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New Hardwood Double Glazed Sash Windows and Boxes



The original sash windows had been removed from this beautiful Victorian cottage in Twickenham. Our client wanted the windows changed back to their original style.

Project scope:

  • Installation of new hardwood double glazed sash windows
  • Installation of window boxes

Key benefits to the client:

  • Original features of Sash Windows restored
  • Improved window function
  • Improved thermal performance

We installed new hardwood sash boxes complete with hardwood double glazed sashes into the lounge bay window, the front bedroom and the bathroom. The new sashes were designed to replicate the original windows to ensure we enhanced the look of the house and put back all the original features.

Finally, we installed a full height shutter in the bathroom made from our ABS plastic material which is 100% waterproof.

Dan and Tim did a great job both fitting the windows, but they also worked around our builders who altered the brickwork back to its original state. Despite delays from the building work SashWise were very patient with the changing plans. We got a number of quotes and SashWise offered the best deal and great service. No need to look elsewhere. The shutters also look great, many thanks again. Thanks for all your help over the past few months for both windows and shutters!

We are a small family run business based in Teddington that is committed to providing a personal, friendly and reliable service at a competitive price. We have over 10 years experience in the restoration and replacement of timber sash windows.

We can make double glazed hardwood timber sash windows to fit within your original box sash frame. This will increase the thermal performance of your sash windows and reduce noise pollution, but they will maintain the traditional character of your property.

Contact us

    Our services

    Sash window draught proofing

    Servicing and draught-proofing

    If your sash windows have broken cords or are stiff or jammed shut then this service will restore them to their original smooth working order.

    Georgian sash window

    Sash window repair and restoration

    We completely and sympathetically restore your windows, so they will look like new without losing any of their original features.

    Hardwood double glazed sash windows

    New hardwood double glazing

    If you do not require complete window replacement we can make new double glazed timber sashes to fit your original box sash frames.

    Victorian sash window

    New hardwood sash boxes

    We can supply and fit new hardwood sash boxes complete with double glazed sashes that exactly replicate your original windows.