Often older style windows, opening vertically within the guides of the sash box, will nearly always have Twin Helical Drives and open to a maximum of 200 mm ( 8” ), it is imperative that the windows run freely in the sash guides before our mechanisms are fitted.
Environmental Controls | Sash Windows
Copyright Ridley Electronics Ltd 2012
Terms | Accessibility | Sitemap | Address: Stable Environment, Chilmark Manor Farm, Chilmark, Nr Salisbury, Wilts, SP3 5AF