From the conservation point of view there is nothing in the literature regarding the treatment of glass chandeliers. Past and present treatment seems to concentrate on dismantling and cleaning, replacing missing metal and glass sections and repinning the lustres which form pendants and chains. Cleaning is undertaken by commercial firms using proprietary solutions and abrasives, the contents of which are largely unknown. There appears to have been no attempt at permanently recording the details of glass chandeliers. The author discusses historical research, planning (from the viewpoint of a private conservator), examination, dismantling and cleaning. A glossary and a list of equipment, tools and materials are included as appendices.