first class(noun) the highest rank in a classification. first class, 1st class, first-class mail, 1st-class mail(noun) mail that includes letters and postcards and packages sealed against inspection. first class(adj) the most expensive accommodations on a ship or train or plane.
A very basic sliding glass door, without professional installation, can cost $300 to $500, and this is the type of door most people think of when they hear the term sliding glass door â a six-foot pair of plain glass panels inside a simple frame. An eight-foot door can run $800 to $1,200 without professional installation.
Cost to Replace a Sliding Patio Door. Cost to Replace a Sliding Patio Door. A contractor charges $1,147 to replace a sliding patio door but you can do it yourself for $745 and save 35 percent. To adjust the home improvement and repair cost, enter your ZIP Code. Video.