Last updated: April 2026
Actionable tips to lower your gas and electricity bills without sacrificing comfort, from quick wins to longer-term investments.
Start with changes that cost nothing: turn your thermostat down by 1°C (saves ~£80/year), switch off appliances at the plug instead of standby (saves ~£60/year), only boil the water you need in the kettle, use a 30°C wash cycle for laundry, close curtains at dusk to retain heat, and draught-proof doors and windows with self-adhesive strips (under £20). These changes alone can save over £200 per year.
Heating accounts for over 50% of a typical energy bill. Set your boiler flow temperature to 60°C for a condensing boiler (many are set too high at 75-80°C). Use radiator thermostatic valves to heat only occupied rooms. Consider reducing heating time by 30 minutes per day. If your boiler is over 15 years old, replacing it with a modern condensing boiler could save £200-£300 per year.
Good insulation is the most effective long-term investment for reducing heating bills. Loft insulation (270mm recommended) costs around £300-£400 and saves ~£200/year. Cavity wall insulation costs £400-£600 and saves ~£180/year. Draught-proofing costs under £200 and saves ~£60/year. Government grants are available through ECO4 and the Great British Insulation Scheme for eligible households.
Beyond changing supplier, consider tariff types that reward flexibility. Economy 7 tariffs offer cheaper overnight electricity for storage heaters. Time-of-use tariffs like Octopus Agile charge different rates throughout the day. If you have an EV, an EV-specific tariff can cut charging costs by 50% or more. Always compare the total annual cost, not just the headline rate.
Replace old appliances with A-rated models when they need replacing. LED bulbs use 80% less electricity than halogen. A modern A-rated fridge-freezer uses 70% less energy than a 10-year-old model. Use a microwave instead of an oven for small meals (uses 5x less energy). Air-dry laundry instead of using a tumble dryer when possible (saves ~£60/year).
Heating is by far the largest energy cost, accounting for around 53% of a typical UK energy bill. Hot water accounts for about 13%, appliances and lighting around 15%, and cooking about 3%. Focusing on heating efficiency offers the biggest savings potential.
Yes, LED bulbs use around 80% less electricity than traditional halogen bulbs and last 15-25 times longer. Replacing all bulbs in a typical home with LEDs saves approximately £40-£60 per year. At current prices, an LED bulb pays for itself within a few months.
Yes, the ECO4 scheme and Great British Insulation Scheme provide grants for loft insulation, cavity wall insulation, and other measures. Eligibility depends on your income, benefits status, and property type. Contact your energy supplier or local authority to check if you qualify.
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Information sourced from Ofgem, Citizens Advice, and DESNZ. Last updated April 2026.
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