How to draughtproof your home

● If you can see light around a door or window, or hear whistling, then air may be getting in and out.To find less obvious leaks, wet your hand and hold it in front of doors, win- dows and other openings.You’ll feel any draught on your damp hand.

● Draughtproof doors and windows with foam strips or permanent mouldings. Use a permanent draught excluder or ‘door sausage’ to seal a gap at the bottom of a door.

● Seal narrow gaps with foam seals or mouldings. If that isn’t possible, use a liquid caulking compound. Latex- and silicone-based sealants are the least toxic. Exterior caulking products may emit toxic fumes.

● Window panes cause up to 20 per cent of heat loss in winter, so make sure you also cover win- dows with curtains and a pelmet.