Heating is 55% of the average UK energy bill — and where most of the savings are
The single most reliable change is reducing the thermostat by one degree. The Energy Saving Trust estimates this saves around £115 per year for a typical semi-detached. Most households adjust within 48 hours. Before that: log into your energy supplier account and check your balance. Many UK households sit on £200–£400 in credit because direct debits were set too high. Call and request a refund if your credit exceeds one month's payment.
Draught-proofing the whole house — doors, windows, letterboxes, loft hatch — costs £50–£100 in materials and saves around £60 per year. Paid back within two years, then saving indefinitely. Requesting a free smart meter makes energy use visible in real time and consistently reduces consumption without any further effort.
£1,200 goes in the bin every year — almost none of it needs to
WRAP puts average household food waste at £1,200 per year. The cause in most cases: buying food without specific meals in mind. The fix: decide what you are going to cook before you write the shopping list. Five dinners. Check what you have. Write a list covering only what those meals need. Households that start doing this consistently spend 15–25% less on food within the first month.
Independent comparisons show Aldi and Lidl are 20–35% cheaper than major UK retailers for equivalent items. For a household spending £150 per week, that is up to £2,700 per year. A hybrid approach — discount retailer for staples, existing supermarket for specific brands — captures most of the saving with minimal disruption.
The money leaving your account that you have stopped thinking about
Direct debits are very good at becoming invisible. A quarterly 20-minute audit fixes this: open your bank app, look at all recurring charges, and for each one ask whether you used it this month and whether you would notice if it stopped. Most households find at least one forgotten charge per audit.
On insurance: set a reminder six weeks before each renewal. Compare on two sites. Either switch, or use the cheaper quote to negotiate with your current insurer. Most households save £100–£400 on home insurance by doing this once a year. On broadband: call the retentions team first. Unpublished deals are routinely available for out-of-contract customers.
Nadia Osei
Household finance writer · Birmingham. Found something outdated? Get in touch and we will correct it.