The Sash Window Workshop Trading Ltd

Bracknell5.0· 33 reviews · 2 sources
Companies House
Active incorporated business
Trust score
74out of 100
Rating5.0★
Review volume33
Source diversity2 sources
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About

The Sash Window Workshop specialises in the manufacture and installation of traditional timber windows and doors across London and the South of England. We also provide a nationwide supply-only service. Our bespoke sash windows, casement windows and external timber doors are handcrafted in our Berkshire workshops to combine period charm with modern energy efficiency. Where possible, we can replace only the moving parts of your existing windows if the frames are still in good condition. In addition, we offer bespoke secondary glazing and a draught proofing service for timber windows. With a commitment to craftsmanship, sustainability and exceptional customer care, we aim to deliver excellence on every project. Around half of our orders come from returning customers and recommendations — a testament to the quality of our products and service. For a free, no-obligation site survey and quotation, please contact us on 01344 868 668.

Reviews · public evidence

What the public record says

5.0out of 5
33 reviews in public evidenceCross-checked across 2 sources
Companies HouseSource profile linked
Which? Trusted TradersSource profile linked

Highlights

"Sash Window Workshop were absolutely brilliant. They have done a beautiful job replacing quite intricate windows, and they were efficient, polite and professional. We could not be happier."

Customer in Greater LondonWhich? Trusted Traders5.0 rating

"We had 8 new sash windows, including one replacement window sill. The work was undertaken according to schedule and completed within the agreed time frame. The cost of the project was as agreed on the original contract with no variations. It was evident from the initial visit by the surveyor that this company has high professional standards. The surveyor was very personable and knowledgeable explaining clearly all aspects of the proposed work. He was also respectful of us in relation to Covid-19 protocols. We received a detailed, written proposal and any alterations were dealt with promptly. A contract was drawn up, which was transparent and easy to understand. The staged payments were specified and wholly reasonable. This company has very good administrative support. Circumstance meant a long lead time but the installation date was agreed and honoured despite coinciding with National Lockdown 2. The fitter arrived on time to commence the installation and he was polite, respectful and appreciative of our preparation. He discussed how the installation would proceed and kept us fully informed of progress. The standard of work was excellent throughout. He is highly skilled, hard working and proud of his work. He was meticulous in his work, finishing and clearing up. We are delighted with the work. The window units are high quality and manufactured to replicate the design of the original. An excellent company offering high quality products and a complete, coherent service."

Customer in Greater LondonWhich? Trusted Traders5.0 rating

"I would hesitate to recomend this company . First class job Efficient team , no fuss and no mess ⭐⭐⭐⭐⭐"

Customer in Greater LondonWhich? Trusted Traders5.0 rating

Detailed reviews

Customer in Greater London5.0 / 5

Sash Window Workshop were absolutely brilliant. They have done a beautiful job replacing quite intricate windows, and they were efficient, polite and professional. We could not be happier.

Which? Trusted Traders
Customer in Greater London5.0 / 5

We had 8 new sash windows, including one replacement window sill. The work was undertaken according to schedule and completed within the agreed time frame. The cost of the project was as agreed on the original contract with no variations. It was evident from the initial visit by the surveyor that this company has high professional standards. The surveyor was very personable and knowledgeable explaining clearly all aspects of the proposed work. He was also respectful of us in relation to Covid-19 protocols. We received a detailed, written proposal and any alterations were dealt with promptly. A contract was drawn up, which was transparent and easy to understand. The staged payments were specified and wholly reasonable. This company has very good administrative support. Circumstance meant a long lead time but the installation date was agreed and honoured despite coinciding with National Lockdown 2. The fitter arrived on time to commence the installation and he was polite, respectful and appreciative of our preparation. He discussed how the installation would proceed and kept us fully informed of progress. The standard of work was excellent throughout. He is highly skilled, hard working and proud of his work. He was meticulous in his work, finishing and clearing up. We are delighted with the work. The window units are high quality and manufactured to replicate the design of the original. An excellent company offering high quality products and a complete, coherent service.

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Customer in Greater London5.0 / 5

I would hesitate to recomend this company . First class job Efficient team , no fuss and no mess ⭐⭐⭐⭐⭐

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Pat in Greater London5.0 / 5

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.

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Customer in Windsor and Maidenhead4.7 / 5

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.

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Customer in Greater London4.7 / 5

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.

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Richard in Greater London5.0 / 5

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.

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Customer in Greater London5.0 / 5

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.

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Customer in Greater London5.0 / 5

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.

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Customer in Greater London5.0 / 5

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.

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Customer in Greater London4.7 / 5

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.

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Customer in Greater London4.7 / 5

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.

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Customer in Greater London5.0 / 5

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.

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Customer in Berkshire5.0 / 5

We had the original 1850s bay windows on our house replaced and the fifty year old secondary glazing removed. Communication between the company and us was efficient, the survey was thorough and the installation went smoothly. Plenty of dust sheets were provided and the installers were pleasant and hard working. We are very pleased to now have windows we can open easily. The rotted sills were also replaced and the windows look great both inside and out blending well with windows which were not replaced.

