Sitting close to the banks of the River Thames in leafy West London, Selectaglaze secondary glazing was chosen to help improve the thermal, acoustic and security properties of one of London’s Grade I historic palaces. In 2005 a large restoration project began, which is due to be completed in spring 2019; the final phase seeing restoration to the Tudor quadrangle and the botanic garden. Purcell Architects was engaged to produce a sensitive design for the renovations, bringing office space up to 21st century standards as well as the design of a new museum area. Sykes and Son Ltd was appointed main contractor and approached Selectaglaze to provide the secondary glazing. The original single pane Tudor windows could not be replaced and did little to stop draughts, retain heat, stop noise ingress 0r provide security. 34 units were manufactured for the office areas which were a mixture of Series 10 2 and 3 HS, plus some Series 45 HC. 6.8mm acoustic laminate glass was used to improve acoustic and thermal performance. Fitch catches and slimline lockable handles were used to add an element of security. The most complex part was the measuring and production of the splayed timber grounds, which were colour matched and then carefully scribed on site to ensure a good fit. 11 units were installed to the museum area; 3 of which were large 2308mm (h) x 1502 (w) Series 85 2 HS enhanced security units to meet performance requirements for the Government Indemnity Scheme.