London Box Sash Windows Ltd

Patrick, Jack and the entire team were simply fantastic. From the off they were incredibly helpful and this carried through the fitting and now 5 years later their level of service is simply unparalleled to any other company I have dealt with. The quality of the work is fantastic and the sash windows are marvellous. We often get compliments from walkers passing by. I cannot recommend London Box Sash Windows more highly. You will be in safe hands with a wonderful family run team.

This is the second time I have used this company and my experience was just as good. The quality and finish on the bedroom door and windows I had installed was perfect, and as before the installation was well organized, painless, and quick. The company is a family style business and they are extra friendly. Also, nice to know manufacturing is done locally. 109% recommend.

We have had three beautiful sash windows made and installed by this exceptional company! From beginning to end their professionalism was five star. Simon who first came to the house and talked us through the process and showed us what we could have was so personable, intelligent, and passionate about the product, the service, the company and what he does. We tend to ask a lot of questions and he was so patient in his answering everything. Even the various phone calls after his visit. Solid. Harry, the surveyor was similar. Cheerful, thorough and willing to answer all the detailed questions. Anjelo and Rafal our two installers, were a delight! So punctual, friendly, hardworking, immaculate in the clean up. It was a lovely day having them here! And in the office, Judith and Jack once again helpful, efficient, and always cheerful. And how nice to be able to phone and get a live person who is like that. This family business can very proud of the high quality of product and people that they have brought together. Bravo! Sincerely, from Carol and Philip

From our initial enquiry onwards, every aspect of getting our three new windows went smoothly. The estimator, surveyor and fitter were all caring, polite and efficient (as was the accounts manager who I only spoke to on the phone). Every effort was made to cause as little disruption as possible and protect to our rooms, carpets and furniture before work began. This work proceeded at a pace and by the end of day one (of three) two windows were already fitted. The windows are beautiful, bespoke made in the LBSC. factory but the architraves are cut on site by the fitter so perfectly fit each window. We got cheaper quotes but are so pleased we chose London Box Sash Windows Ltd. The professionalism, care and quality of the windows are brilliant. Thankyou to other Which Trusted Traders reviewers who helped us make the choice.

This is the second time we have used The London Box Sash Company. The first time was about two years ago. On both occasions they did a superb job with the fitting of new very high quality windows. The sound reduction has been remarkable. The property is a rented property and communications between us, the tenants and company and workmen were excellent, with quick and positive responses to any queries. From the survey they were able to give extremely helpful and knowledgeable advice for which we were very grateful. As a result we were able to make informed decisions at our own pace. They are, in fact, a pleasure to deal with. The schedule was adhered to strictly and to everyone's satisfaction. In short, I have no hesitation in highly recommending this excellent firm.

LBSW recently fitted 2 new double glazed box sash windows in our Victorian house. As we live on a busy road we opted for the acoustic glass in the front of the double glazed unit. We can really tell the difference already in terms of sound proofing. The windows are beautifully made. The fitter Andy was very professional. He kept everything clean and tidy and went the extra mile in making sure the details were right. All in all, a smooth experience from start to finish with good communication all along. I highly recommend.

London Box Sash Windows just completed the installation of our new, double glazed windows across our mid-terraced Victorian house. We couldn't be happier with the experience, from start to finish. Jake took a lot of time during the initial consultation, explaining the options available and impact on costs. We had four quotes in the end, roughly in the same price range and decided to go with LBSW due to their professionalism and responsiveness. Harry did the technical inspection pre-installation and Judith kept us updated throughout the process. At the scheduled day of installation, Audris arrived punctually (on the minute!) and his and David's work was spotless. They both worked extremely hard, precise and left every room they worked in tidy (we didn't have to do any cleaning ourselves!). Within a week, all our windows were done, in line with the promised timeline. We could really trust the team and go about our lives and just leave them with a key, which is a great feeling. Also, there was much less redecoration needed than we feared, thanks to the team's careful way of working. Choosing a firm to work with for new windows was a big decision for us, and I can only recommend LSBW. Our house is much warmer, quieter and with no more annoying draughts, we don't regret the investment for a second.

