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The History Of The Sash Window | Sash Windows Wiltshire

If you’re thinking of investing in sash windows in Wiltshire, you certainly won’t be alone. These kinds of windows have long been a popular option for homeowners and have been a staple feature in properties for hundreds of years.

They can in fact be traced far back as the 17th century and were originally designed because back then streets were a lot narrower than they are now – so windows that jutted out from a building could potentially have touched the building opposite.

In actual fact, sliding sash windows first became seriously popular after the Great Fire of London way back in 1666… and you can see some early examples of stunning architecture featuring these windows in the likes of Hampton Court, Ham House and palaces like Kensington and Greenwich.

Soon after the Great Fire, building regulations were changed to help prevent the spread of fire in the future. The guidelines decreed that timber window frames be recessed behind stone or brick, which helped contribute to the development of Georgian architecture – of which sash windows were a huge feature.

It’s also important to note that sash windows – which feature big panes of glass – were brought to the fore thanks to developments in glass production. Glass used to be incredibly expensive but over time it became cheaper to produce and it was easier for bigger panes to be brought to market, which helped to drive down costs.

Changes in the frame itself were also seen because glass panes became heavier and bigger, so the frame needed to be able to provide additional support. You might well notice sash horns in the corners of your new sash windows – these were used to really help reinforce the windows and they’re now one of the calling cards of traditional sash windows.

Since Georgian times, sash window design has changed a little – although not dramatically. In the Victorian era, for example, bigger and better quality glass was used, which mean that there was less need for glazing bars… so these were a lot smaller in appearance.

And come Edwardian times, sashes were bigger so floor to ceiling windows started to come to the fore. Stained glass also began to be used – so perhaps consider having this as an option when you do come to invest in box sash window installation.

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