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Client testimonials

Refurbishment of Sash Windows

Delighted with our recently revamped sash windows, only wish I’d done it years ago. From the original quote to the work itself, the team were friendly, efficient and knowledgeable. A pleasure to deal with.

Customer in Hammersmith, W6

Replacement of Sash Windows With Like For Like Double Glazed Windows

We are thrilled with the work SashWise have done. They restored our sash windows with double glazed equivalents. Throughout the work they were professional, friendly and did everything to the highest standard. A special thanks for also touching up the seals on our other windows that had previously been installed by another company. I would 100% recommend SashWise and use them again in the future.

Customer in Chiswick, W4

New Windows in the Original Victorian style

Dan, Melissa and the installation team were excellent; very knowledgeable and prompt communication. The windows themselves are beautifully made and exactly as discussed if not better! I would not hesitate to recommend SashWise to friends and family.

Customer in Chiswick, W4

Replacing Original Sashes

We had the rear 5 upstairs weather facing window sashes replaced, along with 3 rotting sills. Our fitter was punctual, efficient, and tidy. The custom made double glazed sashes are an excellent fit, and all in all it is a big improvement. Quality work. We would use SashWise again.

Customer in Ealing, W7

3 hardwood box sash windows with acoustic glass

Outstanding craftmanship. Installed on schedule and fitted perfectly in the bay. The finish and look could not be better. I will be a return customer with a view to replacing other windows in the house. The sound dampening effect of the acoustic glass is very noticeable, as is the warmth of the room which has markedly improved on cold days. SashWise have been a pleasure to deal with and get an overall 10 out 10 from me.

Customer in Twickenham, TW11

Sash window refurbishment

Right from the initial contact and quote to final invoicing, Dan and the team at SashWise have been extremely professional very helpful. We are very pleased with the work completed.

Customer in Twickenham, TW1

Restoration of sash windows

The work carried out by Dan was very professional, efficient and was completed in five days. Gary did a great job painting and helped Dan on some of the restoration work. As a company I would have no hesitation in recommending SashWise Ltd.

Customer in Merton, SW19

Restoration of 11 casement windows with double-glazed units

Dan and his team were amazing from start to finish. They were polite and tidy and worked incredibly hard. The windows look amazing, and I am really pleased with the finished product and would highly recommend them and will certainly use them again.

Customer in Surbiton, KT6

Sash glazing replacement W5

SashWise did a fantastic job replacing our wooden sash windows. The team were great to work with, very professional and respectful, and the windows and finish are superb. I would happily recommend to anyone.

Customer in Ealing W5

Replacement of three windows

Excellent work all round, beautiful windows, expertly fitted and made, I would definitely use again and very likely will.

Customer in Twickenham TW1

Double glazing, KT2

Sashwise did a great job removing my Edwardian windows and installing double glazing that kept the character nicely. The craftsmanship was excellent and the workmen extremely polite and helpful. Very satisfied indeed.

Complete renovation of 3 sash windows

Made our decrepit rear sash windows literally as good as new for a lot less than new! Wouldn’t hesitate to recommend.

Customer in Berrylands, KT5

Replacement of 5 sash windows to fit double glazing, TW7

We are extremely pleased with our new windows. They have been built to exactly matched the old Victorian ones and fit in the existing (restored) frame, allowing a smooth installation with no damage to the wall/decoration. The installer was unfailingly polite and friendly and took great care to tidy up every night. We recommend.

Servicing and draught-proofing of sash windows, KT2

Excellent work. Dan came round to quote one evening and gave us a thorough run down of what would be needed and promptly sent the quote through. Hard working when they came to do the work and very pleased with the results.

Double glazing fitted to 4 sash windows

We are extremely pleased with the work carried out. The windows look good and are draught-proof. The contractor, Barrie, went to considerable trouble to cause as little disruption as possible and was unfailingly polite and considerate.

Replacing sash windows with new double glazed units and refurbishing frames

Such a great outfit to deal with. Melissa coordinating was responsive and helpful and the work that Dan did was outstanding. Very punctual, efficient and tidy and got all the work done in just a few days. Massively pleased with the work done – much quieter with the double glazing and looks great. The neighbours are jealous! Thanks very much and highly recommended.

Replacing sash windows and refurbishing the boxes

Excellent service and work from start to finish. Dan was very clear in what he recommended, the quote was detailed and accurate, the work started exactly on time and finished earlier than expected. Dan, Barrie and Zac were excellent, tidy and friendly. They were always on time and worked hard throughout the day. My neighbours were not disturbed, and were complimentary about them. I am delighted with the sash windows.

Window refurbishment (2 windows and a bay window)

SashWise were excellent, considering how much work needed to be done and the fact that we were also there – the team were friendly, discrete and tidy and the windows look great – they no longer rattle and actually close! Would high recommend them and would happily use them again.

Replacing 3 Windows

We are very happy with the work Sashwise did for us and would happily use them again.

Sash refurbishment

Sashwise have proved to be a highly professional company. The operatives showed great respect for the property, they were unobtrusive and worked to a high standard. The site was left clean and tidy.

