01753 858196 info@boxsash.com


Sash Windows Berkshire

Sash windows are a beautiful addition to a traditional or period-style property. If you’re inspired by the understated elegance of nearby Cliveden House and other such historic buildings, why not recreate the property’s simple yet stately beauty at your own home with the expertise of Berkshire sash windows company Box Sash?

Specialists in crafting and fitting box sash windows, we’ve been in business since 1979, supplying homes in and around Berkshire with bespoke, beautiful sash windows that add instant appeal and offer exceptional durability.

The benefits of sash windows

Traditionally timber framed, box sash windows were popularised in Georgian times and have since become synonymous with quintessential English style. Sash windows add understated period charm to properties old or new with traditional features like class mouldings and pulley and cord systems.

As well as enhancing a property’s appearance, quality sash windows provide exceptional value for money. Heavy and durable, sash windows can last for years when professionally made and installed. The best window fitters sure of their skills offer lifetime guarantees that their sash windows will stand the test of time, providing peace of mind and assurance that your investment is protected.

Sash windows can also be customised to personal preference, so if you have a set colour scheme for your window frames, want to swap traditional clear glass for stained or have specific fittings in mind, your windows can be specially made to suit your tastes and requirements. External glazing bars and horns can be matched to the current building, along with internal mouldings, for bespoke windows that fit in seamlessly with the style of your property.

Safe, stylish, sound-reducing sash windows

Modern sash windows share the same appealing appearance as their period predecessors but contemporary manufacturing and fitting techniques mean that the sash windows of today are much more reliable and long-lasting than those of bygone times, when the trades of windows craftsmanship and fitting were changing and materials and skills were not as advanced.

The best types of timber were not as easy or quick to source hundreds of years ago, with specialist materials taking months to arrive in the country by water. Now, sash window companies can access use the most durable timber from around the world with relative ease, improving the structure and stability of the window frame. Modern moulding and carving techniques mean that the timber can be crafted to a range of standards or bespoke styles, depending on your unique requirements.

A variety of glazing options are offered, including laminated or toughened glass, although most sash windows comes with double glazed safety glass as standard. Well-made double glazed windows that are properly fitted can reduce noise disturbance and provide extra security without compromising on style. What’s more, sash windows are easy to maintain with minimal care and are usually lockable for enhanced security.

For more information about sash windows installation in Berkshire, or for a free quote, contact the friendly team at Box Sash today – let us bring the understated elegance of period property into your home.

    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
    SL4 1QZ

    01753 858196