Endorsed by Which?

The Sash Window Workshop Trading Ltd

4.9

21 Reviews

Opening Hours
Today -
  • Monday 08:00–16:30
  • Tuesday 08:00–16:30
  • Wednesday 08:00–16:30
  • Thursday 08:00–16:30
  • Friday 08:00–16:00
  • Saturday - Closed
  • Sunday - Closed

Why you can trust this trader

After undergoing rigorous assessment to become endorsed, every Which? Trusted Trader agrees to our Code of Conduct. This gives consumers the reassurance that they have the best possible protection and adds an extra layer of security to ensure best practices and procedures are followed. Which? fully investigates any breaches and will take any necessary action to ensure consumer protection.

Organisations and Awards

Mar 23
Nov 21

About

The Sash Window Workshop is the premier manufacturer and installer of traditional timber windows and doors in London and the south of England. Operating out of our factory in Berkshire, we manufacture bespoke sash windows, casement windows and external timber doors. If the frame is still in a good condition we can just replace the moving parts.

We also offer bespoke secondary glazing and a draught proofing service for timber windows.

Our highly experienced team of sales surveyors and installers will ensure that you are provided with the solution that meets your needs. Our aim is to deliver excellence at every opportunity.

We are proud that roughly half our orders come from existing customers and recommendations, highlighting our high quality products and excellent customer service.

For a free, no obligation site survey and quotation, please contact us on: 01344 868 668.

https://www.sashwindow.com/

What we do

  • Doors

    • Timber doors
    • Patio doors
    • Bi-fold doors
  • Glaziers

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

  • Double glazing

    • Double glazing installation
    • Double glazing suppliers
  • More Services

    • casement windows
    • featured windows
    • front doors
    • french door

Customer reviews

Why you can trust these reviews

All reviews are verified as being genuine and a true customer of this trader.

How can we be so sure?

100% of the reviews we publish have been through our stringent moderation process.

