Diamond Sea Glaze designs and manufactures custom windows, doors, and hatches for customers around the world. DSG delivers what our customers demand: sleek, strong and secure closures. DSG closures have quality built in – so everything else stays out. Each order is manufactured separately from beginning to end in our 80,000 sq. ft. vertically integrated plant just outside Vancouver, Canada. We are one of a few closure manufacturers in the world that insists on processing it’s own glass so we can
Whiting, the original manufacturer of roll-up doors for the transportation industry, began operations in 1953. Since that time, we have concentrated on designing doors that are easy to install, operate and maintain.