This window is fitted on the inside of the original window which you may want to preserve.

This may be because of the style of the building or it lies in a conservation area.

Secondary glazing windows are available in a large variety of styles and colours.

Doors are also available.

There are many fitting options and as standard it is fitted with silver Pinol hinges

and accompanying twist but as you can see in the picture brass hardware

is also an option.... The choice is yours.