Endorsed by Which?

Derwent Sash Windows Ltd t/a Derwent Windows and Doors

4.9

145 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
145 reviews
Customer Service
4.9
Quality
5.0
Value
4.8
Sort by
Excellent product and service
Uses Derwent Windows and Doors for replacement French doors I am so pleased with the quality of the product (wood doors) They look amazing and beautifully finished The service from Ben and Haydn was exceptional On time, polite, efficient, very professional, cleaned up wonderfully and took pride in their work They did an excellent job I can highly recommend this company for windows and doors Thank you for an excellent service and product
Customer in Derby Posted on 05/11/2024 (Reviewer did not use service)
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
Excellence job
Customer Service
Quality
Value
I had a number of windows replaced by Derwent earlier this year. Being completely satisfied with these I asked if they could replace two more which were so inaccessible that I fellt that it would be prohibitively difficult. Andy the surveyor deemed it possible and Ian and Rob did a brilliant job under very difficult circumstances.
Customer in Derbyshire Posted on 06/08/2024 , work completed 01/08/2024
Friendly and efficient
Customer Service
Quality
Value
New front door installed This company was efficient but friendly right from the beginning when looking at doors in their showroom. Once I had made my decision their representative came and took all the necessary measurements. I was then contacted when payments necessary and made aware of the length of time it could possibly be before door would be ready and could be installed . On e adapter arose it was all very smoothly done. Very conscientious about sheeting everything down and then cleaning up afterwards, workmanship was great, thoroughly pleased with my new door and rate this company very highly. Nice when folk are good at their job, efficient but friendly too, makes it the best.
Customer in Nottinghamshire Posted on 21/05/2024 , work completed 14/05/2024
The trader replied (on 24/05/2024)
Hello Thank you for taking the time to leave a review and awarding us a perfect five out of five star rating. We are delighted you appreciate the extra steps out fantastic fitters go to to ensure an excellent installation. Many thanks Alister
Extremely Satisfied!
Customer Service
Quality
Value
A first class product supplied and fitted by a first class company. Having used Derwent Windows previously we decided to approach the company to supply and fit the remaining windows in our property. Expert advice during the survey was given on the most appropriate type of windows. In this instance traditional casement rather than sash windows, two of which we had previously fitted by the company. Work was completed to the agreed schedule and budget despite some inclement weather conditions at times. The fitters were always considerate when in our home protecting fixtures and fittings at all times. Having used the company before we have found the aftercare excellent. We would have no hesitation in recommending Derwent Windows and will be using the company for future work.
Customer in Derbyshire Posted on 05/03/2024 , work completed 05/03/2024
The trader replied (on 24/05/2024)
Hello Thank you for taking the time to leave a review. We are delighted to receive a clean sweep of five star rating for Customer Service 5* Quality 5* Value 5* Kind regards Alister
WINDOW
Customer Service
Quality
Value
Derwent Windows are usually very good, but with this order of just one window its been an awful experience. It was weeks for someone to actually visit and measure up the opening, which has had knock on problems meaning we weren't able to complete the extension weather proofing before Christmas. The chap fitting the window didn't seem to want to be here, and we still haven't got the keys to operate it. We placed an order with someone else for a Bifold door, and from order to fitting was 3 weeks.
Customer in Derbyshire Posted on 23/01/2024 , work completed 16/01/2024
The trader replied (on 24/05/2024)
As a family-run business, servicing the East Midlands for over 25 years, I take negative reviews very seriously as we strive for continual improvement and excellence. I have thoroughly investigated the facts of your order and offer the following observations and comments that I hope will offer a more balanced view. You have placed 5 orders with us over the last 7 years. You have stated that it took “weeks” for somebody to visit you for the survey. You placed an order with us on Wednesday the 31st of October 2023 for one window and we visited to carry out the site survey on Wednesday the 8th of November. 5 working days later. We emailed your contract and request for a deposit on Monday the 13th of November. You paid your deposit on the 23rd of November. You didn't approve your drawings or confirm your contract until the 30th of November, a delay of 13 working days. From approval of your contract to installation took 21 working days, taking into account the Christmas shutdown period. We took delivery of your window from the manufacturer on the 15th of January. We installed your window on the 16th of January. I personally called you on the 15th of January to ask if it would be a problem if we delayed your installation by a few days due to staff sickness. You advised me it wouldn’t be a problem, but I heard your wife in the background angrily swear. I have never heard such a reaction when asking to potentially delay the installation of an order. I then advised that the installation would take place on the agreed date of the 16th of January. The fitter arrived at 7.45 am and left approximately 3 hours later. After the installation, as we do with all orders, out of courtesy we phoned to ask if everything was ok with the installation. You replied that you were happy but there was a key missing for the window lock. We sent out a replacement key, but unfortunately, we sent out the wrong key. Out of all the complex orders we have ever processed, it seems very strange that an order for one window, installed into a new build extension, we have received our worst rating ever on which trusted trader. Especially when I look at the facts that from approval of the contract to installation took 21 working days. We are committed to your guarantee of 10 years and if you have any further problems, I am happy for you to deal with me directly. Kind regards Alister Walters