Get in touch

Fill in the form and let us know what service you are interested in, and we will call you back.

    Sash windows became popular in the UK during the Georgian and Victorian eras and they are a typical feature of traditional, period British homes. Many people are desperately in need of new windows, but want to retain the character of their home. If your property still has its original windows it is more than likely they are going to need to be replaced. In this case, ask us more about sash window replacement in London.

    We are experts in keeping a property’s character after replacing sash windows. All our windows are handmade in our UK-based workshop using British joining techniques – everything from the frames to the glass are made specifically for you. These are different to the techniques used within the rest of Europe and will ensure your windows look perfect for your period property. We will supply and fit your windows for you, ensuring a professional approach throughout.

    How Wandsworth Sash Windows can help you

    Our customers often come to us wanting wooden double glazed windows, but are unsure how to achieve this. We offer two distinct services to our customers – many other companies offer just one.

    • Complete renewal (complete new box frame and double glazed sashes). Our most comprehensive service for sash windows is to remove the old window, and fit a completely new one. Architraves, window boards and more are included to ensure that you are left with the best possible finished product. Our installers have worked in period properties for years, so they know how to work with and around the quirks that older buildings throw at them.
    • Sash replacement (new double glazed sashes installed into the existing box frames). This is our most popular service for sash windows as it lets you enjoy all the benefits of double glazing, without quite so much work. When fitting new sashes into your existing box frames, our carpenters will fully draught seal your windows, hang the window on new cords and fit a complete set of ironmongery. On request, we can also repaint the existing timber – just ask.

    What do our customers think?

    Replacement sash windows – traditional appearance with modern efficiency

    At Wandsworth Sash Windows, we believe very strongly in the benefits of making all sash windows by hand. This means we can tailor the appearance to meet your exact requirements and make sure it is perfectly in keeping with the rest of your property.

    Why choose Wandsworth for your new sash windows?

    We are strong advocates of the importance of keeping sash windows looking true to your property. They are made, measured and installed by us as well, so we always achieve a perfect fit. Here are some of the reasons why we are the right people to supply and fit your sash windows:

    Window Icon

    We hand-make all our windows

    We use mortice and tenon joints rather than screws, and you won’t find any large machines for mass production in our workshop. Everything is made personally so we can take care of the details, like matching wood grain and providing a hand painted top coat.

    Our installation team fit your windows for you

    They are all experienced carpenters, which is important when working on period properties – you can’t guarantee what you will find when an old window is removed. Unexpected findings could hold up the work, but not for us. We make changes to windows in situ so we can fit them as planned.

    Quality is second to none

    Many European windows are made from pine and are screwed together, or they use substandard jointing methods. Not ours. We use Scandinavian kiln-dried redwood with mortice and tenon joints to provide a superior finish. Redwood is stronger than pine and won’t begin to distort and bend over time.

    Sash Window Consultation

    One point of contact

    You will easily be able to get hold of the person you need at our head office, and you’ll receive a personalised service. The team will ensure you are kept informed about the progress of your project at all times, making regular contact throughout the process. Meet our team here.

    If you would like to arrange your free, no obligation quotation, please call 0207 924 7303 or email We will be happy to answer any questions you might have about sash window replacements.

    We believe there are many things that set Wandsworth Sash Windows apart as a company. Find out more about us.

    How do new sash windows help your London home?

    New sash windows have so many benefits for your property. By installing new windows that are made to measure and fitted by experts, you’ll be able to eradicate many of the problems that can develop over time. These are some of the ways new sash windows can improve your property and your lifestyle:

    Sash Windows


    Getting rid of old, rotting, rusting windows will really lift the appearance of your property. We use British joinery techniques and Scandinavian kiln-dried redwood for strong windows that stand the test of time.

    Window Insulation


    Modern sash windows will use better glazing and will be made from insulating materials that improve heat retention.

    Sound proof Sash Windows


    New windows will be properly sealed, and we can upgrade your glass if soundproofing is a concern.


    Windows are an intrinsic part of the home and by installing new ones, you can help improve the value.

    Case Studies

    Made in Britain

    Buying British

    At Wandsworth Sash Windows, we make all our windows, doors, and joinery by hand in our Sussex-based workshop.
    Help us support homegrown craftsmanship and create local jobs – buy British.

    Contact the Wandsworth Sash Windows team

    Talk to us – we can help with your bespoke window, door and joinery requirements. You are very welcome to pop into our showroom, which is based at Unit 2, Kangley Business Centre, Kangley Bridge Road, London SE26 5AQ.

    You can call us on 02079247303 or email

    Fulham Showroom

    Please feel free to visit our showroom to see samples and discuss your latest project at 461-463 Fulham Rd, London SW6 1HL,

    The closest train station is Fulham Broadway (Zone 2)

    Hours: Monday to Friday, 9am to 4pm | Saturday & Sunday Closed 

    Parking: Metered parking is available on nearby Moore Park Road (SW6 2JB)

    Let us know you are visiting by calling: 02079247303