Turn A Window Into A French Door
Installing a french door between a living and dining space creates privacy without the loss of an open feeling for example.
Turn a window into a french door. These doors which are constructed with solid framing around a center of glass panes. Because you are almost certainly going to be increasing the width of the opening and very likely raising and lengthening the support header over the window as well you are going to to be above the cost in the referenced comments probably in the 2000. Dan faires explains why it s better to let a professional install french doors. You need to look at your current window and figure out how much of the window cutout you can use for your new bi fold french doors.
Converting standard doors to french doors allows light into rooms in a unique way. You will want to measure the height and width. Here is a recent response on cost to install a sliding glass door which is quite a bit easier than a french door but same general size.