What sash window draught proofing includes
Every stage of the job in the order it happens — survey, stripping down, easing, routing, new beads, re-balancing and making good — and why the order matters.
Guides
Everything we know about draught proofing original sash windows, written to be useful whether you hire someone or do it yourself.
The service
What it costs in 2026
Real published prices per window and per house, why two quotes for the same-sounding job differ fivefold, minimum charges, and why "5% VAT" is out of date.
Areas we cover
Where we work across London and the South East, the property types we mostly see, and what actually makes a job practical.
Doing it yourself
How to draught proof sash windows yourself
Which seals work on a sliding sash and which do not, real prices, how much pile one window needs, the pile height most people get wrong, and when to stop.
Sash window draught excluders and seals
A buyer’s guide to every product sold for this job — foam, EPDM, silicone, brush pile, carriers and kits — and where each one belongs on the window.
Parting beads and staff beads
What each bead does, how to identify and measure yours, the options for replacements carrying pile, and why they are almost always replaced rather than reused.
Problems and comparisons
Rattling sash windows
Why sashes rattle, the causes people miss, and the fixes in order of cost — from tightening a fastener to a full overhaul.
Draughty sash windows
How to work out where the draught is actually coming from — including the ones that have nothing to do with the sashes — and what fixes each.
Secondary glazing vs draught proofing
An even-handed comparison on the measured numbers: what each one actually does to heat loss, air leakage, noise and cost.
Listed buildings and conservation areas
What genuinely needs consent and what does not — including the nuance about grooving that most sites get wrong.
Get a price for your windows
Send us the number of sashes and your postcode and we will come back with a written guide price, then confirm it on survey.