Vinyl windows
Any window that is made after the specification of a costumer can be considered a custom window. These windows can be from vinyl replacement windows to pre-finished wood windows.
One type of custom window is the replacement window, constructed using the measurements of an existing window.
Other windows like wooden ones are commonly used when constructing a new house. They come in various shapes and sizes and are most cost efficient if installed during the house construction.
Windows with leaded glass patterns are also a type of custom windows. Coming in various patterns and shades, these standard windows can be ordered to fit exactly your design preferences.
Most of the time, custom windows are expensive due to the hard labor involved in their making, but will always be an attractive addition to your home.