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Win-Dor Watch our video and discover our outstanding products, fantastic service and passion for your vision. Win-Dor is a top home improvement and double glazing company, serving Northampton, Milton Keynes, Oxford and the surrounding towns and villages for more than 35 years. We manufacture all our windows, doors and conservatories (uPVC and aluminium) ourselves - guaranteeing you will get the best quality home improvements, and of course, the best price.If you're thinking of upgrading your windows and doors, or creating extra space with a new conservatory, why not check out some of the beautiful home improvements we have on offer?
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Established in 1978, Win-Dor is a leading window, door and conservatory company, with nearly 30 years' improving homes in the Heart of England. With double glazing showrooms in Milton Keynes, we're in the perfect place to help you create your dream home. No matter where you live in Oxfordshire, Northamptonshire, Buckinghamshire or Bedfordshire, get in touch today for free home improvement advice or quotation!
At Win-Dor we understand that it's important you get your home looking exactly the way you want. That's why we're proud to boast that we can provide you with windows that can be made to your exact colour specification with our in-house colour spraying service. This means that in addition to their excellent levels of performance, you can have any of our uPVC windows made in virtually any colour you like.
Whether you are looking for uPVC or aluminium windows for your property, we have a comprehensive range of double glazed windows sure to suit any home. Featuring innovative designs and the latest technological advances, our uPVC windows can offer the best in security, low maintenance and energy efficiency.
Windows manufactured by Win-Dor can not only improve your home's aesthetics, but they also have outstanding thermal properties. Our uPVC windows are capable of achieving an 'A' Window Energy Rating (WER) when used in combination with high quality glazing units. By referencing our windows against the WER alphabetical scale from A to G with - with A being the best and G the worst - our uPVC windows more than satisfy the minimum requirements stipulated by building regulations, with C being the minimum required standard.
Reviews (11)
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Lisa Woods
Jun 06, 2022
We have been satisfied customers of Windor for over 10 years. We initially had a conservatory built by them and more recently in our new house, a new composite front door, French doors and windows. Each time we have received an excellent service from the start. Andrew in the showroom is excellent, knowledgable on products and gives you a proper quote for the work from the start, none of the games adopted by other companies. Ian the surveyor again knows his stuff, and the fitters take pride in their work, are efficient and tidy.

The measure of a good company is their after sales service, and where there have been minor issues, these have been sorted quickly. My composite door needed a slight adjustment within a couple of days of fitting and a fitter arrived later the same day to sort - amazing service! I highly recommend and wouldn't go anywhere else.
Jane Gibbs
Mar 14, 2022
We are really pleased with the quality of the windows and the expertise of the fitter who has carried out an excellent job. There was negligible damage given the amount of wooden windows we replaced. It did take three visits to complete the work which is the only reason I have not given 5 stars. This was due to supply issues generally that currently hamper imports into the UK from Europe.

I could understand though if some parts were missing first time round but it was a bit of a nuisance when it became apparent during the second visit that there were still bits missing. I would go back to this firm again though and would recommend the company to others.
John Hartley
Jan 20, 2022
Having moved house their was only one firm Windor to contact to build a new conservatory and replace all the existing windows. Our last house they did a superb job same again this time. Windor are well priced, their sales team are not typical double glaze salesmen. They offer solutions and a single price ( typically cheaper then those big brand) there fitters are clean, tidy and very friendly with a tremendous work ethic. Any queries are efficiently dealt with by the office and support team. 110% recommend WIndor if you want proper job done that will last.
Paul Hill
Jul 05, 2021
We have employed Win Dor now on two separate occasions and both times the service has been fast and efficient. The fitters were professional, polite and very tidy. would thoroughly recommend.
Sharon Brady
Jun 29, 2021
Professional company who offer a very good range of doors. Good service and advice, competitive prices. Would recommend.
Olga Wilson
Jun 14, 2021
Please never use this company, we have so many issues with our door and service is disgusting. Door wasn't fitted proper, you can see outdoor. Handle keeps coming off. We called company several times for the last 8 months and nobody is coming to fix the door. Appointment on 28May was cancelled and nobody had a decency to tell us. My husband just called them and lady was really not helpful, she said we need to wait another week just to get an appointment. Shocking. They just don't care at all. I fell really let down and upset and we paid lots of money for our door, it was not cheap rubbish.
Monkey Magic
Dec 01, 2020
Do not let these jokers mess up your home. Absolutely appalling workmanship and work ethic. All they are concerned about is doing the job as fast as possible so they can knock off early. Numerous problems: The lead that was supposed to be installed to make the roof watertight went 'missing' and was not installed (maybe got sold instead?). Vast amounts of silicone sealant was used to fill in a large gap between wall and conservatory.

When asked numerous times not to leave the job like that they still did. The foreman came out to check and said - as long as the finish is ok that's all that matters in the building trade. NO IT ISNT. Installed broken components. Took more visits to fix them. Installed downpipe in wrong location. Lied about discussing it with me. When I said no one spoke to me they claimed they couldn't do it because there were electricity cables I the way.

Again that was incorrect. Messed up the roof of my house on multiple occasions. Again multiple visits to 'fix'. The whole thing took nearly a year to finish. These guys are terrible to say the least. Save yourself the headaches and buy elsewhere.
Anita Flunder
Dec 07, 2018
Can I just say a big thank you to you guys. When I walked into your showroom I knew I was in the right place. I told you what I wanted and my price limit and boom you hit the nail on the head. There was no pushing for extras or "go bigger". Within 5 mins of being there a simple diagram was drawn up for me to see if what I wanted. The deposit was paid there and then and that afternoon plans were e mailed to me for me to see.

Not long after a surveyor popped around for the final detailing of measurements etc. We had an old style Perspex summer house where we wanted the new conservatory to go. Not a problem they said we will remove and dispose of it all in the price quoted. The guys who removed the summer house and put the base down were brilliant. They were methodical with their work and always kept the area clean and tidy.

Communication was always good and when a date was decided for the build the team turned up on time and early. With in two days the conservatory was built. Wow what a difference. Again everything was left spotless. Once again many thanks not just to the outdoor workers but the staff at the showroom for such exceptional service.
Nigester
Aug 22, 2018
We had quotes for our conservatory from lots of different companies in Milton Keynes and windor gave the best price and most detailed quote. Andrew was happy to keep adjusting our quote and plans as we kept changing what we wanted so that it suited our vision. The work was completed quickly with no problems and the after care was excellent with a couple of glass panes with tiny defects replaced without any fuss. It is easily the most used room in our house with the only regret being that we didn't get this done sooner! Nigel
Julian Streeter
Jun 26, 2018
We have been a customer for years. Windor have always done a fantastic job for us. They changed all windows and doors at our last 2 properties, and built a conservatory on each. A compact conservatory and more recently a large open plan Orangery. Both with glass roofs, they improved our home significantly. Great value for money, product quality and customer service. Would happily recommend them to anyone.
Denise Deane
Oct 21, 2017
We have used Win-Dor for all our home improvements over the years, their products are in our option one of the best. The Sales team are always helpful and answer any questions and do not put any pressure on you to purchase, unlike other firms. Andrew the Sales Manager is always ready to help with designs ideas and what is achievable. The fitting teams and builders are courteous and work in a methodical way, ensuring the site is kept clean and tidy. We have no problem in recommending them to anyone.