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Trusted Traders

The Original Box Sash Windows Company

Logo on white
Opening Hours
Today - 09:00–17:30
  • Monday 09:00–17:30
  • Tuesday 09:00–17:30
  • Wednesday 09:00–17:30
  • Thursday 09:00–17:30
  • Friday 09:00–17:30
  • Saturday - Closed
  • Sunday - Closed
Profile thumb janefoley

4.8

8 Reviews

About

Founded in Windsor, Berkshire and manufacturing Timber Sash Windows since 1979.

Today we install our double or triple glazed wooden windows, or upgrade old ones, for hundreds of satisfied customers

We can save heating costs, reduce noise from outside and provide extra security, all without impairing the wonderful aesthetics of original wood windows

WHY YOU ARE IN SAFE HANDS
Our Customer Liaison Manager, Jane, photo above, 24 years experience with us, can carefully guide you through your order, to successful completion.
click "Visit website" (under map)

THERE ARE 7 IMPORTANT THINGS YOU SHOULD KNOW BEFORE BUYING NEW TIMBER WINDOWS
To find out these facts
click "Visit website"

THE TOP CHOICE OF WINDOWS FOR THE HOME OWNER
who wants to save on heating costs,
who wants to reduce noise from outside,
who wants extra security and peace of mind, and/or
who may need planning consent for new Sash Windows
click "Visit website" to find out

HISTORY OF THE BOX SASH WINDOW
click "Visit website"

What we do

  • Double glazing

    • Double glazing installation
    • Double glazing suppliers
    • Double glazing repairs
  • Glaziers

    • Sash windows
    • Timber windows
    • Replacement window services and repairs
    • Window consultants
    • Double glazing installation
  • Draughtproofing installers

Customer reviews

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Reviews summary

4.8
8 reviews
Customer Service
4.9
Quality
4.9
Value
4.6
Sort by
Outstanding workmanship
Customer Service
Quality
Value
I cannot recommend this company highly enough. The quality of workmanship and professionalism of the window fitters exceeded all my expectations. They were prompt each morning, courteous and efficient. The windows themselves are beautiful and best of all the workmen left the flat cleaner than it had been when they arrived!
Laura, London23/11/2016
New sash windows
Customer Service
Quality
Value
Very good quality windows and installed in highly professional manner
Rob C27/09/2016
Excellent Company
Customer Service
Quality
Value
A first class company and a first class product. We were delighted with there attention to detail and there fitters. Would thoroughly reccomend.
vivienne18/08/2016
Lovely sash windows with acoustic glass
Customer Service
Quality
Value
These sash windows are very high quality - they look just as nice as the originals but have greatly reduced the noise levels from the main road outside. All the staff were very friendly and knowledgeable, and the work was carried out fast with minimum disruption. I would definitely recommend this company.
Rachel06/08/2016
House now finally warm
Customer Service
Quality
Value
We didn't want to change the look of our Victorian cottage so decided on wood double glazed sash replacements. We had been worried about the price, but it wasn't as bad as we'd feared and the quote from Original box sash was slightly lower than another we'd got. We were very happy with the service, which was friendly, helpful and very thorough. We never felt pressured to buy and I was pleased that they were clear about the prices because I hate dealing with salesmen who tell you everything except what its going to cost. The fitter was very pleasant and efficient, and did a fantastic job, fitting three windows into a bay and one window in the back of the room in just one day. We are delighted with the windows which look superb - so much better than the old windows. Best of all, during this freezing weather we have really noticed how much warmer the house has been.
167982303/02/2015
I thoroughly recommend The OBSW Co
Customer Service
Quality
Value
The quality is outstanding and the price in line with other quotes. The new sashes fit the existing frames perfectly, sliding smoothly. The Original Box Sash Window Co repaired a few frames where needed, replaced all weights and fitted top quality cords and new parting and staff beads embedded with brush strips for total draft proofing. The house is now much warmer and quieter. The two fitters took a real pride in their work fitting all 14 windows in just two days with minimum disruption.
2011-07-13 16:59:56.2826/02/2014
Sash window replacement
Customer Service
Quality
Value
We received 3 quotes for replacing the old sash windows at the back of our Edwardian house. OBSW's quote was not the cheapest but was by far the most professional and the most honest - the other quotes included replacing the outer frames which, it transpired, was not necessary! OBSW did an excellent job, as per their quote and in good time. We have recommended them to neighbours who are also very pleased with the work.
christopher09/01/2014
Quality product, efficient installation
Customer Service
Quality
Value
Original Box Sash Window Company replaced all the frames in my property, a flat in a Victorian building. As a conservation area, there were limits on what products could be installed, and consequently the cost was high. However, OBSW gave helpful advice, a good value quote, delivered and installed as agreed, and have continued to be helpful and supportive in the years since. The guarantee provided is very reassuring when you have spent a signficant sum. Highly recommended.
autloc09/01/2014