Buying Guide
Best Draught Proofing Products for UK Homes 2026
Updated July 2026
Draughts cost the average UK home £60–100 per year in wasted heating. Most people seal the obvious gaps — under the front door, around windows — but miss a dozen other sources. This guide covers EVERY draught point in a typical UK home and the best product to seal each one. Total cost to draught-proof an average 3-bed house: under £100.
Quick answer
Our top pick: UAP MailPlate Letterbox Cover
£15–£22 on Amazon
The 5 biggest draught sources in order: 1) Under front door (£10 fix), 2) Letterbox (£18 fix), 3) Window frames (£6 fix per window), 4) Chimney (£15 fix), 5) Loft hatch (£8 fix). Total: approximately £65 for a dramatic difference.
Check Price on Amazon →Every draught point in a UK home
Front door
Windows
Interior doors
- Under door gap: brush strip or door sweep
- Between door and frame: foam strip
Chimney
A chimney without a fire is a direct hole to the sky. A chimney balloon or chimney sheep costs £15–25 and blocks the draught completely. Remove before lighting a fire.
Loft hatch
Self-adhesive foam strip around the loft hatch frame. Add a loft hatch insulation cover (£15–30) for maximum effect.
Floorboards
Victorian floorboards with gaps let cold air rise from below. Flexible filler or draught strip between boards costs £10–15 per room.
Skirting boards
Gaps between skirting board and wall/floor let cold air through. Decorator's caulk (£3–5 per tube) seals them permanently.
Top 5 draught proofing products
Stormguard Brush Cover
Stops the floor-level chill under the front door — the biggest single-source draught in most UK homes.
Pros
- Fits most UK front doors
- Screws or self-adhesive
- Instant fix
Cons
- May need trimming
Who it's for: The single biggest draught point in most UK homes
Check Price on Amazon UK →UAP MailPlate
Full seal plate with bristles and a flap — kills letterbox draughts completely.
Pros
- Full seal plate design
- Bristles + flap
- Fits standard UK letterboxes
Cons
- Fitting requires a screwdriver
Who it's for: Letterbox draughts that whistle in windy weather
Check Price on Amazon UK →Silicone Weather Strip
Compressible silicone that outlasts cheap foam — ideal around door and window frames.
Pros
- Self-adhesive
- Compressible silicone lasts longer than foam
- Doesn't peel paint
Cons
- Requires clean surface
Who it's for: Sealing gaps between door and frame
Check Price on Amazon UK →Tapel Foam Strip
The cheapest quick win — seals gaps up to 5mm on windows and doors.
Pros
- Cheapest per metre
- Self-adhesive
- 10m per pack
Cons
- Foam compresses over 1–2 seasons
Who it's for: Sealing window frame gaps room-by-room
Check Price on Amazon UK →BKSAI Window Film
Shrinks tight with a hair dryer for an invisible draught barrier — perfect for renters.
Pros
- Invisible when shrunk with a hair dryer
- Renter-friendly, removable
- Kills glazing draughts
Cons
- Removes once per winter
Who it's for: Single-glazed or leaky sash windows
Check Price on Amazon UK →How much does draught proofing save?
Data from the Energy Saving Trust:
- Professional draught proofing: saves £60–100/year
- DIY draught proofing: saves £25–60/year
- Payback: 1–2 years for full house
- Combined with thermal curtains: saves £100–150/year
DIY vs professional draught proofing
| Method | Cost | Saving/year | Payback |
|---|---|---|---|
| DIY (this guide) | £50–100 | £25–60 | 1–2 years |
| Professional | £200–400 | £60–100 | 3–5 years |
DIY is 80% as effective at 25% of the cost.
Draught proofing for renters
Every product in this guide is removable
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