We are Modern Windows, manufacturers and suppliers offer our customers the best and stylish, innovative and high quality UPVC doors and UPVC windows. Fixed windows are the best choice where you need a good outside view and do not have to open. These windows are made of fixed frame and glass. It is very easy to install and its plain design adds a sense of beauty in the room. Our fixed windows are a great way of bringing light and views into a space without compromising thermal efficiency.