Of course, all VELFAC composite windows are supplied with energy glazing with either two or three layers of glass.
Our calculations show that there are often hundreds of pounds to save by replacing old windows for our products.
Our composite windows give more than they take
Our most energy efficient windows complie with the energy requirements of not only the present, but the future, and provide more energy to the home than they let out. These composite windows can be used in all types of building, including passive and active houses.