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Alan Clark Joinery
  • Telephone: 01634 571998
  • Email:


Thank you for your interest, the joinery is not currently accepting new orders but please use the email address below to register your interest and we’ll get back to you as soon as we have capacity.

For existing customers please use the email address or phone number below regarding current progress.

Phone: 07403 334531

Box Sash Windows

Box sash windows are becoming more and more popular with homeowners and commercial building contractors across the UK and Europe.

Utilising our extensive experience and expertise and traditional joinery techniques, we specialise in designing and crafting box sash windows of the highest possible quality. Each piece is lovingly joined in our well-equipped workshop in Gillingham, Kent, and tailor made to your individual requirements.

All our exquisite box sash windows are made from the finest timber materials that are sourced from reputable and sustainable sources, guaranteeing you environmentally friendly joinery products of the highest quality.

The beauty of our bespoke design-and-join service is that we can create any new box sash window installations to your individual specifications. We enjoy taking on challenging projects and helping to improve the look and feel of any domestic or commercial property.

Our box sash windows are designed and crafted to last for many years to come and we will replace every single window to ensure a consistent and fitting look if required. Our experience and expertise means we are just as at home working on a complete new build project as we are creating single pieces of joinery for a homeowner or tradesman.

No matter what style, colour or shape of box sash window you need, we have the skills, expertise and experience to provide a cost effective, reliable and attractive joinery solution.

The box sash windows that we provide our customers are of the highest quality and meet any of their requirements. We want to ensure that you receive the bespoke windows that you need for your property and also exceed your expectations in quality of the product and the installation. Call us today on 01634 571998 to arrange your own FREE no obligation quotation. You can talk to our custom joinery experts who will give you all the information you need for your very own bespoke box sash windows.

For your peace of mind, all our box sash windows are designed and manufactured with current building regulations and official EN 14351 certification procedures in mind, guaranteeing you reliability, style and absolute quality.

Based in Gillingham, Kent, we work throughout the South East, providing homeowners, listed property conservationists, building tradesmen and a wide range of commercial contractors with the finest in box sash windows. We have designed and created one-off pieces of custom joinery have for building, renovation and conservation projects in Medway, Maidstone, Rochester, Sevenoaks, Tonbridge, Herne Bay, Orpington, Chatham, Canterbury, Sheerness, Strood, Ashford, Sittingbourne, Rainham, East Malling, Meopham, Whitstable, Gillingham, Aylesford, Tunbridge Wells, Faversham, Gravesend, Kent, Sussex and Surrey. We have even joined custom box sash windows and bespoke doors for clients in France!

If you would like any more information about any of our box sash window production or all-round custom joinery services, please do not hesitate to contact us. We will discuss your requirements and design intentions and provide you with a absolutely free, no obligation joinery quotation.

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