GPW glass replacement in Toronto and the GTA
GPW commonly means Georgian Polished Wire glass, also called Georgian polished wired glass. It has a visible square wire mesh and is used in some commercial doors, service-room openings, corridors and fixed steel frames. DoorWin identifies the existing glazing and surrounding assembly before recommending replacement.
Replacing broken GPW glass in an existing opening
When the wired panel is cracked or shattered but the lite frame, stops and surrounding door or steel frame remain usable, the job can stay focused on the glass. The failed panel is removed, the opening is cleaned and a compatible replacement is installed.
Adding a new GPW vision lite to a steel door
Some compatible steel doors can be prepared for a new vision opening. The door is measured and cut for the correct lite kit, then the matched GPW glass is installed. This is different from replacing a panel that is already present.
GPW glass in fire-rated doors and fixed steel-frame windows
Common applications include listed fire-door vision panels, service-room and electrical-room openings, stairwell or corridor doors, sidelites and fixed steel-frame windows. The correct product, lite kit, size and surrounding assembly must be confirmed before work proceeds.
Important rated-opening limitation
Not every steel door can be field-modified. For fire-rated openings, vision-panel glazing must follow the door listing, labeled light-kit requirements and manufacturer instructions. Cutting a non-rated door does not make it fire-rated. If the slab, frame, closer, hinges or labels also need work, see our fire-rated door service or hollow metal and steel door service.