★★★★★
Victorian character, a warmer and quieter room
View this five-star review on Trustpilot“my living room is so much quieter, warmer and they look identical to the Victorian original it's replaced!”
THE ORIGINAL BOX SASH WINDOW COMPANY · SINCE 1979
Beautiful timber windows. Made for your home.
Sash and casement windows, replacement sashes, repairs and timber doors. We’ll help you find the right option for your home, without the pressure.
Friendly advice · No pressure, no obligation
Explore all our window stylesMade in BritainSince 1979
Timber specialistsWindows first, doors too
Small or big projectsOne window or more
Beautiful timber windows.Made for real homes.
TRUSTED STANDARDS
British timber craftsmanship with the details that matter.
Made in Britain
FENSA Registered
Responsibly sourced timberYOU DON'T NEED TO KNOW ALL THE ANSWERS
What would you like help with?
Start with what you have. We can talk through the rest.
WINDOWS THAT BELONG IN YOUR HOME
*Guarantees depend on the product and applicable terms.
Get to know Box Sash
Beautifully made. Easy to talk about.
Choosing windows is a big decision. We’d rather help you understand the options than push you towards the biggest job.
Box Sash has made timber joinery in Britain since 1979. We take care over the details that make a difference: proportions, glazing, finishes and how the window feels in your home.
Since 1979Experienced British joinery
50-yearEligible timber-frame guarantee*
FENSARegistered company
Made hereMade in Britain
OUR WINDOWS & DOORS
Explore what we make.
Sash and casement windows, made for your home. We also make timber doors to match.
See all window stylesA MORE PRACTICAL WAY TO START
Worried you’ll need to replace everything?
You might not. If your existing box frames are in good condition, replacement sashes could be an option. And if you have a question about restoration, we can discuss that too.
We’ll explain the choices before you make a decision.
Ask us about your windows
Keep the character.
Improve the comfort.
Improve the comfort.
NO COMPLICATED PROCESS
Start with a conversation.
We know every home is different. You don't need drawings or detailed measurements just to get in touch.
- 01
Tell us what you need
One window or a whole house. Tell us what you’d like to improve.
- 02
We’ll talk it through
We’ll listen, ask a few questions and explain the options.
- 03
Agree the next step
If a visit is needed, we’ll explain how your quotation will be prepared.
REAL HOMES, REAL JOINERY
Explore our projects Real windows. Real homes.
QUICK ANSWERS
A few things worth knowing.
Still have questions? Call us and speak to a real person.
01753 858196Can I keep my existing window frames?
Sometimes. If your current box frames are sound, replacement sashes may work. We can help you understand what’s suitable for your home.
Can I enquire about just one window?
Yes. Tell us what you have in mind, whether it's one window or a larger project, and we’ll discuss the best next step.
How much will my windows cost?
It depends on the window size, condition, glazing and specification. We’ll talk through the options and prepare a quotation based on your property — without suggesting you need more than you do.
Do I need exact measurements to get in touch?
No. A few details about your home and what you'd like to change are enough to start a conversation. Photos can help, but they aren't required.
WE'D LOVE TO HEAR ABOUT YOUR HOME
Let’s make your home more comfortable.
No technical jargon, no pressure. Just a friendly conversation about what might work.
Or email info@boxsash.com