The invention of the timber sash window (or box sash windows) is sometimes credited, without conclusive evidence, to Robert Hooke, an English scientist and architect, a polymath, sometimes called the “England’s Leonardo”.
Unlike witch windows that open diagonally, sash windows have two main panels that slide vertically up and down to provide the level of ventilation necessary. In order to facilitate this vertical movement a sash weight or counter-weight is concealed within the window frame.
Each panel is split into a number of panes with typically an arrangement of six panes per panel which creates the traditional Georgian arrangement of “six over six” for period sash windows.
Victorian windows are characterised by a smaller number of panes (typically “two over two” or “three over three”). Edwardian windows would later take advantage of developments in glass technology with larger glazed panels at the bottom of the wooden window and a variety of panes at the top.
At Green Home Glazing we will match the design and style of your existing windows.
Our specialist surveyors will measure the existing structural window openings, we will record the appearance of the timber frames and the window panels, and we will prepare detailed drawings for you to approve before we manufacture your new windows.
Your new windows will be manufactured by timber sourced sustainably (FSC® certificate), from a variety of high quality species (Pine, Oak, Mahogany, Larch, Accoya), in a wide choice of colours for varnishes and paints, made with hardware mechanisms of stainless steel, coated with zinc and aluminium.