01753 858196 info@boxsash.com


Box Sash has been an industry leader in traditional timber windows and doors for more than 30 years. Our success is due not only to the quality of our products, but the quality of our customer service, which centres on honesty, transparency, integrity and reliability. Once your windows have been installed, our dedicated customer care team is on hand to advise and assist on any aftercare issues you might have.


Lifetime Guarantee

Our premium quality traditional timber windows are designed to last a lifetime with minimal care and maintenance. If any of the parts on the windows or doors you have purchased from us should need replacing during your lifetime, we will supply these free of charge. We store details of your installation on our files, enabling us to source and replace parts quickly, and ensuring quick, hassle-free service for you. This is an addition to your free five year no quibble product and installation guarantee.

Transfer of Lifetime Guarantee

 Our beautiful bespoke windows and traditional timber doors are an asset to any character, period or historic property. If you decide to move home after having our windows and doors installed, your lifetime guarantee can be transferred to the new owner of your property, helping you to maximise the value. Simply click the Transfer Your Lifetime Guarantee below & fill in the form, we will then arrange the transfer.

Key Benefits


Crafted from the highest quality prime African hardwood, our windows and doors offer a range of unparralleled beauty and performance with lifetime guarantees.


Our windows and doors are double glazed with safety glass, and come with a premium quality locking system for your complete peace of mind.

Low Maintenance

Our beautiful traditional timber windows require minimal care and attention to keep them looking and working in premium condition for a lifetime.


We use seasoned prime natural African hardwood from Forestry Stewardship Council certified sustainable sources, combining elegance with environmental responsibility.

Lifetime Guarantee

For complete peace of mind our superior quality timber products come with a lifetime guarantee, plus a 5 year guarantee on all parts, all insured by the Independant Warranty Association.


Featuring classic mouldings, traditional timber horns, and counter-balance, pulley and cord systems, our inidvidually crafted windows and doors deliver a truly authentic feel.


Our products are finished with a high quality micorporus paint,  offering optimum, long-term resistance to the elements and easy maintenance.


Combining style and performance, our windows and doors are designed for maximum comfort and sealed against draughts, damp air, noise pollution and dust.

Energy Efficiency

A traditional product does not mean compromising on modern performance. Our flush sealed Argon filled windows prevent heat loss, helping you lower your energy bills. Beauty and performance combined.

The Original Box Sash Windows Company

The Joinery
29-30 The Arches
Alma Road

01753 858196