As a wonderfully traditional window option that utilizes a vertically sliding window design, sash windows from Martindale combine the elegance of classic timber sliding windows with double / triple glazing to create a glazing option that adds style, sophistication and safety to any home.

By choosing only the finest sash window designs from some of Northampton’s most prestigious suppliers, we can ensure that your next set of sliding windows retain all the traditional charm of a county house, but are highly energy efficient, extremely secure and most importantly, maintenance free!

For more information on our sliding sash windows or to arrange a no-obligation quotation, please contact us below.

What our customers say about our Windows...

  • Matt and Con from Martindales came to change my patio doors today!! They were really quick, clean and did a very good job! They went well beyond what was expected and I was extremely grateful to them both. Wouldn’t hesitate to recommend this company! Thank you 😊

    Vanessa Davies

    In 2021 we used Martingdale for a new sliding door double aspect replacing an existing window on the 1st floor onto a balcony. Fantastic job across 3 days due to I-frame installation also required. We used them again in April 2022 to replace a large window (2 floors up) and Gareth, his son, and Cliff did an amazing installation despite emergency use of scaffolding which was required. We are just completing another 4 floor purchase in Northampton and will probably require a whole home replacement front and back – surprised if we use anyone else. During the same time in 2021 we had a complete new conservatory, extensive bifold doors, windows, etc in a large country property elsewhere so can compare prices and work across suppliers. We would highly recommend Martindale.

    Olinga Taeed
  • very friendly reliable company got job done in time scale and done an excellent job nice workman very tidy would recommend and use this company again have previously used for another job and they don’t disappoint they turn up on time and gets the job done very pleased with them a++++

    dazza coom

    From our first contact to the completion of the installation of our new French doors, all the staff office and site workers have been excellent. We are now looking forward to Martindales carrying out further work at our property.

    Philip Jones
  • Fantastic service start to finish and any small issues that cropped up weren’t a problem to put right. Everyone we have dealt with was polite, friendly and informative. Particular thanks to Tony and Joe for the sales process and Neil and Gerry for fitting!

    Michael Neal-Brook

    Definitely the Company to choose!I highly recommend! ⭐⭐⭐⭐⭐I contacted Martindale on behalf of my Father who wanted to start some house renovations with double glazing and a front door. Weary of typical double glazing salesmen and of course wanting a quality service for my Dad, I was more than pleasantly surprised by Martindale. The reviews are spot on! From the initial contact with Tony who was very approachable and helpful, the regular updates from Joe, right through to the excellent fitting by Jerry and Ryan – we have been absolutely delighted with the professionalism, consideration and quality of service and products we have recieved.Absolutley no sales pressure, a competitive price and with a genuinely efficient, friendly, tidy and punctual team. The finished product not only looks great but is much more secure and instantly has made the house warmer and quieter. Thank you so much for making this painless for my Father. Much appreciated! We will definitely be contacting you for any future works we need & will happily reccomend Martindale to our friends and family! 👍

    Kerrie Marks

Recent Sash Window Projects