Conservation Secondary Glazing Ltd supplies the CSG system, a patented secondary glazing designed for traditional sash and case windows in listed and heritage homes. The glazing fixes to the staff bead, draught-proofs the whole window rather than individual panes, and remains almost invisible from inside and out, so existing shutters continue to work and the original window is left unaltered. The firm publishes technical drawings, a BRE report on thermal performance and noise-reduction test results, and keeps a showroom in Charlestown, Fife, with the system fitted to a sash window. Installations cover most of Scotland and many parts of England.
Suitable for: sash-windowed period houses with working shutters where planning constraints rule out framed secondary glazing.
Services: secondary glazing for sash and case windows; survey; installation; technical documentation for listed building applications.
Location: Charlestown, Fife; covering most of Scotland and many areas of England.