Draught-proof doors and windows
Gaps around doors, windows and letterboxes let warm air out and cold air in.
device: Windows & doors
problem: Cold or draughty home
problem: High heating bills
topic: Insulation & draught-proofing
What to do
- On a windy day, feel for draughts with the back of your hand.
- Fit self-adhesive strips around windows and doors.
- Add a letterbox brush and keyhole cover.
- Don't block air bricks, vents or extractor fans.
Useful tools and guides
Related tips
Top up loft insulation to 270mm
If your loft has little insulation, topping it up to the recommended 270mm cuts the heat escaping through your roof.
Check for cavity wall insulation
Uninsulated cavity walls let a large share of a home's heat escape.
Insulate your hot water cylinder
An uninsulated cylinder loses heat all day. A fitted jacket keeps stored water hot for longer.
Make the most of natural light
Using daylight well delays the point when you need to switch lights on.
