Best Draught Excluders for UK Flats
Draughts are one of the biggest causes of a cold, expensive-to-heat flat — and one of the cheapest to fix. Sealing the gaps under doors and around windows keeps warm air in and cold air out, with no drilling and no lost deposit. This guide rounds up simple, renter-friendly draught excluders that pay for themselves quickly.
QUICK ANSWER
For most flats, a brush strip or clip-on excluder along the bottom of external and hallway doors plus a self-adhesive foam or silicone seal around draughty door and window frames stops the worst of the cold air. A weighted “door snake” is the easiest no-fit option of all.
Who this guide is for
Renters and flat owners feeling cold draughts under doors or around windows who want a cheap, reversible way to cut heat loss and lower heating bills.
Our picks at a glance
| Pick | Product | Best for |
|---|---|---|
| BEST OVERALL | Stormguard Brush Draught Excluder (Clip/Screw, 914mm) | A durable under-door brush strip |
| BEST ADHESIVE SEAL | Vellure Premium Self-Adhesive Door Seal Strip | Sealing gaps around door and window frames |
| BEST DOOR SNAKE | Marwood Weighted Under-Door Draught Excluder | The easiest no-fit option |
| BEST HEAVY-DUTY | Hongbaite Heavy Under-Door Draught Excluder (91cm) | Wider gaps and draughtier doors |
| BEST VALUE | Under-Door Draught Excluder Strip (94cm) | A budget all-rounder |
How we chose
We compared these products on the features that matter for UK flats — size, practicality, running or maintenance needs, renter-friendliness and value — using published specifications and brand reputation. We haven’t tested every product hands-on, and we don’t quote prices or star ratings here because they change; tap through to Amazon for the current figures and reviews.
The best draught excluders for UK flats
Stormguard Brush Draught Excluder (Clip/Screw, 914mm)
Best for: A durable under-door brush strip
Stormguard is a well-known UK draught-proofing brand, and this brush-strip excluder fits along the bottom of a door to block cold air while still letting the door swing freely.
Pros
- Trusted draught-proofing brand
- Durable brush strip
- Blocks under-door draughts well
- Cut to size for most doors
Cons
- Best results screw-fixed (check tenancy)
- Brush wears over years
Vellure Premium Self-Adhesive Door Seal Strip
Best for: Sealing gaps around door and window frames
A peel-and-stick foam/silicone seal that lines the frame to close the gaps around doors and windows — fully removable, so ideal for renters.
Pros
- Peel-and-stick, no tools
- Fully renter-friendly and removable
- Seals frame gaps and rattles
- Cheap and easy to apply
Cons
- Adhesive can mark paint over time
- Needs a clean, dry surface
Marwood Weighted Under-Door Draught Excluder
Best for: The easiest no-fit option
A classic weighted fabric “snake” that simply sits against the bottom of a door — nothing to fit, and you can move it between doors.
Pros
- No fitting at all
- Move it between doors
- Works on uneven floors
- Very cheap
Cons
- Needs repositioning when the door opens
- Only covers the base of the door
Hongbaite Heavy Under-Door Draught Excluder (91cm)
Best for: Wider gaps and draughtier doors
A double-sided under-door excluder that grips both sides of the door base to seal larger gaps, useful for older, ill-fitting flat doors.
Pros
- Seals larger gaps
- Double-sided design
- Slides on, no tools
- Good for older doors
Cons
- Can add slight drag to the door
- Sizing must match the door
Under-Door Draught Excluder Strip (94cm)
Best for: A budget all-rounder
A low-cost self-adhesive under-door strip that covers the essentials for a single draughty door without spending much.
Pros
- Very cheap
- Self-adhesive, no tools
- Covers a standard door
- Good starter option
Cons
- Basic materials
- Adhesive strength varies
How to choose
- Find the draughts: On a cold, windy day feel around doors, windows, letterboxes and skirting to locate the worst gaps.
- Under-door vs frame: Use a brush strip or snake for the gap under a door, and adhesive seals for gaps around the frame.
- Renter-friendly: Adhesive foam/silicone seals and weighted snakes need no drilling and come off cleanly.
- Don’t block ventilation: Leave trickle vents and extractor fans working — sealing everything can trap moisture and cause condensation.
- Measure first: Check door width and gap size so the excluder fits without stopping the door closing.
Frequently asked questions
Do draught excluders really save money?
Yes, modestly. Sealing gaps around doors and windows reduces the warm air escaping and cold air coming in, so your heating works less hard. They’re inexpensive and pay for themselves over a winter, especially combined with thermal curtains.
Are draught excluders renter-friendly?
Many are. Weighted door snakes need no fitting at all, and self-adhesive foam or silicone seals peel off cleanly. Screw-fixed brush strips are more permanent, so check your tenancy agreement first.
Will draught-proofing cause damp?
It can if you seal a flat too tightly. Keep trickle vents, extractor fans and background ventilation working so moisture can still escape — draught-proof the gaps you don’t need, not the ventilation you do.
Our recommendation
For a lasting fix, the Stormguard brush strip handles under-door draughts; pair it with Vellure adhesive seals around frames. For a no-fit option choose the Marwood door snake, the Hongbaite for wider gaps, or the 94cm strip on a budget.
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