uPVC Vertical Windows
These traditional windows have become a perfect match, by making the opening aperture of these windows bigger than the width. The easy structure of these windows is based on spiral balances, frame specific and site tensioned. The spiral balance methodology has completely replaced the traditional pulley system in these windows, as now this product fits entirely in aperture types and straight through. Spiral balances in these windows are designed especially to manage the frame size and sash weight.