At Timbawood we manufacture and install beautiful single and double glazed box sash windows throughout London.

As specialists in box sash windows for period, conservation and listed properties, each window is handmade to measure at our West London workshops, matching existing details to preserve the original character of your home.

Offering a wide range of the finest timbers, glazing and hardware, we ensure your new windows provide you with the highest thermal, acoustic and security benefits, whilst remaining as competitively priced as possible.

With Timbawood sash windows you can always expect:

  • Choice of the finest stable timbers including Accoya, Sapele and Oak
  • Specialist glazing options including acoustic glass, laminated security glass, patterned glass and slimline double glazing that looks just like single glazing
  • Choice of profiles, horns and mouldings to match your existing windows
  • High quality hardware – High security fasteners, locks and restrictors 
  • Full factory spray finish with high performance microporous paint
  • Full perimeter draught proofing
  • Full design, supply and install service

At Timbawood we are dedicated to replicating the original look of period windows, while improving their thermal and acoustic performance to provide comfort as well as elegance.

We are able to do this with a wide range of options to choose from, including specialist glazing options such as individual slimline double glazing that looks like single glazing, and the most thermally efficient, durable timber available.

Depending on our production capacity, we are often able to offer special discounts on our box sash windows. Call us on 0208 893 4889 to find out about our latest offers or to arrange a free survey or quotation.




We have replaced and repaired sash windows throughout London and the South East of England.

Box sash windows are a typical feature of the architecture of the Georgian and Victorian eras, characterised by their slim glazing bars and meeting rails, and understated design.

Our box sash windows use traditional weights and pulleys to counter balance the sashes, although we are also able to make them with spring balances. 

Spring sash windows are a modern alternative to the classic cords and weights sash windows, and will fit into any window opening as they do not require a check reveal in the brickwork.

Timbawood are able to offer box sash windows with a range of frame thicknesses, to ensure the frame doesn’t protrude into the room.

Call us for our latest offers:

0208 893 4889

To arrange a free survey or quotation, please get in touch:

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