London Box Sash Windows

London Box Sash Windows is London’s leading premium manufacturer and installer of traditional timber sash windows and doors. Operating out of our factory in southwest London, our product range includes sash windows, casement windows, doors and a varied amount of bespoke commissions. With more than 30 years as a family owned and run company, we understand our customers’ needs. That’s why we produce a quality product with a high level of customer service every time. Our goal at London Box Sash Windows is to meet targets on price, quality and service. Together with our dedicated team, we are committed to continuously improving and innovating our product, so our customers always get the best possible experience.