For some time we have been working towards replacing some sash windows in our large mid-Victorian semi-detached house so as to reduce draft, make some rooms warmer, make window opening easier and hopefully safe some energy cost. After visits by several companies, it was clear from the start that LBS offered a more personalised service and listened more carefully to what we actually wanted. They were the only company to offer sash-only replacement and the only one to point out that full frame replacement would cause problems where the window frame was integrated with shutters and a plaster cornice. All the pre-installation contact was great, with a very detailed on-site discussion of all the different options. A very detailed specification/estimate was sent for checking, and then a second survey by the fitting expert to iron out the last few potential glitches. The two fitters were brilliant, changing 8 windows in 4 days, arriving promptly for a 7.30am start, and meticulously clearing up dust and rubbish to leave the house in a very good state each day. On the final evening we immediately noticed the reduction in noise and draught, and the increased warmth. We would not hesitate to use LBS again and to recommend them to others. High quality full replacement of sash windows is not cheap, but we feel that we have installed an excellent product that has greatly enhanced the comfort of our home, that will last for many years, and that has increased its eventual sale value.

We have used London Box Sash 4 times - and their service levels have been superb each time. Great product, installed on time, everything left tidy. But best of all, our house is warmer and quieter thanks to the double glazing.

Very high quality windows. They make a massive insulation/ sound difference. The company is properly professional and easy to deal with. That is all great. The prompt to leave a review is however Audrius, a gentle mountain of an impressive craftsman, who did all the work so carefully and so swiftly. Bravo.

Having originally wanted one replacement sash window, we were so impressed with the quality of the one we ordered, we went on to order four more. The build quality , insulation and acoustic properties are excellent, and the style fits perfectly into our early Edwardian house. The service was always courteous, communication precise and regular, and the fitting itself carried out with great care and consideration. We are delighted with the windows, which have made a huge difference to our previously draughty home.

Got 4 windows installed by these guys almost 5 years ago. Needed two more windows but unfortunately they don't do these kind of windows anymore so I ordered somewhere. And now I can truly see difference between great windows installed by London Box Sash Windows and windows installed by someone else.

I had all of our front windows replaced with London Boxsash wooden sash windows and couldn't be more delighted. The window demonstration was really informative and I could tell from the start that the windows were far superior to any others I'd seen. The booking process was very smooth and the installation team were by far the most professional, fast and tidy I've ever witnessed. This isn't a cheap product but represents superb value for money. Thank you

From initial contact to completion everything for my new box sash window installation was a great customer experience. In fact the whole thing was enjoyable, stress free and the windows are fantastic.

We used London Box Sash a few years ago for our London flat and despite having since left London we recently decided to use them again to replace some original sash windows in our new house after having such a great experience previously. I’m delighted to say that their quality and craftsmanship has remained exceptional. The quality of their product is second to none, their windows are genuinely fantastic. Everything is very clearly explained upfront by the team (Jake, Harry and Judith are all fantastic) and their fitters are so courteous and thorough. Raf was our fitter this time around and he was so knowledgable and friendly. We honestly cannot recommend them enough.

We had a loft extension with double dormer mansard windows fitted about 10 years ago. The timber windows windows did not last very well and we were looking to replace them. I came across London Box Sash Windows work on a house where my company Complete Kitchens ( a fellow Which Trusted Trader member ) was fitting a kitchen. The customer happily gave me their contact details and after submitting drawing to them for provisional costings we arranged for Patrick to come along and do a full survey and provide final costings. We opted for the 50 year guaranteed hard wood sash windows, which although not a cheap product we wanted something that would stand the test of time. Because we already had a scaffold in place and we’re paying rent on the scaffold the team at London BoxSash even fitted us in earlier than expected which was a great help. We are very pleased with the end product and their friendly and expert fitters . Nothing was too much trouble . We would have no hesitation in recommending them to friends, family or future clients. A great job by a great company. Thank you London BoxSash.

The London Box Sash Window company were fantastic they fitted two sash windows and one small casement window to my house. From start to finish they were so professional and friendly, Judith in the office was excellent, Harry who carried out the survey was so knowledgeable and fitted the installations around our schedule. The actual fitters were real crafts men. The windows are beautiful.

We decided to replace all the sash windows in our drafty Victorian house to improve insulation and thus reduce energy use. As it was a significant financial investment for us, we researched it thoroughly and London Box Sash came out as front runners. We are delighted we went with them. From start to finish, their service was highly professional and completely reliable. All of the staff from sales to installation were courteous and a pleasure to deal with. They explained the process fully and there were no nasty surprises. The installation team were amazing. They replaced 13 separate sashes in just four days. The windows look and feel very smart. Our house immediately feels warmer. We can now turn the heating off completely during the day. The degree of sound insulation is an unexpected pleasure too. I would definitely recommend this company.