4.9
21 reviews
Customer Service
5.0
Quality
5.0
Value
4.8
Sort by
Excellent and Professional Service
Customer Service
Quality
Value
The company replaced four sash windows for us. We were impressed by the professionalism throughout from the initial advice on options to the carrying out of the work. Everything happened as it should and when it should. We can highly recommend this company.
Customer in Greater London Posted on 21/09/2023 , work completed 15/08/2023
The trader replied (on 22/09/2023)
Thank you very much for taking the time to leave us a review on our Which? Trusted Traders profile. I am delighted to hear that you are so happy with the service that you received when replacing your sash windows and that you would recommend us to others. Thank you for trusting us with your business. Richard Dollar, Managing Director, The Sash Window Workshop
Excellent Quality and Service
Customer Service
Quality
Value
We recently replaced our traditional Edwardian, single-glazed sashes with like for like double glazed equivalents. Prior to the installation, I visited the Sash Window Workshop to have a look around and was extremely impressed with the setup and was not disappointed with the quality of the product when it was delivered and installed. The installers were professional, courteous and polite at all times and the aftercare impeccable. When some slight issues arose (mostly due to user naivety) a member of staff was dispatched promptly to deal with them. Overall - Impressed, I would have no hesitation in recommending the company or the product.
Customer in Greater London Posted on 29/06/2023 , work completed 24/05/2023
The trader replied (on 04/07/2023)
Thank you for leaving us an online review. I am glad to hear that you would recommend us, and that you are happy with the quality of your new sashes and with the service received. We do our utmost to deliver the highest standards of both product and service, so having positive feedback makes all the difference to us. I would like to thank you for trusting us with your business. Best wishes, Richard Dollar, Managing Director, The Sash Window Workshop.
Excellent work done by nice people
Customer Service
Quality
Value
The Sash Window Workshop were professional and helpful at all stages from our initial inquiry to completion. The job was tricky, fitting new double-glazed draught-proofed sashes into existing frames and required an extra visit which was carried out promptly. We are very pleased with the results.
Customer in Greater London Posted on 14/01/2023 , work completed 04/01/2023
The trader replied (on 18/01/2023)
Thank you for taking the time to leave us a review and for your lovely feedback. I am delighted to hear that you are very pleased with the work carried out installing new double glazed sashes into your existing window frames. I would like to take this opportunity to thank you for trusting us with your business. I hope the windows continue to serve you well. Best wishes, Richard Dollar, Managing Director, The Sash Window Workshop.
The Sash Window Company
Customer Service
Quality
Value
The whole process of doing business with the Sash Window Workshop has been totally professional and efficient. Every step has occurred as and when described. From the salesman, Joe Parkinson’s visit, to the installation by Ryan and Attila with their team. Everything has gone smoothly. The product appears to be really good quality and the installation, swift and efficient with such attention to detail, safety concerns and impeccable tidying up - the whole experience painless and the result, beautiful. I am sure we can already see, feel and hear the benefits. Also the patience required while the grinding machinations of the (ridiculously unnecessary) Kensington and Chelsea planning department resolved to grant permission. Thank you for sticking with me! So, in conclusion, five stars all round for every aspect of the Sash Window Workshop’s work. Plus a special note of thanks to the very skilled, Ryan and Attila - who were exemplary… Thank you for looking after me so well. I would have no hesitation in recommending the company to anyone and everyone.
Customer in Greater London Posted on 01/12/2022 , work completed 29/11/2022
The trader replied (on 06/12/2022)
Thank you for leaving us a review on our Which? Trusted Traders profile and for recommending us. I am glad to hear that everything went smoothly and that you are very happy with your new windows. I am happy that you are already seeing, feeling and hearing the benefits of your new windows. Thank you for trusting us with your business. I will pass your feedback onto Ryan, Attila, Joe and everyone else who worked on your job. Best wishes, Richard Dollar, Managing Director, The Sash Window Workshop.
The BEST in the business
Customer Service
Quality
Value
I can't speak too highly of The Sash Window Workshop and I implore you to use them if you are looking for new windows or a door. The reason I'm so effusive is that I used another company when I first moved into my new house to do the front windows. The Co which will remain nameless (unless you want to contact me) had a very impressive website and strong reviews but we felt very let down by the service. The windows themselves were good thank god. But the service was really lacking and the engineers were shocking. I'm making this clear because windows cost thousands of pounds and it's a scary commitment. And that feeling of being let down never leaves you. When I found Sash Windows Workshop it was to the front door and from the first meeting with Stav the front/salesman it was a delight to do business with them all. The surveyors, the engineers, everyone. Plus the door itself is a solid piece of art. A beautiful thing to behold. I was so impressed I got them to do my back windows and they've just completed another perfect job from start to finish. You cannot mess around when choosing a window company. These people are just so nice, so knowledgeable, so polite, so tidy. Plus they've all worked at the company for many years and you can tell they are all part of a family and respect one another. If you want the best, look no further. You will be very happy.
Customer in Greater London Posted on 04/10/2022 , work completed 30/09/2022
The trader replied (on 06/10/2022)
Thank you for taking the time to leave us an online review on our Which? Trusted Traders profile. I am delighted to hear that you are so happy with your work that we did for you and with the customer service that you received. We do our utmost to deliver the highest standards of both product and service, so having positive feedback makes all the difference to us. I have passed your feedback onto everyone who worked on your job and would like to take this opportunity to thank you for trusting us with your business. Richard Dollar, Managing Director, The Sash Window Workshop.
Fantastic from start to finish
Customer Service
Quality
Value
