Established in 1979
We’ve spent decades working with the details that make traditional sash windows distinctive.
ESTABLISHED 1979 · BRITISH MADE
Timber sash windows. Made in Britain.
Made to measure with the traditional details that suit your home, plus modern glazing options. Box Sash has specialised in timber sash windows since 1979.
We’ll call you to discuss your windows.
Since 1979Decades of sash window experience
Made in BritainBritish-made timber windows
Made to measureDesigned around your property
START WITH A CALL
Thinking about new sash windows?
Tell us how to get in touch and a member of the Box Sash team will call you about your project.
01We’ll call to find out what you need.
02We can arrange a home visit to look at your windows properly.
03We’ll discuss the options and prepare a tailored quotation.
No measurements needed at this stage.
Request a callback
We’ll be in touch to discuss your windows.
Thank you. We’ll be in touch.
A member of the Box Sash team will call you about your project.
Call us on 01753 858196WHY BOX SASH
Experience you can see in the details.
Good sash windows should look like they’ve always belonged to your home. The proportions, joinery and finish all matter.
Made here in Britain
Our timber sash windows are made in Britain, to measurements and specifications that suit your property.
A considered finish
From glazing bars and sash horns to frame profiles, we’ll help you choose windows that suit the style of your home.
50 yearsTimber-frame guarantee
10 yearsGlazing-unit guarantee
WHY WE VISIT YOUR HOME
The right windows start with seeing the house.
Every property is different. A home visit helps us look at your existing windows, understand the original details and talk through what you’d like to improve.
- Check the proportions, openings and period features.
- Discuss draughts, noise, glazing and how the rooms are used.
- Consider the right specification before preparing your quote.
We’ll discuss arranging a visit when we call.
Request a callbackTIMBER SASH WINDOWS
Windows that belong to the home.
Whether you’re replacing a single window or planning for the whole house, the details make all the difference.
BUILT FOR YOUR HOME
Traditional timber. Modern comfort.
We make timber sash windows with the features you’d expect in a period property, alongside modern glazing options to help with everyday comfort.
Traditional detailing
Glazing bars, mouldings and sash horns selected for the right appearance.
Modern glazing
Options to help reduce draughts and improve comfort without losing character.
Where are Box Sash windows made?
Our timber sash windows are made in Britain, UK.
Will someone visit my home?
We’ll call to discuss what you’re looking for and whether a home visit is appropriate. Seeing the property can help us assess existing windows, period features and the practical details before quoting.
Do I need measurements to get started?
No. We can discuss your windows and arrange the next steps without measurements at this stage.
Can I keep the original look of my windows?
We can discuss traditional frame proportions and details, including sash horns, glazing bars and mouldings, to find what suits your home.
What guarantees are offered?
Box Sash offers a 50-year timber-frame guarantee and a 10-year glazing-unit guarantee. Ask the team about the applicable terms.
BOX SASH · ESTABLISHED 1979
Looking to replace your sash windows?
Tell us about your windows. We’ll call to discuss your project and arrange a home visit where appropriate.
Request a callbackOr call 01753 858196