Endorsed by Which?

Derwent Sash Windows Ltd t/a Derwent Windows and Doors

4.9

157 Reviews

Opening Hours
Today - 09:30–16:30
  • Monday 09:30–16:30
  • Tuesday 09:30–16:30
  • Wednesday 09:30–16:30
  • Thursday 09:30–16:30
  • Friday 09:30–16:30
  • Saturday 09:30–16:30
  • Sunday - Closed

Why you can trust this trader

After undergoing rigorous assessment to become endorsed, every Which? Trusted Trader agrees to our Code of Conduct. This gives consumers the reassurance that they have the best possible protection and adds an extra layer of security to ensure best practices and procedures are followed. Which? fully investigates any breaches and will take any necessary action to ensure consumer protection.

Organisations and Awards

Jan 2020

About

Welcome,
Your property is so much more than a house. It is normally your largest single asset, your pride and joy, but above all it is your home.

Here at Derwent Sash Windows, we carefully treat all installation projects with the same respect that they deserve, sympathetically restoring your property to its' original splendour.

Have a look at our portfolio of previous work to see the size and diversity of projects we have undertaken in the past and read our testimonial letters, to understand the level of skill and expertise my team deliver.

I look forward to hearing from you to discuss your project.

Yours faithfully

Rob Walters
Managing Director

Derwent Sash Windows Ltd.

www.derwentwindows.co.uk
www.derwentsashwindows.co.uk

What we do

  • Doors

    • Timber doors
    • Bi-fold doors
    • Patio doors
  • Double glazing

    • Double glazing installation
    • Double glazing suppliers
  • Conservatories

    • Hardwood conservatories and orangeries
  • More Services

    • timber alternative windows
    • timber windows
    • sash windows

Customer reviews

Why you can trust these reviews

All reviews are verified as being genuine and a true customer of this trader.

How can we be so sure?

100% of the reviews we publish have been through our stringent moderation process.

