Six over Six Windows

Six over Six Windows is a London-based specialist in sash window restoration and double glazing retrofitting for period and heritage properties. Instead of replacing original timber windows, we refurbish and upgrade them — repairing rot, servicing pulleys and cords, renewing ironmongery, draught-proofing, and retrofitting slim vacuum double glazing (VIG) to improve thermal efficiency, security and soundproofing while preserving the character of your home. We work on Georgian, Victorian and Edwardian properties, including Grade II listed buildings, across London and the surrounding counties. Every project starts with a free, no-obligation quotation. Website: https://sixoversixwindows.co.uk/