From the first phone call, site visit, measurement, planning of installation date and then having all the windows and a door replaced we have been so impressed with this company. All the way through we were fully informed and reassured that everything was going to plan, whether that was being sent insurance for our payments, times and dates or answering any questions we had, the response was always swift, professional and helpful. The standard of workmanship and quality of the double glazed sash windows and door is superb. The installation was smooth, every attention to detail was met and the rooms were left clean and tidy once completed. All the old windows, door and debris was taken away by the friendly calm installers. All they left us with was well fitted, smooth running brand new windows and a draft free, warmer, much quieter home. We highly recommend their work, customer service and quality at a reasonable price for such a high standard. Very impressed and thankful we found them.
Customer in Greater London Posted on 18/11/2021 , work completed 17/11/2021
The trader replied (on 22/11/2021)
Thank you for taking the time to leave us a review on our Which? profile and for recommending us. I am delighted to hear that you are so happy with the service that you received and with your new sash windows and door. Thank you for trusting us with your business. I hope your windows and door continue to serve you well. Richard Dollar, Managing Director, The Sash Window Workshop.
Superb wooded replacement sash & casement windows
Customer Service
Quality
Value
I needed several windows replacing in my Victorian house. My neighbours recommended The Sash Window Workshop. From the first contact through to the completion of the installation, everything proceeded smoothly. Communication at every stage has been excellent and no problems arose. I realised at the start that there was a long lead time involved and in the end this was over 4 months, but it was definitely worth the wait. The installation was carried out over 2 days and the remedial work to surrounding plasterwork has been minimal. I would have no hesitation recommending this company for the high quality of its products and excellent customer service.
Richard in Greater London Posted on 30/09/2021 , work completed 17/09/2021
The trader replied (on 01/10/2021)
Thank you for leaving us an online review on our Which? Trusted Traders profile. I am very pleased to hear that you would have no hesitation in recommending us and that you are so happy with your new windows and the customer service that you received. I would like to take this opportunity to thank you for trusting us with your business. I will pass your feedback onto everyone who worked on your job. Richard Dollar, Managing Director, The Sash Window Workshop.
Quality job, prompt & polite service
Customer Service
Quality
Value
On this occasion, the Sash Window Workshop replaced two sash windows (one window only, one window plus box). We have used them in the past to repair broken sash cords. Throughout the quotation, order placement, and execution process, communication was swift and polite. On all occasions, service providers attended our property at the agreed time. The fitter who completed the work was friendly and polite, kept us well informed of progress, and cleared up after himself to a greater extent than I expected. The work was completed to a high standard, and we are very pleased with our new windows. The Sash Window Workshop is expensive but I believe it is money well spent. I would certainly use them again in the future and would have no hesitation in recommending them to others.
Customer in Greater London Posted on 26/07/2021 , work completed 15/07/2021
The trader replied (on 28/07/2021)
Thank you very much for taking the time to leave us a review on our Which? profile and for recommending us to other potential customers. I am delighted to hear that you are happy with the service that you received, from the initial quotation to the installers cleaning up after the work was complete, and that you are also pleased with your new windows. Thank you for continuing to trust us with your business. I will pass your feedback onto everyone involved in your order. Richard Dollar, Managing Director, The Sash Window Workshop.
Great Products, great service
Customer Service
Quality
Value
The whole service is excellent. The initial list to quote happened very quickly and I had a quotation within a day. The Workshop then communicated when they would install the windows, with follow up texts and emails as reminders. The actual installation was super. The installer arrived exactly at the time he said he would, and has done a fantastic job installing and cleaning up behind him. The company also confirmed when they had received all payments, so that it is very clear that nothing has gone wrong anywhere. Great job with all parts of the company giving a great, coordinated service.
Customer in Windsor and Maidenhead Posted on 30/06/2021 , work completed 25/06/2021
The trader replied (on 01/07/2021)
Thank you very much for reviewing us on Which?. I am happy to hear that you found the whole service to be excellent. I would like to take this opportunity to thank you for trusting us with your business. I will pass your feedback onto everyone who worked on your job. Richard Dollar, Managing Director, The Sash Window Workshop.
The most professional company I have ever used
Customer Service
Quality
Value
I got double glazed windows installed from the Sash Window Workshop about five years ago. I was so pleased with the company and the installation that I wanted to replace my front door. It took me another five years to finally get around to replacing the front door and I could only dimly remember their name. I Googled double glazed sash windows and I identified them by their logo. What I love about this company is that they do a very, very professional job and are great at communication. Having worked with a lot of builders in the past, I know you cannot take either of these for granted. They respond to anything I ask immediately and are always very clear and prompt with telling me what is going to happen and when. I love the sash windows and the door looks great. I haven't lived through a winter yet with the door but am confident that it will make a great contribution towards reducing my energy bills - and it looks great! They aren't cheap but I have found that cheap means I have to re-do the job a few years later. It also saves on painting - I never have to paint the windows (wooden windows) and I know I won't have to paint the door. That's another saving in maintenance. I can't recommend them more highly.
Pat in Greater London Posted on 15/06/2021 , work completed 12/05/2021
The trader replied (on 16/06/2021)
Thank you very much for your online review. I am delighted to hear that your sash windows are still serving you well. We do our utmost to deliver the highest quality product and service, so I am very glad to hear that you are so happy with your new front door and with the service that you received. I will pass your feedback onto everyone involved in your order. Thank you for continuing to trust us with your business. Richard Dollar, Managing Director, The Sash Window Workshop.