4.9
157 reviews
Customer Service
4.9
Quality
5.0
Value
4.9
Sort by
Excellent job. We got what we asked for. No problem.
Customer Service
Quality
Value
New French Doors fitted. They were there at 7.30 and finished by 10.00. We got home from work and the only way we could tell they had been, was the new doors. No mess that we could see at all. Good price comparing it to other quotes and we had a courtesy call a couple of weeks after the work to make sure we were happy with it. I have no problem recommending them and would be happy to use them in the future. Phil and Sharon, Ripley.
philandshaz Posted on 19/04/2018 , work completed 19/04/2018
New doors and windows
Customer Service
Quality
Value
Really pleased with the service and workmanship of Derwent Sash Windows Ltd. My new windows and doors look great. The fitters came on time and finished when they said they'd finish and were polite and helpful.
Ian Thompson Posted on 17/04/2018 , work completed 17/04/2018
Beautiful windows and doors
Customer Service
Quality
Value
I was absolutely delighted with my sash windows and 2 new doors for the renovation of my Victorian property. The whole end to end experience was a pleasure. Everyone at Derwent was so helpful and nothing was too much trouble. The finished work is beautiful and I've had so many compliments. Thank you so very much everyone. I would highly recommend Derwent.
Rachael Posted on 30/03/2018 , work completed 30/03/2018
Excellent service and great product
Customer Service
Quality
Value
Derwent Windows came when they said they would, they prepared each room in turn with thorough dust protection and worked in a brisk and professional manner. The staff were friendly, co-operative and extremely professional. The finished product looks very impressive and the sound and heat insulation is much better than the old and compromised original double glazing. They were not cheap but we felt they were well worth the money. Elizabeth
Elizabeth Posted on 19/03/2018 , work completed 19/03/2018
Excellent company- to be highly recommended!
Customer Service
Quality
Value
Derwent are not the cheapest company, but now I would use none other for windows and doors. The whole team are highly professional and nothing was too much trouble for any of them. This was apparent from the beginning to the end of my dealings with them- from my first visit to the lovely showroom, the visits from Alister and then Andrew, the surveyor, to the hardworking fitters themselves- all were great and Douggie was a star when he came back to fit my front door! The service from the office staff was equally good. I had Evolution flush windows and a timber door fitted at my home. I am absolutely thrilled with them and they look great. Additionally, the difference in sound reduction and heat retention is amazing. I have since had a front door fitted at another property and my tenant is thrilled with it too. I would highly recommend Derwent and if you are looking for good quality products, efficiently and professionally installed, you cannot go wrong with this company. Thank you all!
Pamdex Posted on 09/03/2018 , work completed 09/03/2018
Best backdoor ever
Customer Service
Quality
Value
We ordered our backdoor through Derwent Sash Windows. We didn't look elsewhere because visiting their showroom we knew that they would do a good job, at a reasonable price. It was evident from their customer service which was authentic and honest. Prior to the install, the measuring up was completed quickly and with friendly staff, and on the day of installation it was a joy to chat with such a great fitter. He did a perfect job in awful weather. I can't believe how clean the job was! We'll definitely get the rest of our windows and doors from here.
Ruth82 Posted on 14/02/2018 , work completed 14/02/2018
Replaced french and back doors
Customer Service
Quality
Value
After visiting the showroom, my partner and I were blown away with how professionally it is all set out, with first class personal customer service, with the team there listening to what we wanted as opposed to telling us what they could do ..... overall very impressed.... Which carry's on with the final fitted product. The fitters who installed really took attention to detail as their main objective ..... We are both very pleased, and will be having the windows installed by Derwent in 2018.. I can highly recommend Derwent Sash to anyone ....
andy robinson Posted on 07/12/2017 , work completed 07/12/2017
Outstanding products and fitting
Customer Service
Quality
Value
Absolutely delighted with our new sash windows from Derwent. The products are first class. The fitting team were brilliant, preparing each room with plastic sheeting before fitting. Outstanding service all round highly recommended.
Ian Watson Posted on 27/11/2017 , work completed 27/11/2017
All brilliant - windows, fitting and team
Customer Service
Quality
Value
From the first visit to their showroom right through to completion the whole process was professional, easy and surprisingly quick. The team who fitted our windows and doors were brilliant - so little mess, covering every room in plastic sheeting and vacuuming up each evening. The finishing little touches set them apart and the finish is beautiful. We are so pleased. They arranged a builder to knock two windows into one which went really well. The plastering and stonework is spot on, you'd never know there was two windows there before. Highly recommended. Thank you.
Gailo1 Posted on 15/11/2017 , work completed 15/11/2017
Great Service & Excellent Results
Customer Service
Quality
Value
We have had all the windows replaced in our house and Derwent provided excellent advice, high quality products and fitters who took great care - highly recommended.
Tony Mundin Posted on 26/09/2017 , work completed 26/09/2017
English door company doors
Customer Service
Quality
Value
We wanted two doors replacing with upvc that did not look plastic. DSW supplied and fitted them. They knew their products so we got exactly what we needed. Kept us informed on progress of the order and fitted them on the day they said. Workmen were very good, covered everything up and cleared up. Excellent job, just what you want. Always worth searching for a trusted trader.
Anonymous Posted on 05/09/2017 , work completed 05/09/2017
Great service
Customer Service
Quality
Value
We recently bought a house with some of the windows complete and want to finish them all. From the original quote through to the completion of the first window last week the process has been smooth and professional. the workmen were on time and the quality of their work, which included building work, was excellent. We'll be back soon as there are 6 more windows to go.
JS Rotherham Posted on 30/08/2017 , work completed 30/08/2017
