London Box Sash Windows
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London Box Sash Windows With nearly 40 years of experienced craftsmanship, we create the finest range of sash windows, casement windows and doors - bespoke and tailored to suit your needs. John Ellis started the business nearly 40 years, when he decided to take his passion for craftsmanship and joinery and create a window company based on offering the highest level of quality and service.

With the help of his two sons, Patrick & Jack and backed up by a highly skilled team of craftsman London Box Sash has grown into London's leading premium window and door manufacturer. As a family business, we have a deep understanding of manufacturing and installing professionally crafted windows, with a knowledge that is unmatched and truly valued, which helps us to create products that deliver on every level.

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read more › With our factory situated in the heart of South London, London Box Sash Windows has been the South East's number one timber sash window supplier. In particular, the East Dulwich area, due predominately to positive recommendations. The map highlights the jobs we've completed over the past couple years. Here at London Box Sash Windows we're very proud to be East Dulwich and the South East's favourite sash window supplier. If you are a homeowner in East Dulwich or the South East and your timber sash windows are in need of replacing, we offer a free, no obligation on-site survey of your property and a full written quotation.

read more › Accoya, the world-leading modified wood manufactured by Accsys Technologies, has been used by a leading UK supplier to create an innovative window solution for a Victorian warehouse project. London Box Sash Windows was approached by Ben Adams Architects to design long-lasting, low maintenance, high performing timber sash windows for the renovation of the Bryant Building in London's Shoreditch. London Box Sash Windows selected their unique Accoya product, '50 Year Sash Windows', and produced 45 windows comprising of 24mm 4/16/4 double glazed, low E glass units.

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