Established in 1978, Win-Dor is the leading home improvement specialist for the Northampton, Milton Keynes, Buckinghamshire, Bedfordshire and Oxfordshire areas.We offer an extensive range of windows, doors, conservatories and orangeries; all of which are available in a wide choice of colours, and are backed by our 10 year guarantee.
Ever heard the saying big enough to cope but small enough to care? Well, this perfectly sums up Win-Dor. We're not a big national company that sees each customer as a number, we're a local company that prides itself on going the extra mile for our customers and providing truly brilliant service.
We're also unlike the small one man band double glazing companies that have very little resources behind them. Our sister company is Astraseal, one of the UK's largest window manufacturing businesses. Being a division of Astraseal means we can give you access to a wider product range and can offer you incredibly competitive prices. We employ 32 staff at Win-Dor, including multiple fitting teams, dedicated service engineers and NVQ qualified surveyors from a wider pool of over 250 staff across the whole group.
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When deciding on new windows for you home, it’s important that you choose the right ones for you. Whether you want to match your house’s existing features, or you want your windows to be particularly energy efficient, Win-Dor can offer you a huge selection of styles and specifications to choose from. 
Whether you’re looking for a replacement entry door, or a door to open the rear of your house onto a garden or patio area, Win-Dor can offer you a comprehensive range of doors to suit the configuration and style of virtually any home. All of our doors are fully customisable, and can be made to complement our range of windows and conservatories to help you achieve virtually any look you want for your property. 
Whether you live in a large country house, period property or bungalow, a conservatory is the perfect addition to any home – adding space, value and light to your property. Win-Dor offer a wide range of conservatories in both contemporary and classical designs, and we can even create bespoke conservatories from your designs. Additionally, we can offer you a choice of both glass and polycarbonate roofs.
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Reviews (16)
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.
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.
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
Sharon Brady
Jun 29, 2021
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.
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.
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.
Mr and Mrs Green
May 12, 2017
Last week twelve of our windows were replaced over three days by Rob and Nick. We would like you to know from a customer perspective how fabulous these two men were. They arrived on time and worked well together fitting the windows calmly and professionally. At all times they were polite, well-mannered and respected the fact they were working in a customer’s home.
As you are aware the quality of any product can be overlooked if a customer has a bad experience. We will happily recommend your installation team and we hope the windows meet the same high standard. Please pass on our thanks
As you are aware the quality of any product can be overlooked if a customer has a bad experience. We will happily recommend your installation team and we hope the windows meet the same high standard. Please pass on our thanks
Mr & Mrs Stanton
Jun 28, 2016
Mr & Mrs Wheeler
Tony Bartrum
Mr Dubois
If you are unsure about exactly what you want - then visit the showroom where really sound advice is provided. Often you will consider a product that you may not have first thought was suitable. Nice, friendly, customer focused service with a product that perfectly fits the bill. Two years after my conservatory was built - I knew the best place to go when deciding on some new doors. Highly recommended for overall service and price.