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Choose Kensington Sash to keep all aspects of timber sash window replacement under one roof. A complete turnkey service with no further work required on plastering or decorating once we leave.

Double glazed sash windows, single glazed sash windows, high security sash windows, timber sash windows, traditional box sash windows London.

Contact us to discuss your sash window project in London. Our surveyor can talk you through all options in detail and explain the processes

At Kensington Sash Group our Timber Sash Windows are all individually made for optimum performance, whilst retaining heritage features and period charms of a traditional sash window.

Fully compliant with building regulations, our premium timber sash windows come fully draught sealed and spray finished with low maintenance Teknos micro porous paint in any RAL or Farrow and Ball colour.

 

We offer the choice between the use of Scandinavian slow grown pine or Accoya® and single or double glazed units. We care about the details at Kensington Sash Group and our highly skilled surveyors will ensure that your new timber sash window products fit perfectly into the aperture in every given aspect.

Our traditional timber sash window range can be adjusted to complement any style of property including those within conservation areas and listed buildings, in addition we also offer single or double glazed sashes fitted into the existing frames to preserve as much of the character of the property as possible.

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Product Details

  • Full Design, Survey, Manufacture and Installation service

  • High quality Ironmongery in a wide range of finishes that include brass, polished chrome, antique brass and any special requests

  • Conservation and listed building options

  • Secured by Design- Find out more

  • Custom glass specification including laminated security glass, acoustic glass and slim double glazing that looks like single glazing

  • Traditional features replicated

  • Choices of different horns and mouldings

  • Fully draught proofed 

  • Excellent thermal and acoustic performance

  • Sustainably sourced stable timber

  • Expert specialist fitting

  • Full After Care service

  • Comprehensive warranties for peace of mind

Weight assisted sash windows

Traditionally timber box sash windows were hung on a cord & weights system. Originally these weights would be made using cast iron, but new sash windows feature steel and lead options to accommodate the extra weight of the double glazed units. Although a costlier option, this is the most reliable option available still today.

Spring assisted sash windows

Using a spiral balance opening mechanism offers a clean modern appearance to a timber sash window. Suitable for brickwork openings without the space for a full sized 90mm box. A spiral balance operates by a spring with tension matching the weight of the sash, concealed in tubes that are then screwed to the top of the frame near to where a pulley wheel would be. 

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