Simple Tips for Cutting Back on Your Utility Bills in the UK
Published 25th of May 2011·Updated 29 April 2026
Reviewed by: Reviewed for accuracy April 2026
UK households can cut their utility bills by £200-£500 a year through a combination of switching supplier, adjusting heating settings, and changing everyday energy habits. The biggest savings come from switching to a better energy tariff, improving insulation, and eliminating standby energy waste.
Short Summary
Switching your energy supplier using an Ofgem-approved comparison site such as Uswitch or MoneySuperMarket is one of the fastest ways to reduce your bills. Households on a standard variable tariff often overpay by £100-£200 a year compared to the best available deal.
Your heating system accounts for around 56% of the average UK household's energy bill, according to the Energy Saving Trust. Lowering your thermostat by one degree, fitting a programmable timer, and ensuring radiators are not blocked or covered can all make a meaningful difference.
Appliances left on standby still use electricity. The Energy Saving Trust estimates that UK households waste around £30-£80 per year on standby power alone. Switching appliances off at the wall costs nothing.
Water efficiency matters most for households on a water meter. Fitting a water-efficient shower head, not leaving the tap running when brushing teeth, and running the dishwasher on eco mode rather than hand-washing under a running tap can all reduce water consumption noticeably.
How can I reduce my gas and electricity bills?
Start by checking whether you are on the best available tariff. If you have not switched supplier in the past 12 months, or if you rolled onto a standard variable tariff at the end of a fixed deal, you are likely overpaying. Use Uswitch, MoneySuperMarket, or the Ofgem-approved comparison tool at simpleenergyadvice.org.uk to compare current rates against your actual usage.
Beyond switching, adjusting how you use energy is the next most effective step. The Energy Saving Trust recommends:
- Setting your thermostat to 18-21 degrees Celsius (the World Health Organisation's recommended indoor temperature range for healthy adults)
- Using a timer to heat your home only when you are in it
- Turning the boiler's flow temperature down to 55-60 degrees on modern condensing boilers, which improves efficiency
- Washing clothes at 30 degrees instead of 40 or 60 degrees, saving around 40% of the energy per cycle
What are the most effective ways to cut heating costs?
Heating is the single largest component of most UK household energy bills. A few targeted changes can produce significant savings:
| Action | Estimated annual saving |
|---|---|
| Turn thermostat down by 1 degree | £50-£75 |
| Fit a programmable or smart thermostat | £75-£130 |
| Draught-proof doors and windows | £25-£50 |
| Insulate loft to 270mm depth | Up to £150 (detached house) |
| Upgrade to an A-rated condensing boiler | £200-£400 |
Loft insulation is particularly cost-effective for older UK homes. Many properties still have either no insulation or insufficient insulation installed decades ago. The Government's Great British Insulation Scheme provides free loft and cavity wall insulation for eligible households, particularly those receiving means-tested benefits or with low EPC ratings. Check eligibility at gov.uk.
How do I reduce electricity waste from standby appliances?
Devices on standby draw a small but continuous current. Common standby energy users in UK homes include television sets, set-top boxes, games consoles (PlayStation and Xbox in standby mode draw 1-2 watts each), microwaves with digital clocks, and desktop computers. Individually the draw is small; across 20 or more devices running all day, the combined annual cost is significant.
The simplest fix is to plug multiple devices into a single extension lead with a switch and turn the whole group off at the wall overnight. Smart plugs, available from retailers including Argos, Amazon, and Currys for around £10-£15 each, can be programmed to cut power automatically after a certain time.
Can I save money on my water bill?
For households on a water meter, reducing consumption directly reduces the bill. A power shower running for eight minutes uses approximately 62 litres of water, according to Waterwise; switching to a four-minute shower and fitting a water-efficient shower head cuts this by more than half. Water-efficient shower heads cost around £15-£40 and require no plumber to fit.
For households not on a meter, contact your water company to request a free meter installation. This is usually worthwhile for households with fewer people than bedrooms. Thames Water, Severn Trent, United Utilities, and all other major water companies in England and Wales offer free meter installation on request. You have a right to revert to unmetered billing if your bills increase after switching.
Is solar power worth considering for a UK home?
Solar panels can reduce electricity bills significantly for owner-occupiers, but require upfront investment and are not suitable for all properties. According to the Energy Saving Trust, a typical 3.5kWp solar panel system on a south-facing roof in the UK generates approximately 3,000-3,500 kWh per year and can save around £300-£400 on electricity bills annually at current prices, with additional income possible through the Smart Export Guarantee (SEG) for excess energy exported to the grid.
The upfront cost of a solar installation is currently around £5,000-£10,000 for a typical home, giving a payback period of roughly 15-25 years depending on your usage and tariff. Battery storage can improve the economics for households who are out during peak generation hours. A reputable installer registered with the Microgeneration Certification Scheme (MCS) should be used for any solar installation.
Frequently Asked Questions
What uses the most electricity in a UK home?
Heating accounts for the largest share of energy use overall, but in terms of electricity specifically, electric showers, tumble dryers, electric ovens, and fridge freezers are the biggest consumers. Electric storage heaters and immersion heaters are particularly expensive to run. The Energy Saving Trust's home energy calculator at energysavingtrust.org.uk lets you estimate your own breakdown.
Does using a smart meter reduce your bills? A smart meter does not reduce your bills by itself, but it gives you real-time data on your energy consumption that can change your behaviour. Energy companies including British Gas, EDF, E.ON, and Octopus are all rolling out smart meters to customers. Requesting a smart meter is free and does not lock you into a particular tariff.
Is it cheaper to leave the heating on low all day or turn it on when needed?
The Energy Saving Trust is clear on this: it is cheaper to heat your home only when you need it using a timer, rather than leaving a constant low level of heat running all day. The idea that it costs more energy to heat a cold home from scratch than to maintain a constant temperature is a myth; the longer your home is warm, the more heat it loses to the outside.
How do I know if my home is well insulated?
Your home's Energy Performance Certificate (EPC) gives an overall efficiency rating from A to G and lists specific recommendations for improvement. You can find your EPC at gov.uk/find-energy-certificate. An EPC rating of D or below usually means there are cost-effective insulation improvements available. A draught test on a windy day (feeling around window frames, letterboxes, and skirting boards) is also a simple way to identify where heat is escaping.
What help is available if I cannot afford my energy bills?
Several schemes exist for UK households struggling with energy costs. The Warm Home Discount provides a £150 rebate on electricity bills for eligible low-income households. The Winter Fuel Payment is available to households with someone born on or before a specified date (eligibility rules changed in 2024; check at gov.uk for current criteria). The Priority Services Register, available through all energy suppliers, provides additional support for vulnerable customers. Citizens Advice on 0800 144 8848 can help identify all schemes you may be eligible for.