Upgrading the glass in your sliding patio door can add to the cost just as it would to a replacement window, but it brings some impressive perks. Enhanced features such as weatherstripping ...
Look at the top of the door. Some have wheels at the top as well as the bottom. The top wheels aren’t likely to be worn, but ...
The glass is covered by a 20-year limited warranty. French patio doors attach to either side of the door frame with hinges.