanding product lines, Art found it necessary to move out of the small warehouse to our present location.  Once again we find ourselves bursting at the seams!

In 2000, a sister company, Niagara Door and Hardware was formed to expand our service to our customers. Products range from architectural hardware, steel doors and frames, washroom partitions and accessories, and access control systems. Call us for any specialty items you may be looking for.

The operation of opening and closing your doors is our business, helping you maintain that is our mission.