We were recommended London Box Sash Window Company by our next-door neighbour and what a recommendation. The whole process from start to finish was excellent and the estimating installing and payment process was first class. The two large sash windows installed in our 1904 Edwardian house are very good indeed and the panes move up and down so smoothly and effortlessly. Already notice a huge difference in heat retention and noise attenuation. What more can I say except to mention our installer who single-handed put up and took down the huge dust curtains, set up a small workshop and in between installed the box sashes and touched up the paintwork. He worked a hugely long day but was always courteous - an amazingly skilful and conscientious technician. I highly recommend this company and their product. You will not be disappointed.

We are in the process of ‘future-proofing’ our home - let’s face it, with the rising cost of utilities, this is fast becoming a priority. We live in a flat in an old Victorian house with large, single-glazed, sash windows, several of which needed replacing, but deciding what with, was always going to be tricky; plastic windows would obviously be cheaper, but wouldn’t be in keeping with the house and so we looked around at who was making wood sash windows. There is no doubt that this is an expensive route to take, but given how long they last once they’re in, to not do it right first time seemed a false economy. We have so far replaced two windows with TBSW company and you really do get what you pay for; from the start and our first contact with them, we felt confident that we were dealing with people who knew what they were talking about, cared about what they did and were hugely positive about their product and justifiably - the windows are superb. Large, double glazed units that immediately cut the heat loss and sound from the outside and because of the perfectly balanced weights, can be raised and lowered with finger-tip control. The finish is beautiful and totally in keeping with the house. The care and precision with which their fitters worked - the place was spotless when they left - belies the amount of work involved and all the work is guaranteed. It has been a pleasure dealing with them.

I knew my windows and French Doors needed replacing to halt water penetration but the thought of work and mess of 2 large bay windows and doors being replaced filled me with dread. It need not have. From the initial measuring up, quote and work being carried out, the process was smooth. More so the work itself. There were no issues with the windows actually fitting and the installers were incredibly professional and efficient. My only job was coffee making and glad to do it. Plus the materials are first class. If you need this type of work done, seriously consider London Box Sash.

This is now the second time I have purchased windows from London Box Sash. The first window was two years ago and it still looks brand new. The service from London Box Sash is one of the best customer service experiences I have received. The quality of the product is also better than anything else out there on the market. The windows that we chose are Accoya timber, double glazed windows. Which were to replace our single glazed drafty original windows. We wanted to keep the character of the Victorian property but update to energy efficient windows. I would definitely recommend London Box Sash, you won’t be disappointed. Thanks

London Box Sash Windows replaced 6 single glazed windows in our Victorian terrace in Herne Hill with new double glazed wooden sash windows. They were the most competitive and transparent of the 3 quotes we got and the whole process was seamless from start to finish. From the initial visit from Jake, through the booking and billing process with Judith, we were impressed with their prompt responses and helpful attitude. The lead time we were given was spot on and, once we were given a date for the work to start, this did not slip. Audrius, who carried out the work, was hardworking, punctual, efficient and left the house spotless each evening. We couldn’t believe the quality of his work. We barely needed any touching up work from the decorator we had booked to help us afterwards. 6 windows were replaced and decorated in only 4 days, with minimum mess and disruption. Our house is now smarter, quieter and noticeably warmer.

'London Box Sash Windows Ltd.' clearly stood out as the obvious choice out of a number of other candidate companies for the replacement of three single glazed sash windows with new double glazed ones, in a four storey Georgian property within the London East Canonbury conservation area, in terms of the high quality of materials used, the great safety design features employed, the excellent guarantees offered and their very competitive pricing. The manufacturing waiting time was as planned and the installation was perfect. Overall excellent!

I can only echo all the favourable comments in the other reviews for London Box Sash Windows. Our job was a replacement of sash windows and French doors at the rear of the house in Belsize Park (built-in 1860), including two very large windows (ceiling height is 12ft 6 inches). The job was done super efficiently in only two and a half days with the guys arriving on the dot each day. The finished result is immaculate and an exact copy of the old original sash windows. During the job the working area was fully isolated by a polythene 'tent' - so no dust spreading everywhere and all left neat and tidy each day. Thanks also to the friendly office staff and the original estimator - very easy to deal with. So, overall full marks - we're looking forward to a much cosier winter!