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With over 40 years’ experience in the windows, doors and conservatories industry, family-run Martindale Windows are Northampton’s leading home development experts. We have built a long-standing reputation within the Northamptonshire area for combining the finest double-glazed products with expert workmanship to take your project from concept to completion. What’s more, because the majority of our windows, doors and conservatory work in Northampton, Milton Keynes, Bedford, Oxford and beyond comes from customer recommendations (a fact we’re very proud of), you can be assured of the quality you’ll receive on your domestic development project is of the highest standards. Contact us today to arrange a free quotation.


Click one of our services below for more information. Alternatively, visit our new Inspiration Video Gallery below to get some exciting ideas for your next home improvement project, or discover how you can spread the cost of your project with our range of Window, Door & Conservatory Finance Options.


Finding the ideal Windows for your home can now be easier than ever before with Martindale Windows. By selecting the finest range of Windows that the market has to offer, we can help to find a solution that perfectly matches the requirements of you and your home.

Using the most stylish and secure uPVC, Aluminium & Hardwood Windows we can help you re-design and optimise the exterior of your home. From a full set of Bay and Bow Windows to Coloured and Triple Glazed Windows, we’ll find your perfect glazing.


Installing the finest quality Doors is the perfect way to enhance the appearance of your home. Whether you require a uPVC, Hardwood or Aluminum double-glazing solution, the range we provide at Martindale Windows and Developments gives you a wealth of choice.

From contemporary to traditional and everything in between, whether your house is in Northampton, Milton Keynes or further afield, we guarantee Martindale’s Windows and Doors will meet your own requirements.


Looking for extra space with a new Conservatory? If so then Martindale Windows can work with you from early stages of planning and guide you through the necessary regulations needed when considering an extension or conversion of your property.

Using experienced tradesmen and high-quality property improvement products, we will work with you to transform your home and develop the perfect Conservatory around your exact requirements.

Roofline & Cladding

Using the finest Fascias, Soffits, Guttering and Cladding, our Roofline products are reliable, require very low maintenance and are sourced from the finest materials, ensuring that repainting wooden fascias and soffits become aching of the past.

Not only will our range of Soffits and Fascias save you time, they will also improve the look and appeal of your property and are available with suited guttering, down-pipes and cladding.

Bespoke Kitchens

With our bespoke Kitchen Design service in partnership with Grand Union Designs, Martindale Windows can help you to design the kitchen of your dreams. Our team of qualified carpenters and fitters will ensure you have the right kitchen to suit you home.

So whether it’s contemporary or traditional, we will be able to advise you on a style to suit your home and your budget, ensuring your home improvement project is delivered to the highest standards.

What our customers say...

  • Martindale Windows recently replaced all the windows at my house (18 Windows, 2 doors, Patio Door & French Door). From initial communication through to sign off I have been very impressed.
    I found them to be very professional, approachable & competitively priced without skimping on quality.
    The fitters were clean, tidy, polite and careful – treating my house like a home, not a building site.
    We are very glad that we chose Martindale and would recommend them in a Heartbeat.

    Jon witts

    All-round Excellent service and product, well fitted by friendly professionals.

  • I have been very impressed with Martindale Windows.
    I required replacement double glazed windows and this company was recommended by my son. I have not been disappointed. Their products are very high quality and their prices very competitive. Thank you to Russ, Joe, Richard and Jane for such great customer service, my windows look great! and I will definitely be back in the future as a customer.

    Lisa Berry

    I wanted to replace my front door but unsure upvc or composite door. I spoke to several different companies. And decided to buy local from Martindale Windows. Father & Son experience shared their knowledge on the difference between the two doors. I settle with a Composite door. The friendly receptionist rang me to confirm a fitting date. The fitters turned up and introduces themselves, and fitted the top quality door. I am one happy customer.

    Ray Campbell
  • Over the moon with my new windows. The fitters did a great job, were quick and left no mess. excellent job. It’s like living in a new house. Can highly recommend Martindale Windows, both staff and quality of workmanship.

    Werner Mittelsdorf

    Have used Martindale a few times on various jobs and each time they are professional, reasonably priced, and do a really good job.

    Joanne Carlin

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