Edan Sher

Edan Sher is the owner of Delco Windows and Doors, a manufacturer and installer of windows and doors in Concord, Ontario. The company has manufactured and installed across the Greater Toronto Area since 1989.

Where Patio Door Installations Fail in Freeze-Thaw Climates

Manufacturers see the warranty claims. Installers see the callbacks. The two rarely connect, and the gap between them is where most cold-climate patio door failures actually start.