London Box Sash Windows Ltd

We recently had our sash windows installed by the London Box Sash Window Company, and the whole experience was excellent. Anjelo and Raf, the installation team were respectful, professional, and did a wonderful job. Jake who looked after us on the sales side, was helpful and knowledgeable, Judith kept it all organised. The sash windows themselves look absolutely beautiful and have completely transformed the appearance of the house. We've had a number of compliments from people passing by, which speaks for itself.

I would never use another company other than London Box Sash. Having used them for many years on many projects, i can safely say you are in good hands. From the initial consultation to the final fit, everything is smooth and professional. The fitting is exemplary and the result is perfection. In my mind no one does wood windows like this company and the workmanship and quality of the product is second to none. I would never hesitate in recommending them and whilst they may be a little more expensive than other suppliers and fitters, rest assured it is because their products are superior. Another major feature of their windows is the quality and longevity of their paint and wood choice they use. My original windows are well over 10 years old. No cracking of the wood or paint and they look brand new, just like the day they were fitted.

I had two windows replaced - I was impressed by the workmanship and expertise of the fitters but also the p sales, planning /measuring and advice I was given including the office support customer service and care . The windows look wonderful and work extremely well. I would recommend this company to anyone considering replacing their sash windows with double glazed wooden windows. They are a company to be trusted.

I have used London Box Sash Windows Ltd over the last few years for upgrading nearly all the windows in my house and wouldn't go anywhere else. I have also passed them on to friends and family, all of whom have been just as satisfied. Their work is first class and they are professional, polite, hard working, clean and tidy.

We have used London Box Sash Windows twice. The sales team are easy to contact, clear about the process and prices and helpful in answering follow up questions. The window fitter, who has done both jobs, has always been punctual, friendly, efficient and highly skilled at his job. The quality of the sash windows is amazing- they look brilliant and have improved the heat retention and light in every room. We would not hesitate to use them.

I found London Box through Trusted Traders and was so glad that we chose them to replace a bathroom window in 2025 following it being damaged through an attempted break-in. We were so impressed with the service given by the company through the assessment visit by Simon, the contact and support through the office of the lovely Judith and the amazing work done in a single day by the wonderful Andy to replace the window. He worked tirelessly all day and cleaned and tidied up beautifully afterwards. Because of their impressive service installing this window, we employed them to replace the bay windows on our house which was a much bigger and more complicated job because of issues to do with the state of the bay itself but London Box were more than up to it. This time Harry came to measure up and Judith in the office continued to keep us informed and up to date with the process. Angelo and Raf did a fantastic job on the day of installing the new windows. It was a very difficult job but they did amazingly well and we couldn’t be happier with the windows as well as with every aspect of our involvement with the company. Would thoroughly recommend this company and not hesitate to use them again in future.

The work to replace our windows in the dining room and a bedroom, was to a high standard in accordance with the agreed schedule. The tradesperson arrived on time, on the designated dates. He then undertook the work quickly and efficiently, with minimal noise. Plus, the areas of our home where the windows were replaced, were cleared and tidied following the completion of the work. Judith was helpful in the progression of the job. She also followed up after the job had been completed, to gauge our satisfaction with the work.

The marvellous Andy did a great job . So charming, efficient , neat and professional. Can’t believe how he did it all in one day ! Taking out our rotted window and putting in the new one in our awkwardly placed room. He protected all my shelves of delicate things and covered floor and carpets most efficiently. The new window looks fantastic and He cleared up so well You wouldn’t have known he had been. Thank you very much . We couldn’t be more pleased . Worth every penny.

I used London box sash windows company for a third time. This time they installed my kitchen window. They are incredibly professional, the window specs were bespoke as i wanted all the details to be as the originals, they were the cheapest i could find using accoya wood, very polite, very skilled craftsmanship. The windows are spotless, they covered all areas before works so no there was no dust, they even hoovered and cleaned up after they left. In every stage from initial visit, to communication, they were very professional, whenever i called they always answered my calls. The last two times i didn’t even look for other companies to use. Great experience and lovely great quality windows, with quick installation. Thank you so much!

The job was perfect. The windows look amazing . All the people in the who worked at box sash windows have been professional and also delightful. It’s been such a pleasure to work with them