What Our Clients have to say

Fitting new windows in a Victorian house was a daunting project for my wife and I but we were pleasantly surprised by the excellent level of professionalism demonstrated by the team from Derwent Sash Windows.  As expected there were problems but nothing phased the fitting team who took everything in their stride, and left everything in excellent shape when they had finished. The windows themselves are excellent quality and have transformed the overall appearance of the house.I would have no reservations in recommending Derwent Sash Windows.

The owners are very clear and helpful in explaining what is available and understanding your requirements. The fitters themselves are helpful, polite and professional, doing an excellent job. I genuinely cannot think of any area for improvement apart from the price!

I’m very impressed with the quality of the doors, windows and french doors I ordered from Derwent Sash Windows. They look terrific and are set off beautifully by the pewter hardware. The high level of skill and workmanship of the team of fitters was evident immediately – they did some really lovely architrave work around the sash windows – and they were all courteous and very tidy.    The house now looks so much better with the new windows and is noticeably warmer too. When I finally get around to ’phase two’ of my window replacements, I will call Rob and Alistair again. There can be no higher recommendation.    Many thanks,   Emma Todd

Excellent Product Choice
Excellent Customer Service
Excellent Workmanship

Derwent fitted wooden sash windows into our Victoria House. We did not have all the windows replaced as we had renovated some ourselves, the quality and look of our new windows is amazing. They are an exact replica of the originals. We made a great choice when deciding to choose Derwent Sash Windows.

Our neighbours had used Derwent and told us how good they were.   They are the most reliable company I can recall dealing with, coming out when they said they would, and giving us a clear date for installation well in advance which they adhered to.   The quote came as a bit of a shock but after doing some research I realised I was getting a quality product which if we wanted we would have to pay for   We were on holiday when they did the installation but they contacted us to let us know of 2 leaking radiator pipes which were a result of my botched DIY attempt the previous week.   I couldn’t get hold of a plumber but they fixed them for us which was over and above what I’d expect of anyone.

We wanted to let you know how pleased we are with the new windows. We were impressed with how well they were fitted and the professional finish that the architraves give. We have been extremely pleased with the work you have provided from the outset. We would not hesitate to recommend you to anyone else contemplating replacing his or her windows.

May we extend our thanks to your workmen who worked efficiently and effectively without any fuss or bother to complete all of the work in one day, it is much appreciated.
Be assured you have another satisfied customer.

We are so happy with the windows! I have spent a very happy few minutes shutting and locking them for the night just now, and it gave such a warm sense of peace and security. Our builder Ivan is really impressed, and we’ve already been getting people asking him and us where they are from! And please thank your two guys, Mick and Andy,. They were really professional and very friendly and nice to have around

All I can say is WOW! We live in an old cottage and our walls aren’t easy to work with but the quality of the installation is amazing. I highly recommend having the internal architrave if you have sash windows as it finishes them perfectly. From start to finish Rob, Alistar and the guys were first class and the workmen were courteous and professional and very clean. Great stuff. Would recommend to a friend

We have a period farmhouse and needed to replace the old single glazed wooden sash windows. Derwent installed Bygone collection UPVC sash windows for us and we are really, really impressed with the windows. The proportions ensure that they look wooden and are in keeping with the property. The compliments from visitors have already started and people are surprised to find they are UPVC. Andy and the team were super. Hard working and also tidy workers, something I have learnt is not common place with workmen! The quality of the finish is very impressive, thank you!