01753 858196 info@boxsash.com

Manufacturers and Installers of Bespoke Traditional Hardwood Timber Windows and Doors

Here at The Original Box Sash Windows Company we’ve helped protect and prolong the beauty of period homes and streets for more than 40 years 

SASH WINDOWS  (NEW AND REPLACEMENT),  CASEMENT WINDOWS,  FRENCH DOORS,  EXTERIOR DOORS

Since our earliest days in London we have supplied top quality windows and doors to thousands of town and country properties that still look fabulous today.

Beautiful, solid and expertly fitted, what we make lasts and with our industry leading lifetime guarantees on timber frames and parts and 10 year guarantees on glazing, customers come back to us time and time again. Hardwood timber windows, French doors, bi-fold doors and front doors; we do it all.

As the company who invented the construction method for double glazed timber sash windows (patented in 1995 and now released), we are justifiably leaders in the marketplace. So when you choose us,  you can be sure you are choosing the best. Indeed, we are so confident of our craftsmanship, we encourage our customers to visit our factory and see their windows and doors being made (we will even buy you a lunch or dinner afterwards!). 

We operate across the southern half of the UK, predominantly in London, Surrey, Hertfordshire, Berkshire, Buckinghamshire, Hampshire, Sussex, Bedfordshire, Oxfordshire, Cambridgeshire, Essex, Gloucestershire, Wiltshire, Suffolk.

Jane Foley

Customer Liaison Manager

Jane will take your enquiry, arrange for our Estimators to come and visit you and guide you through the ordering process.

Tanya Sim

Installation Manager

Tanya will organise everything from fitting arrangements through to completion – ensuring you are happy with every step of the process.

Our Craftsmen

Wayne

Mark

Darren

Paul

Gareth

Darren

Paul

Dave

Traditional Meets Performance

Our traditional timber sash windows and doors have delighted customers for over 40 years. Combining elegance with exceptional standards of performance, insulation, security and finish, our products are of the very highest quality.

Technical Excellence Since 1979 

We invented the double glazed sash window. A patent was recorded in 1995, which has since released the patent.

Our Lifetime Guarantee

Lifetime Guarantee on Frames. 10 year Guarantee on Glazing. Lifetime Guarantee of Parts. All insured by the Independent Warranty Association.

The Original Box Sash Windows Company

The Joinery
29-30 The Arches
Alma Road
Windsor
Berkshire
SL4 1QZ

01753 858196