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Draught Proofing: A Cost-Effective Solution for Sash Windows

One of the most popular services we provide at Sash Restoration London, is the draught proofing and renovation of your original timber sash and casement windows, to bring them up to modern standards of draught proofing and insulation. The sash windows are removed and the whole window is overhauled, the windows are then thoroughly inspected for rot and any rotten timbers are carefully cut out and replaced.


A typical sash window refurbishment will involve: 

  • - replacing any broken glass

  • - replacing any rotten sections

  • - re-balancing and re-weighting the windows

  • - fully draught proofing installed into the sash windows

  • - restoring the original box frame

  • - replacing the external pointing

  • - replacing all the ironmongery where needed

  • - fit new heavy duty pulley wheels












All draught proofing is discreetly inserted into new staff and parting bead, and does not alter the appearance of your sash windows in any way. This service is particularly suited to clients who live in conservation areas, listed buildings, as planning restrictions will mean that upgrading to double glazing is often not an option.


If your sash windows are in extremely good order, installing a draught proofing system is the only option. This involves the installation of draught proofing into the parting beads and baton rods and running a seal for the mid rail and base of the window. This is a more economical way of improving the thermal efficiency of your windows, however it is not nearly as comprehensive as a full sash restoration.​ Our draught proofing service complies with all new conservation regulations and planning guidelines

The vast majority of sash and casement windows in London are repairable, but should your existing windows be beyond repair, we can manufacture individual sash and casement windows to match your original design, as well as offering a complete sash window restoration service.

For further information or if you have any questions regarding our draught proofing service please contact us at: or call our head office on: 0207-6093012

Draught Proofing Sash Windows London
Draught Proofing Sash Windows London
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