
Bespoke Sashes Ltd
SASH WINDOW DRAUGHT PROOFING
Draft-proofing your existing sash windows with a bush pile draught-proofing system and/or secondary glazing offers several advantages. Firstly, it significantly improves energy efficiency by reducing heat loss, leading to lower heating bills and increased comfort. By sealing gaps and cracks, draught-proofing also enhances sound insulation, creating a quieter indoor environment.
Additionally, it helps prevent moisture ingress, reducing the risk of damp and mold, thus improving indoor air quality and preserving the integrity of your property. Moreover, draught-proofing systems are cost-effective solutions compared to window replacements, offering a quick and hassle-free way to upgrade your windows while retaining their original charm and character.

Brush Pile Draught Proofing
Brush pile draught proofing for sash windows involves inserting a strip of fine, dense bristles (resembling a brush) into the gaps around the window frame. These bristles form a barrier that seals the edges of the window when it's closed, preventing cold air from entering and warm air from escaping.
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This method effectively reduces draughts, improves energy efficiency, and enhances insulation in older sash windows. The brush pile creates a tight seal without compromising the window's functionality, allowing it to open and close smoothly while significantly reducing heat loss and increasing comfort within the space.
How do we install our high-performance sealing system?
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Careful dismantling of the sash window
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Weighing the sashes and checking the weights correctly counterbalance
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Routing in brush piles to the meeting rails
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Checking, cleaning, and lubricating the pulleys
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Re-cording the window with new reinforced waxed cotton sash cord
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Replacing parting and staff beads with new brush pile parting and staff beads
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Removing excess paint obstructing sash running surfaces
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Re-fitting the rebalanced sashes in alignment with the beadings
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Painting all exposed timber with white primer
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Checking the draught-proofed window operates correctly


Secondary Glazing
Adding secondary glazing to sash windows provides numerous benefits. It significantly improves energy efficiency by creating an additional barrier against heat loss and draughts, thereby reducing energy bills.
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Secondary glazing also enhances sound insulation, blocking outside noise and creating a quieter indoor environment. It improves security by adding an extra layer of protection against intruders. Additionally, it preserves the original appearance of historic or period sash windows while upgrading their performance to modern standards.
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This solution is more cost-effective than replacing windows entirely, making it a practical choice for improving comfort and sustainability in homes or heritage buildings.