What Our Clients have to say

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

Once again Rob, Alistair and their excellent workmen have come up trumps! We cannot praise them enough.    This time we had twenty two sash windows replaced, the first time it was twenty. The installation was completed with the absolute minimum of fuss and disruption.    From our first contact to book the work to the last squirt of sealant everything was done to perfection. The lads on site were cheerful, polite and expert at what they did. By the end they felt like part of our family!   Many thanks to all concerned.    Never mind recommending this company to friends we would insist they use you!! Would recommend to a friend

We had work done in two stages; the first was the front of the house. Derwent Sash Windows rebuilt the bay and installed windows and new front door. Although it was a major undertaking the work was carried out with professionalism and care. Each night all those on site were careful to clean up after themselves to minimise the disruption. The windows were better than we had hoped, and many people we didn’t know stopped by to admire them. We had the back of the house done 10 months later and are absolutely thrilled with the transformation as new stone sills and lintels have also also installed. The standard of craftsmanship is second to none, and with a completely different crew we found the same outstanding quality of professionalism, courtesy and pride in their work. The quality of the windows and doors are superb so we would recommend the company and their product to anyone seeking to replace or reinstall sash windows.

I would just like to say how pleased we are with are windows from Derwent’s.   They were really helpful with choosing and advising us on their products and the build time required and kept us informed right up until the installation date.   The team that ran the installations are professional and really knew what they were doing, which helped when we had a couple of problems with historic movement.   The finish is excellent and the windows look fantastic. Now it’s up to me to make sure the decorating and furnishings match up to them!   Thank’s once again.   Mark Dudley

Really happy with the finished product, the fitting team were great. The windows fitted perfectly and there was no mess at all.

We had Bygone upvc sash windows fitted. Initial enquiries were handled efficiently by email and we received full itemised details of our request with costings. The owner made us aware of all the options available and gave good advice on choosing a cill. The fitting was done very professionally: a small area of &,039;making good&,039; was missed but a return visit to sort this Jaeger-Lecoultre replica out was arranged with no hassle. Bygone windows are very expensive but we love the result and the price was about what we expected based on previous experience with another company.

Rob and Alistair are very friendly, helpful and knowledgeable. The quality of the windows and the fitting service is excellent. The joinery work on the reveal linings and architraves is superb. The attention to detail, care of our home and cleanliness is first class. We highly recommend Derwent Sash Windows and would never use anyone else. Karen and Steve Barnett

Dear Rob & Family, A happy Christmas and all the best for 2012. We would appreciate it if you would please pass on our thanks to Mark, Mick, Andy and Jason,  for a job well done. Best wishes Mr & Mrs Jackson, East Markham

Thank you for the excellent work.

The sash windows are fantastic. We have had loads of positive comments. Regards