Endorsed by Which?

Derwent Sash Windows Ltd t/a Derwent Windows and Doors

4.9

140 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
140 reviews
Customer Service
4.9
Quality
4.9
Value
4.8
Sort by
Replacement of sash windows in bay window
Customer Service
Quality
Value
The whole end to end experience of using Derwent windows was excellent, from initial site visit, to survey, to installation. The fitters (Ian and Ben) were friendly, and thoroughly professional, explaining what would happen and when. They were a pleasure to do business with and the new windows are absolutely superb. I would wholeheartedly recommend the company.
Customer in Derby Posted on 10/12/2024 , work completed 05/12/2024
Product and installation both exceptional quality
Great company to do business with. End-to-end team were courteous, helpful and great asset to their employers. The quality of the product is exceptional and the installation team were outstanding.
Customer in Derbyshire Posted on 04/12/2024 (Reviewer did not use service)
Sash window installation
Customer Service
Quality
Value
First time we have used Derwent Windows and they were excellent from start to finish. We had two wooden sash windows installed to match the rest of the windows in our house. The fitters were prompt, polite and did a very professional job. They kept us informed throughout the fitting, regularly checking with us to make sure we were happy with progress and at the end made sure that everything was clean and tidy and to our satisfaction. We would definitely use them again and in fact I have just recommended them to a neighbour who saw our new windows and was very impressed
Customer in Derbyshire Posted on 25/11/2024 , work completed 20/11/2024
New door
Customer Service
Quality
Value
I have used Derwent Windows in the past and was pleased with the work they did, so when I needed a new door I was happy to go back. As before they were punctual and did a good job. I am happy I went back to them.
Customer in Derbyshire Posted on 18/11/2024 , work completed 13/11/2024
Damaged product during installation with 18+ months of remedial work leading to getting Which? Trusted Traders involved.
Customer Service
Quality
Value
In my opinion, Derwent Windows ultimately decided to prioritise their own profit over doing the right thing by their customer. Only after damage started to occur was I told that either “damage is normal during an installation” or that the product I had chosen was “easily marked or damaged”. Both these statements were confirmed not to be true by Origin, the manufacturer, when I raised this with them. A refund was offered but the time to find another installer & start the whole process again wasn’t an option for me, due to delaying my renovation. Instead, I gave Derwent Windows the opportunity to make good any issues experienced. The Which? Trusted Trader approved Dispute Resolution process had to be taken to get the problem resolved. As the Chartered Surveyor started to come to his decision, Derwent Windows decided to settle my claim in full. After 21+ months of unpleasantness, I received a refund of over £2,100. The 10 year insurance backed guarantee has also now been received, which during this process, Derwent Windows attempted to withhold (even though as a FENSA member this is stated as being mandatory). The outstanding remedial work that was also agreed upon, has at this time after 4 weeks not taken place, this has had to be escalated to Which?. In conclusion, unless you know your legal rights as a consumer & are prepared to fight for them, I cannot recommend using Derwent Windows, as the experience has been extremely time consuming, stressful & unpleasant.
Customer in Derbyshire Posted on 14/11/2024 , work completed 24/10/2017
Very happy!
Customer Service
Quality
Value
The workmen arrived when expected and were polite and friendly. They got on with replacing our front door efficiently and asked us to check where door furnishing were required. We are happy with the look and the quality. It feels very solid and secure. And looks really good. The only surprise was that there was no re-confirmation of the due date for fitting by email or phone. I had to make the call as it had been booked quite a way ahead. But was only a little concern.
Customer in Leicestershire Posted on 11/10/2024 , work completed 12/09/2024
Work completed to high standard
Customer Service
Quality
Value
Living in a Conservation Area we thought long and hard about UPVC windows. After much research we came across Derwent in 2018 and they have replaced most of our windows, both casement and sash, in stages over the past six years. We have been extremely happy with the quality of the windows and the workmanship. Any minor snags have quickly been dealt with. The staff are all very pleasant and I would have no hesitation whatsoever in recommending this company.
Customer in Nottinghamshire Posted on 08/10/2024 , work completed 07/10/2024
A great company
Customer Service
Quality
Value
Derwent Windows have done extensive work on my home, fitting both external and internal windows and glazed doors. From start to finish my experience has been extremely positive. Following my initial inquiry there was a system in place that began with a visit to assess my needs, followed by a surveyor, who came to assess the work and make templates for an unusually sized door, and then the team who came to the fit the products. Each was efficient and time effective. Each person I came into contact with, including those at the office, were very polite, speedy to respond and I was extremely reassured that I was dealing with a business who cared, is professional and has high standards. I've already frequently recommended Derwent as I've had so many compliments on my doors and Windows and will continue to do so.
Customer in Nottingham Posted on 18/09/2024 , work completed 05/09/2024
Very happy with windows & doors
Customer Service
Quality
Value
Ordered replacement Upvc sash window, wooden back door & internal wooden french doors. Very happy with the overall process and end result. Full spec and quote given for all works,and price held despite some delays at our end. Survey, back office and installation teams were all very professional, and our timetables met. We are particularly happy with the wooden architrave finishes especially on the Upvc sash window, which makes it really hard to tell that its "not wood". Wooden doors were a little more expensive vs composite doors of others, but not excessively so, and well worth it. Upvc sash was the best "wood-effect" window we found in the area. Already recommended to friends.
Customer in Nottinghamshire Posted on 01/09/2024 , work completed 27/08/2024
Good product, fitted with care
Customer Service
Quality
Value
Very helpful in selecting our door, fitting was done with care and in the timescale indicated. We had a minor issue that was quickly resolved.
Customer in Derbyshire Posted on 19/08/2024 , work completed 17/07/2024