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.

Contact Details

  City Northampton
  Postcode NN4 7BD
  Address 7, Monarch Courtyard, 12 Salthouse Rd
  Phone Number 01604 630630

Products & Services

Double glazed windows

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.


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.

Customer Testimonials

Thank you very much for all the help and excellent service provided to us from your staff and team of contractors. We are extremely pleased with the work carried out in an efficient and professional manner Well done!

Just wanted to say thanks for the selection of trades people that came to do our conservatory. Each and every one was professional and courteous throughout.

We were impressed by the way you discussed the available options and listened to our requirements. We are delighted with the instalments and the professional manner in which the work was completed. All the components fitted beautifully and during the installation the site was kept clean and tidy we shall have no hesitation in recommending Win-dor to any of our friends and acquaintances.

The whole installation of our conservatory was handled professionally from the order to the final product. The order and any questions we had in the beginning were all answered reassuringly. The men who did the base for the conservatory were punctual and worked very hard all week. The rest of the installation followed for the majority smoothly. We encountered one problem during the final building of the top, but it was quickly corrected only causing a weeks delay. All the men working at our property were courteous and helpful including the follow on jobs after it was built like the electrics, floor tiles etc. The ladies in the office were very helpful when I needed any assistance and everyone was flexible with dates to fit in with us. I did spend quite a bit of time at the property whilst the conservatory was being built, which did assist if there were any questions during the build. I had previously had windows and doors installed by Astraseal and my Parents had done the same, so we were familiar with the company as had previously done our homework and read reviews.

After looking around the market for all new windows and doors, we found win-dor offered exactly the products we wanted at a very competitive price, the sales man was very helpful in finding information out for us and coming back to us quickly.

The Install was easy with minimal fuss and disruption, we had a slight delay on part of the install due to a member of the team being off ill, this was sorted within a day. The only time we had to call customer service was when a lock failed on the front door so we couldn’t unlock from the outside. This was quickly fixed and switched out by the warranty works team.

Would Happily recommend Win-dor to anybody looking for replacement windows and doors.

I would like to the various people who have been involved in the installation and to add that they were not only very professional in their approach but also very friendly and we would not hesitate to recommend Win-Dor.


Social Activity

We love getting letters like this from happy customers. This one from Maureen and David Wheeler
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Buying windows, doors and conservatories from Win-Dor gives you peace of mind. Find out why here >
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Add a sense of theatre to your home with a gable end conservatory
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New 36 page brochure dedicated to Windows, Doors & Conservatories out now Download here >
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360 degree tours of our double glazing showrooms in #MiltonKeynes, #Bicester & #Northampton here >>
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Brigten up you living space with an Orangery from Win-Dor
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Recent feedback from Mr Ryland of Witney: Thank you to everyone involved from start to finish, I am very happy with the finished results.
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0% Finance options on our Tiled Roof Conservatories
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