Under-door gaps
Door sweeps, brush strips and fabric draught excluders may help reduce unwanted airflow beneath suitable doors.
Little gaps can make a room feel uncomfortable. Discover draught excluders, self-adhesive seals and window insulation ideas worth exploring before replacing a perfectly good door or window.
Explore Draught-Proofing Products on Amazon →Amazon affiliate link • Compare sizes, materials and reviews before buying.

Illustrative comparison. Results vary by installation, door condition and product.
A small gap can have a big effect on comfort. Match the problem to a product suited to the surface and measurements.
Door sweeps, brush strips and fabric draught excluders may help reduce unwanted airflow beneath suitable doors.
Self-adhesive foam or rubber seals can help with certain small gaps. Measure carefully and check that windows still close properly.
Letterbox brushes and covers are simple options to explore without replacing the whole front door.
Check the source of the draught before choosing an inexpensive DIY solution.
Check around frames and beneath doors on a windy day. Keep ventilation openings unobstructed.
Measure the gap, assess the surface and compare product dimensions, instructions and suitability.
Follow the maker’s instructions, test smooth opening and closing, and check for any remaining airflow.
Many self-adhesive strips are designed for simple DIY fitting, while other seals may require trimming, screws or different preparation. Check the specific instructions.
No. Suitability depends on the opening mechanism, gap size, materials and ventilation requirements. Do not block trickle vents or required airflow, especially around fuel-burning appliances.
Reducing unwanted draughts can improve comfort, but any bill savings depend on your home, heating use and installation. We do not promise a specific saving.
If a seal is damaged, check the door or window manufacturer’s guidance first. Some repairs or replacements need a specialist, especially where safety, ventilation or weatherproofing is affected.
Explore door sweeps, sealing strips, letterbox brushes and more in one place.
Browse Draught-Proofing Solutions on Amazon →As an Amazon Associate I earn from qualifying purchases. Some links are affiliate links; this does not increase your price. Product suitability and results vary.