Endorsed by Which?

Derwent Window and Doors Ltd

4.9

130 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

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How can we be so sure?

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

4.9
130 reviews
Customer Service
4.9
Quality
5.0
Value
4.9
Sort by
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
New doors & windows
Customer Service
Quality
Value
Decided to replace 2 doors and 2 windows including our front door..Viewed the products at a local showroom and obviously they were of very good quality.The surveyor was very experienced and was able to answer all our enquiries.Long lead time for manufacture but we were very pleased with the quality once fitted.The fitters were excellent working hard throughout the day despite heavy rain even refitting Venetian blinds afterwards which we thought we would have to do. Although they inadvertently cut through a telephone cable which both we and they thought was redundant when it turned out it wasn’t they successfully repaired the severance. Overall very happy with the product and extremely happy with the fitting.
Customer in Nottinghamshire Posted on 04/01/2024 , work completed 12/12/2023
When only the best will do…
Customer Service
Quality
Value
This company has now undertaken installations at both my current and previous properties, in all, several stunning window and door projects over the past 10 + years. The work just completed (December 2023) required feasibility advice on the installation of brand new floor-to-ceiling timber windows in alcoves to either side of a fireplace. From the initial survey and valued technical advice, to ordering the bespoke timber products, and finally the skilled building work undertaken by the superb in-house team, everything went to plan - and looks fantastic.
Customer in Derbyshire Posted on 02/01/2024 , work completed 20/12/2023
Traditional casement windows
Customer Service
Quality
Value
We had two traditional casement windows fitted to the front of our house to replace existing windows, which were pretty much beyond repair. From start to finish the service we received was excellent. Options and costings were explained clearly and communication along the way couldn’t have been better. Very satisfied. Good company to deal with and would use them again.
Customer in Nottinghamshire Posted on 21/12/2023 , work completed 18/12/2023
So good we asked them back for some more
Customer Service
Quality
Value
We were so pleased with the doors, French windows and windows they fitted in the summer we asked them back to install some more. Superb product, skilled and friendly workforce and competitive price (you get what you pay for). The customer service and caring attention to detail second to none.
Customer in Derbyshire Posted on 10/12/2023 , work completed 27/11/2023
Excellent company
Customer Service
Quality
Value
Derwent windows initially installed 2 new French doors for us in April and we were so pleased with them that we went ahead and asked them to replace all the windows in our house which were in a sorry state. We were rather anxious as it was such a big, expensive job but we couldn't be happier with the finished result as our new windows are not only beautiful in appearance but they have made the house much more soundproof, warmer and secure. The whole job was completed within the 2 week schedule and the timekeeping of the window team was excellent. They were friendly, respectful and professional throughout and there was minimal disruption during the job. It has been a pleasure to deal with a company who not only have first rate products but also have a good team of window fitters to install them. Our thanks to the Managing Director Rob and all his team on a first class installation.
Customer in Derbyshire Posted on 28/11/2023 , work completed 21/11/2023
Excellent products and excellent fitting
Customer Service
Quality
Value
We had our windows replaced in 2019 and have just had front and back doors fitted. Windows and doors have been admired by friends and neighbours.Derwent Windows on both occasions were helpful throughout from the planning and drawing stage through to the final fitting. Everyone in the company has been very professional and a delight to deal with. I would certainly recommend this company.
Customer in Leicestershire Posted on 31/08/2023 , work completed 16/08/2023
Excellent work - very satisfied
Customer Service
Quality
Value
We had several windows replaced by Derwent Windows in 2020 and have just had another window replaced. Excellent service as before, with good communication. Work was carried out on agreed date, very efficient and careful installers. Very happy with the result. Would definitely recommend.
Customer in Nottinghamshire Posted on 09/08/2023 , work completed 27/07/2023