6 Draft-Proofing Fixes That Cut a Winter Heating Bill in One Weekend
Heat does not leave a house evenly. It leaks through a handful of specific gaps — under doors, around old sash windows, through the letterplate, down an unused chimney — and those gaps are cheap to close. A full kit for an average three-bedroom home runs about $40 to $70 in the US, roughly CA$60 to CA$95, or £30 to £55 in the UK, and most of it installs with scissors and a screwdriver.
The order below matters. It starts with finding the leaks so you do not waste tape on a wall that was never leaking, then works from the biggest openings down to the small ones. Each step takes under an hour.