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Customer in Oxfordshire5.0 / 5

Excellent service and beautiful windows installed. We’ve recommended this company many times and numerous friends and neighbours have used them too and have also been delighted.

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Customer in Hertfordshire5.0 / 5

We asked the Sash Window Workshop to provide a quote for secondary double glazing for an upstairs window due to increased traffic noise. The sales visit was very informative and helpful and at no point did it feel like we were being given a hard sell. It was recommended that we instead replace our window with a double-glazed option made to match the one being replaced but with sufficient gap and additional acoustic glass. Throughout the process of survey, manufacture and the lead up to installation, communication was excellent and always polite and friendly. We were helped to find a scaffolding company, and on the day of installation, the fitters arrived promptly and took care of our home, working carefully and cleaning up afterwards ( not a great deal required but it was appreciated). The window is now in, looks perfect and provides a huge improvement in noise. I can't recommend them highly enough. Extremely well made windows in keeping with our house.

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Customer in Greater London5.0 / 5

We chose the Sash Window Workshop having asked neighbours for recommendations and after having obtained quotes from 2 other companies. Replacing sash windows in a conservation area was never going to be cheap but given the number of new windows we were having installed we thought that the estimate for the work was pretty reasonable. From the initial survey right through to the installation the company were extremely efficient and helpful . Everything was delivered on time and to a very high standard . The window installers worked extremely hard and left everything clean and tidy . We are thrilled with our new windows and they definitely make the house a lot warmer and quieter . The new windows were installed in Oct 2023 and unfortunately on Feb 2024 we had an attempted break in, the intruders didn’t gain access but they did succeed in damaging one of the new sash windows , which fortunately was covered by our insurance. After some discussion the Sash Window Workshop said they were confident they could effectively repair the damage rather than having to make a new window which they did and the repaired window , looking as good as new , was reinstalled yesterday . Through the service has been really excellent and we would highly recommend the company to anyone looking to have new sash windows fitted .

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Customer in Surrey5.0 / 5

Our newly installed front door is fabulous! The whole experience from initial contact, preliminary design, survey & final installation has been excellent. The professional, helpful approach from everyone we have dealt with was exemplary and a credit to the company. The quality of products & standard of the installation work was exceptional in every detail & the finish was superb. We can only praise The Sash Window Workshop & would, without doubt, highly recommend the company to others.

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Customer in Berkshire4.7 / 5

I recently moved to a Victorian cottage with a rear kitchen/bathroom extension glazed with inappropriate UPVC windows and kitchen door. The Sash Window Workshop surveyed the existing window and door apertures and produced detailed specifications and costs which I immediately accepted. The sash windows and half glazed stable doors have now been installed, dramatically improving the rear aspect. Workmanship, communication and installation faultless. I am immensely pleased and recommend these guys wholeheartedly. Call them today!

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Customer in Surrey5.0 / 5

Our flat in the Kemp Town area of Brighton needed three inauthentic, rotting casement windows replacing with sash windows. The flat is in a Grade 1 listed building, so the design of the windows required planning permission. The planning officer specified that only single glazed windows would be acceptable and detailed drawings were needed to be submitted with the planning application. Sash Window Workshop were the only supplier of several I contacted that could provide plans for and manufacture single glazed windows. Their process was very transparent and thorough. Their staff were very friendly and polite. When it came to installation, Paul and the other members of the team did a simply terrific job – they were very efficient and the quality of their work was superb. The new windows are such a huge improvement on what we had before – we are delighted. Despite being single glazed, they have reduced the noise from the main road outside dramatically.

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Companies House registration

Active incorporated business

Active

The Sash Window Workshop Trading Ltd is linked to a Companies House entry. This shows the business registration, not evidence of workmanship or service quality.

Legal nameThe Sash Window Workshop Trading Ltd
Company number02897134
Incorporated
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Public evidence checks

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Public review evidence5.0★ from 33 public reviewsCompanies HouseWhich? Trusted Traders
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Strong signals
Rating: 5.0★
Review volume: 33
Source diversity: 2 sources
!Worth checking yourself
!Verification: Listed

Public evidence last checked May 2026

Good to know

Common questions about The Sash Window Workshop Trading Ltd

What do customers say about The Sash Window Workshop Trading Ltd?

The Sash Window Workshop Trading Ltd has 33 public reviews, averaging 5 out of 5, gathered across 2 independent sources. You can read the individual reviews and where each came from in the reviews section above.

How do I know The Sash Window Workshop Trading Ltd's reviews are genuine?

The Sash Window Workshop Trading Ltd's 33 public reviews are gathered and cross-checked across 2 independent public sources. Reviews spread across several named sources are harder to fake than a single polished page. MyTrustedTraders brings this public evidence together with no ads and no paid placement: we show where every review came from rather than selling rankings, so you can weigh the evidence for yourself.

Is The Sash Window Workshop Trading Ltd a registered business?

The Sash Window Workshop Trading Ltd is a registered business on Companies House (company number 02897134), incorporated 11 Feb 1994, listed as active. This confirms the legal registration of the business — not evidence of workmanship or service quality.

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