Warmer, quieter, no more rattles
Draught-Proofing
Draught-proofing is the single best-value thing you can do for an old sash window. Upgraded bubble seals are routed neatly into the beads and rails, so the sash still slides freely, but the gaps that let in cold air and rattle in the wind are sealed. Historic England has found it can cut air leakage through a sound sash by up to around 86%.
What’s involved
A warmer, quieter room and a window that no longer rattles every time the wind picks up.
Upgraded bubble seals routed into beads and rails
Sashes still open and close exactly as before
Cuts draughts, heat loss and energy bills
Stops the rattling and reduces outside noise
Can be done on its own or as part of a repair
Neat, almost invisible once finished