Heating is 55% of your energy bill — and where most savings live
The single most reliable change is reducing the thermostat by one degree. The Energy Saving Trust puts the saving at £115 per year for a typical semi-detached. Most households adjust within 48 hours and stop noticing. Check your energy direct debit balance too — many UK households sit in credit by £200–£400 because direct debits were set too high. Log into your supplier account and request a refund if your credit exceeds one month's payment.
Draught-proofing doors, windows, letterboxes and loft hatches costs £50–£100 in materials for a whole house and saves around £60 per year — paid back within two years and continuing indefinitely after that.
Meal planning cuts food spending by 15–25% in the first month
UK households waste around £1,200 worth of food per year (WRAP, 2024). Almost all of it is avoidable. The mechanism is the same in most households: shopping without specific meals in mind. The fix: decide what you will cook before you write the list, not after. Five specific dinners, a check of what you already have, then a list covering only what those meals need.
Independent basket comparisons consistently show Aldi and Lidl are 20–35% cheaper than major UK retailers for equivalent items. A hybrid approach works for most households — discount retailer for staples, existing supermarket for specific branded items.
A quarterly 20-minute audit reliably turns up forgotten charges
Direct debits are excellent at becoming invisible. The fix is a recurring audit every three months: open your bank app, look at all recurring charges, and for each one ask whether you have used it in the past month and whether you would notice if it stopped. Most households find at least one service per audit that fails both tests.
On broadband: call the retentions team before switching. Tell them you have found a cheaper alternative. Providers routinely offer unpublished deals to out-of-contract customers because retention costs less than acquisition. This call typically takes 15 minutes and saves £80–£150 per year.
Sophie Caldwell
Household finance writer · Sheffield. Found something outdated? Get in touch and we will correct it.