Energy prices have been a major concern for many UK households, especially in recent years.
Whether you’re trying to cut down because of cost-of-living pressures or just want to be more efficient, reducing energy bills doesn’t have to mean living in a freezing house or giving up hot showers.
With the right approach, you can lower your energy use while staying warm, well-lit, and comfortable.
This guide gives you practical, achievable tips to reduce energy bills without compromising comfort, no jargon, no gimmicks.
1. Understand your energy usage
Start by reviewing your energy usage.
Check your energy bills or your online energy account. If you use a smart meter, use the in-home display or app to see which times of day use the most electricity or gas.
Compare your usage month by month and seasonally.
Are you using more power at night? Is your heating running longer than needed? Do you work from home?
Use this Energy Consumption Calculator to estimate usage by appliance and identify high-consumption areas.
Tip: If your bill seems higher than expected, submit a manual meter reading to ensure your supplier isn’t overestimating based on historical use.
2. Adjust your thermostat, not your comfort
Turning down your thermostat by just 1°C could save you up to £145 per year on your heating bill, according to the Energy Saving Trust.
Most people won’t feel a noticeable difference in comfort between 21°C and 20°C, but the savings can add up fast.
Do this:
- Set your thermostat to 18–20°C for living spaces.
- Use a programmable thermostat or smart heating system (like tado° or Hive) to reduce heating when you’re out or asleep.
- Only heat the rooms you use. Turn radiator valves down or off in rarely used rooms like guest bedrooms or hallways.
Example: If you’re away from home 9am–5pm on weekdays, program your heating to turn off half an hour after you leave and switch back on 30 minutes before you return.
3. Eliminate heat loss
A significant portion of heating energy is lost through windows, doors, and poorly insulated areas.
Improving insulation and sealing gaps doesn’t just save money, it makes your home feel cosier.
Quick, low-cost fixes:
- Use draught excluders on doors and windows.
- Apply self-adhesive foam strips or silicone sealant around window frames and skirting boards.
- Install thermal curtains or blinds to reduce heat loss through windows.
- Close curtains at dusk to trap warmth inside.
More robust upgrades:
- Insulate your loft. Up to 270mm of insulation could save up to £395 per year in a detached house.
- Add radiator reflector panels behind radiators on external walls to bounce heat back into the room.
- Install secondary glazing film on single-glazed windows. It’s cheaper than replacing the whole unit.
Tip: Check if you qualify for free or subsidised insulation through the Great British Insulation Scheme.
4. Use your boiler more efficiently
Your boiler is likely the biggest energy consumer in your home. Make sure it’s running efficiently without making you uncomfortable.
Actions you can take:
- Reduce the flow temperature on a combi boiler to 55–60°C. This doesn’t change how warm your rooms feel but can improve efficiency.
- Turn off the “preheat” function if your boiler has one. It keeps water hot all day unnecessarily.
- Set your water heating schedule to suit your needs. Don’t heat water 24/7.
Tip: Bleed your radiators annually to remove air pockets that stop them heating up properly.
Advanced move: If your boiler is over 10–15 years old, consider replacing it with a modern condensing model. Use the Boiler Upgrade Scheme for grants if switching to low-carbon alternatives.
5. Replace high-energy appliances with efficient ones
Old appliances, especially fridges, freezers, and tumble dryers, can quietly drain electricity.
When replacing items, check the Energy Label rating.
Prioritise these upgrades:
- Washing machines: A-rated models use 30–50% less energy per cycle. Use 30°C washes where possible.
- Tumble dryers: If you must use one, look for a heat pump model.
- Fridge/freezer: Ensure seals are tight and there’s adequate space for airflow.
- Kettle: Only boil what you need—don’t fill it to the top for one cup of tea.
Check Which? energy-saving appliance reviews before you buy.
Tip: Even small changes help. Using the eco mode on dishwashers and washing machines can reduce energy use by 20–40%.
6. Master your lighting
Lighting accounts for about 11% of the average electricity bill. The fix is simple and immediate, just switch to LEDs.
Do this:
- Replace all bulbs with LEDs. Use this lighting calculator to estimate savings.
- Use lamps instead of overhead lights in the evenings.
- Install motion sensors or timers in rooms like hallways or bathrooms.
Example: Swapping ten halogen bulbs for LEDs could save around £70 per year on electricity.
7. Take control of ‘phantom load’
Many devices use electricity even when not in use.
This ‘phantom load’ from items on standby or chargers left plugged in can cost a typical household £65 a year, according to the Energy Saving Trust.
Simple fixes:
- Use plug socket timers for your router, TV, or printer.
- Unplug chargers and appliances when not in use.
- Install smart plugs that let you schedule or remotely switch off devices.
Tip: Turn off your TV, sound system, and gaming consoles at the wall, not just with the remote.
8. Laundry tips that don’t cost you comfort
Washing and drying clothes eats a surprising amount of energy. But you can reduce this without lowering standards.
Try this:
- Wash at 30°C instead of 40–60°C for everyday laundry.
- Air dry clothes where possible. Use a dehumidifier to speed up indoor drying.
- Use a full load each time. Half loads waste energy and water.
- If you use a dryer, clean the lint filter every time as it helps it run more efficiently.
Tip: Avoid washing in peak hours (4pm–7pm) if you’re on a time-of-use tariff. Check if Economy 7 or Economy 10 could save you money.
9. Rethink your daily habits
Small changes in your daily routine compound over time.
Here are behaviours that pay off:
- Shower for 4–5 minutes rather than 10. Use a water-efficient shower head (sometimes available free from water suppliers).
- Don’t leave the tap running while washing up or brushing your teeth.
- Keep doors shut in heated rooms to trap warmth.
- Use lids on pans to boil water faster and use less energy.
Example: Cutting two minutes off every shower could save a family of four £90 on energy and £100 on water per year.
10. Switch suppliers or tariffs
Don’t overpay for your energy. Although the market has been unstable in recent years, deals are starting to return.
Do this:
- Use Uswitch or Compare the Market to compare tariffs.
- Check if a fixed-rate plan would save you money compared to the Energy Price Cap.
Tip: If you’re on a prepayment meter, you may be paying more per unit. Ask your supplier about switching to a standard credit meter. You have the right to request this if you have no outstanding debt.
Final thoughts: comfort and savings can coexist
You don’t need to sit in the dark or wear three jumpers to lower your energy bills.
With a mix of smart habits, minor upgrades, and intentional use of heating and appliances, you can keep your home warm and your costs manageable.
Start with the easy wins, like adjusting thermostat settings and switching to LEDs.
Then gradually work towards structural improvements like insulation or appliance upgrades.
Think of it as building long-term financial and environmental resilience.
Even small steps, when sustained, can lead to big savings without any loss of comfort.