Great new windows
Customer Service
Quality
Value
We've had four new windows in our post war semi detached house replaced with Evolution flush windows from Derwent and couldn't be more pleased. We didn't want that brilliant gloss look of what many people have have when they get new windows. We wanted the traditional style. And now they look great. We've had a number of complements. The window cleaner says they look like wood! Yes they were more expensive but they're worth it. All dealings with Derwent windows staff was professional, efficient but friendly. I must mention the fitters who were excellent. Punctual, hard working, ensured everything in the room was covered and cleaned up everything. We would use them again when we look to replace our downstairs windows. Would strongly recommend the company.
Blue Girl Posted on 08/08/2017 , work completed 08/08/2017
Very professional company!
Customer Service
Quality
Value
We've had three sash windows replaced and new porch doors fitted by Derwent and we could not have been more pleased by the quality of the work or by the ease of the process. The quality of the workmanship was matched only by the professional manner in which the order was managed from initial contact, through various revisions to plans, to the actual fitting itself. They are not the cheapest but still very competitive given the quality of product and service they offer. We would recommend Derwent very highly.
Gregson Posted on 18/06/2017 , work completed 18/06/2017
Excellent
Customer Service
Quality
Value
I have used DSW to fit windows and doors on two Victorian properties. The products are of very high quality and the service is excellent. The windows were sensitively designed to fit the buildings ensuring a like for like finish. The fitters were polite and professional and work was completed with the minimum of disruption. I wholeheartedly recommend this company.
Sandra Posted on 07/05/2017 , work completed 07/05/2017
Excellent service and top class product
Customer Service
Quality
Value
We are very impressed with the professional service of all the staff involved with this company. They have carried out an encapsulation of our old stain glass long stairwell window. The job was carried out in an excellent manner from start to finish. Would definitely recommend this company to anyone wanting a top notch job done by first rate staff.
tony Posted on 12/04/2017 , work completed 12/04/2017
Friendly and professional
Customer Service
Quality
Value
Really professional company including the surveyors, office staff and installation team. Order to installation was only a few weeks and we're really happy with the work
Viccyn Posted on 13/02/2017 , work completed 13/02/2017
An excelent job start to finish!
Customer Service
Quality
Value
We have just had Derwent Sash Windows replace all the doors and windows on our barn. Everything was first class from the product to the fitters who were very respectful of our home and attention to detail was exemplary Very highly recommended. Thanks Lads Geoff and Diane
Geoff Posted on 26/01/2017 , work completed 26/01/2017
Gorgeous windows and doors expertly fitted
Customer Service
Quality
Value
Everything about having our new doors and sash windows fitted has been perfect. Right from the first visit to the showroom everyone has been really friendly and knowledgeable. The final fitted products look amazing and have been put in without any mess leftover (I've never known such tidy tradesmen). The guys have done a really good job and we couldn't be more pleased with how it all looks. Totally recommended from start to finish.
George R Posted on 25/11/2016 , work completed 25/11/2016
Great team.
Customer Service
Quality
Value
A brilliant job from start to finish from the whole team. Everyone worked very hard to give us the service and product we required.The attention to detail excellent. Thank you all very much. Highly recommended.
Pete and Brigitte Posted on 23/11/2016 , work completed 23/11/2016
A professional job from start to finish
Customer Service
Quality
Value
We are delighted with our new Solidor. From the start of the process to the end we have found Derwent Sash Windows to be an excellent company which has provided us with a very good service. They were able to be flexible when finding a time for installation and Dougie did a spotless job of fitting the door. We would recommend this company without hesitation.
JJJohnson Posted on 10/10/2016 , work completed 10/10/2016
Quality Windows, and excellent fitting
Customer Service
Quality
Value
We ordered 2 new wooden sliding sash windows to replace some which were badly made about 7 years ago by a local joiner, and also a fixed window which was rotten. We went to the showroom and looked at the windows which seemed to be good quality, and placed our order. The fitters came on the planned date, and even though we had cleared the area and put down dust sheets, they covered everything. The windows were fitted and finished in a day, they were very organised and tidy, and friendly. I would have no hesitation using Derwent Sash Windows again. We know that the 4 large sash windows on the front of our house will need replacing!
Spike J Posted on 07/10/2016 , work completed 07/10/2016
Excellent Quality and service
Customer Service
Quality
Value
We have used Derwent Sash Windows to replace all our original Sash windows, and their quality of work, product and service was excellent. The windows themselves look amazing and feel really substantial. The fitters not only did a great job putting the windows in, but they also left everything really tidy, the mess was cleaned up - unlike other tradesman we have had in - we cannot fault them on any level. These windows have been worth every penny, we highly recommend them.
LouiseW Posted on 16/08/2016 , work completed 16/08/2016
Excellent products and service
Customer Service
Quality
Value
A good experience from the initial visit to their excellent showroom, through the measuring and fitting. By no means the cheapest, but the windows are the best that I have seen, and the only ones which suit our old house. Widows look to be well made, it remains to be seen how they stand up to the weather since they were only fitted today, however, I have no reason whatever to doubt them.
2011-08-01 17:21:12.17 Posted on 01/08/2016 , work completed 01/08/2016
Highly Satisfied
Customer Service
Quality
Value
We are very pleased with the installation of Evolution Storm windows. We followed Jan and Rob's advice on some of the detailing and the windows look great inside and out. The finish is spot on and the fitting team were tidy, efficient and cheerful. Thank you!
Brian Swift Posted on 19/06/2016 , work completed 19/06/2016