How To Save Money on Your Energy Bills with Simple Changes

A radiator blocked by furniture, heating running longer than needed, or frequent hot water use can all increase energy demand. Over time, these issues add up to higher monthly costs, making it difficult to see what is driving the increase.

Learning how to save money on your energy bills usually starts with simple adjustments, including boiler controls. Improving heating efficiency, reducing unnecessary hot water use, and preventing heat loss can all help lower household energy consumption.

This guide explains practical changes you can make around your home to improve efficiency and reduce your energy bills.

Why Energy Bills Keep Rising in Many UK Homes

Energy bills often rise when a home needs more energy to maintain a comfortable temperature or when everyday use gradually increases. The government notes that more than 90% of UK homes are heated by fossil fuels, and that home heating accounts for around one-third of the UK’s total gas use [1].

If heat escapes through windows, doors, or floors, your heating system has to run for longer to keep rooms warm. The government also highlights that improving home efficiency could reduce heating bills by around 20%, underscoring how much energy is lost through everyday inefficiencies.

Appliance use also plays a role. Heating water, running washing machines, and using hot water taps throughout the day all increase demand on your heating system.

In some homes, rising energy or water costs can also point to hidden problems such as leaks. Our article high water bill? How to tell if you have a hidden water leak explains how unnoticed leaks can increase household bills.

Common causes of higher energy costs include:

Heat escaping through windows, floors, and gaps around doors.
Heating running longer to maintain a steady indoor temperature.
Frequent hot water use from showers, washing, and taps.
Appliances drawing electricity throughout the day.

Once you understand where energy is being used, the next step is improving how your heating system operates.

3 Simple Heating Adjustments That Can Lower Your Energy Bills

Heating costs are affected not only by insulation and draughts. How your heating system is controlled also affects how much energy your home uses each day. If heating runs for longer than necessary or warms rooms that are not in use, energy costs can rise quickly.

Heating controls allow you to manage temperatures more accurately and reduce wasted energy. The Energy Saving Trust (EST) estimates that installing and using heating controls effectively could save households around £110 per year in Great Britain [2].

If your heating feels uneven across the house, it may be worth reviewing your boiler controls so the system runs only when needed and at the right temperature.

Simple adjustments that can improve heating efficiency include:

Lower the thermostat slightly rather than switching heating fully on and off.
Set heating timers so rooms are only warmed when needed.
Thermostatic radiator valves to control heat in individual rooms.

3 Practical Ways to Reduce Hot Water Energy Use at Home

Hot water use can increase energy bills quickly because it relies on your heating system throughout the day. Ofgem recommends starting with small changes that reduce the amount of hot water your home uses or the effort your boiler needs to work to provide it [3].

If you have a combi boiler, Ofgem highlights that lowering the hot water temperature can make the system cheaper to run. This simple adjustment can reduce energy use without affecting day-to-day comfort.

Practical ways to reduce hot water energy use include:

Keep showers to around ten minutes where possible.
If you have a combi boiler, lower the hot water temperature setting.
If you have a hot water cylinder, fit a cylinder jacket to reduce heat loss.

Ofgem also recommends washing clothes at 30°C where possible, as modern detergents still clean effectively at lower temperatures while using less energy.

3 Home Improvements That Help Keep Heat Inside Your Home

A large share of household heating costs comes from heat escaping through poorly insulated parts of the home. In older properties, roofs, walls, and floors can allow significant amounts of warmth to escape during colder months.

EST estimates that around 25% of heat is lost through the roof, about 33% through walls, and roughly 10-20% through the floor in a typical uninsulated home [4].

Improving insulation in these areas helps your heating system operate more efficiently and reduces the energy needed to keep rooms comfortable.

If you are unsure how warm your home should be during colder months, our guide, what’s the coldest you should let your house get? explains recommended temperature ranges for comfort and efficiency.

Practical ways to reduce heat loss include:

Adding loft insulation to slow heat escaping through the roof.
Sealing draughts around windows and doors.
ng radiator reflector panels to push heat back into the room.

EST also recommends insulating hot water tanks and exposed pipes to reduce wasted heat and improve overall efficiency.

When Replacing an Older Boiler Can Lower Your Energy Bills

Heating and hot water account for more than half of the energy used in many homes, so boiler efficiency directly affects energy bills. EST explains that modern condensing boilers are designed to capture and reuse heat from gases that would normally escape through the flue [5].

If your boiler is older, replacing an older boiler can reduce running costs, especially when combined with modern heating controls.

EST estimates that upgrading to an A-rated condensing boiler with a programmer, room thermostat, and thermostatic radiator valves can deliver noticeable annual savings for gas-heated homes in Great Britain. Exact savings depend on the size of the property and its insulation.

A professional installation also helps ensure the system operates safely and efficiently. Well-planned, efficient heating systems help maintain steady temperatures while avoiding unnecessary energy use.

Small Changes Around the Home Can Reduce Energy Bills

Reducing energy bills often starts with practical improvements around the home. Small changes to heating controls, hot water use, and insulation can all help reduce household energy consumption. Once these basics are in place, it becomes easier to see whether your heating system is still working harder than it should to keep your home comfortable.

Greenstar supports homeowners across Dorset and the South Coast with clear advice, tidy workmanship, and experienced engineers who take pride in getting the job done properly. If you would like to see examples of recent work, you can explore our case studies to view previous projects.

Call 01202 355 344 or arrange a free consultation to talk through your heating requirements.