Sash Refurbishment

Sashwise have proved to be a highly professional company. The operatives showed great respect for the property, they were unobtrusive and worked to a high standard. The site was left clean and tidy.

Sash window replacement customer

I was extremely happy with the work carried out by Sashwise. The team was highly punctual, efficient, scrupulously tidy, and above all else they seem to be very pleasant people.

Installation of double glazed sash windows

Fantastic work on site from Dan and Zach from initial quote to finished product. Very clean and professional. The admin team was very good at getting in touch for scheduling and answering questions I had. I would definitely use SashWise again.

Replacement sash windows

I would highly recommend SashWise. Dan was great when he came to measure up and explained everything clearly. Tim completed the work to a very high standard. My flat was left very tidy afterwards. My new windows are fabulous. They look just like the original sash windows, but it is now so much quieter and I have no drafts.

Replacing old timber sash windows with new timber double glazed windows

SashWise replaced the majority of the timber sash windows in my house. I hired SashWise ten years ago to replace some windows in my previous house. They are excellent, I couldn’t recommend them more highly. They work quickly and cleanly with minimal fuss and I received my windows earlier then I expected. The results are remarkable, the rooms and definitely far warmer and the windows are top quality and look beautiful. Even my neighbour complimented them!

Installation of new double glazed sash windows

From Dan’s first visit, to spec and price the work, right through to the completion of the install, SashWise were excellent. Delighted with their professionalism throughout and the new windows. Would recommend SashWise without hesitation.

Replacement of original single glazed sash windows for traditional style wooden double glazed.

From the initial meeting with Dan, who advised and quoted, to the communications with Melissa and then the work carried out by Barrie, the honesty, professionalism and friendliness from all was clear to see. The quality of the replacement windows, craftsmanship and fitting is extremely impressive. We now have new windows in keeping with the period style of the property, which are beautiful to look at, smooth to open and shut; and warm! A faultless service and for the exact price that was originally quoted. Will use SashWise Ltd. Again without hesitation.

Servicing two sash windows painted shut

The SashWise team was very helpful from the start. Melissa gave me a really good understanding of my options and prices. Dan did the site inspection and was good at explaining the work. And finally Barrie did the servicing on the day and his work was very thorough and clean. Overall, I was very happy with the result. Definitely recommend them.

New double glazed casement windows

Excellent service, workmanship and professionalism – I am very happy and impressed with my new windows. Each day, the team turned up on time, did the work without any qualms, and cleaned up afterwards. Melissa and Dan were very efficient and professional in getting back promptly with any queries. Would totally recommend Sashwise without any hesitation!

Windows refurbished on front elevation

The whole experience from initial telephone enquiry with the office to the final conversation on site was excellent. I was fully informed what was happening when at all stages of the work and we are very happy with the final product. Melissa and Dan were the main contacts and were brilliant both very professional and friendly. We would recommend Sashwise and use them again.

Sash windows refurbished

I was very pleased with the work carried out. Dan was polite and tidy& worked hard. The windows now look great, no drafts and open and close easily.

Full refurbishment of 7 sash windows

All interactions with the Sashwise team have been excellent from start to finish, highly efficient and clear communication throughout. The quality of work is excellent, the rather shabby box and sash windows now look like new. During the work on site, the team made every effort to minimize dust and disruption. Co-ordination of estimate, program and invoicing by Melissa, super efficient and very friendly.

New and refurbished sash windows

A great experience, and an exceptional team effort. From Mellissa in the office, friendly helpful, knowledgeable, and keeping us informed through the whole process. Dan the owner involved and passionate about his product and service. The craftsman/fitters who delivered the service and fulfilled all the promises made during the process. It is refreshing in this day and age to find such a company who have been a joy to be customers of.

New sash windows

Thank you very much and I am very delighted with the works you have done. Your team, was very helpful from the beginning until the end of the works. The fitters, Dan and Tim were very skilled, professional, hard working and very polite. The quality of the workmanship was excellent! Excellent service, product and installation. Very pleased with the final result. Strongly recommended.

Serviced and repaired sash windows

I was incredibly impressed by the quality of work and professionalism demonstrated throughout the process. Some of our windows needed significant repair and everything was handled expertly without signs of breaking a sweat. I would trust them implicitly to do a flawless job again in the future.

Three new sash windows fitted

The windows are amazing! The men left everything clean and the workmanship is incredible. Our house is very old so I was concerned there might be issues with the fitting but no, they’re perfect! Would highly recommend Sashwise to everyone.

4 sash windows refurbished and draught proofed

I can not recommend this firm highly enough! They were one of the first to come out, at the end of lockdown, to quote. They explained what would need doing to my windows, and agreed a date within a month and completed the work. My Victorian sash windows let in draughts and did not stay open once lifted, without a wedge. Tim who carried out the work was punctual and incredibly tidy, and has done an amazing job, leaving my room quieter and warmer.

New sash windows for bay window

We were so pleased with our sash window, it looks great and works beautifully. Barry worked hard and cleared up really well at the end of each day. We would thoroughly recommend the company.