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Keep your boiler running smoothly.

From combi boilers to servicing, we'll help you find the answer to your boiler questions.


Get £150 off a new boiler.

If you’re an E.ON Next customer, use code CUSTOMER150 to save £150 when you buy a boiler through E.ON. T&Cs apply.

Get a new boiler

What type of boiler do you need?

Get help understanding the advantages and disadvantages of the three main types of boilers and find the one that's right for your home.

Combi boiler

Combi boilers.

Great for smaller homes as they can fit in a cupboard and you don’t need a hot water cylinder or cold water storage tank, so they don't take up any loft space either.

More on combi boilers.

Regular boiler

Regular boilers.

If you often use hot water in multiple places at the same time, consider a regular or condensing boiler, linked to a hot water cylinder and a cold water storage tank.

More on regular boilers.

System boiler

System boilers.

Designed for homes with more than one bathroom, system boilers give you a constant supply of hot water to multiple taps. There’s no need for the tank in the loft either.

More on system boilers.

E.ON's energy experts can help you get the right boiler for your home by understanding your energy use, how many people live in your home and the size of the property.

Get warm and cosy and save up to £540 on your annual gas bill^.

Plus if you’re an E.ON Next customer save £150 when you buy a boiler through E.ON. T&Cs apply.

Get a new boiler

How well is your boiler running?

We all know when a boiler is running well, mostly due to how warm the house is and we've not just stepped into a shower that could freeze us in seconds.

Of course, boilers do sometimes need replacing. With the average boiler lasting about 10-15 years, it's always good to recognise the signs of your boiler having issues. These include:

  • Your boiler is leaking.

  • Your boiler is making strange noises.

  • Your boiler's pressure drops.

  • Your boiler's pressure is too high.

  • Your boiler is overheating.

If your boiler is doing any of these things, we've put together a handy guide to show you your options and whether you need to replace your boiler.

Our guide to boiler problems

Enjoy an award-winning Worcester Bosch boiler.

When you're picking a new boiler, you might not need to look any further than the Worcester Bosch Greenstar 4000 combi boiler. It's a leading Which? Best Buy boiler, perfect for small to medium sized homes.

  • Easy to adjust hot water and heating settings.

  • User-friendly controls and clear information display.

  • Up to a 10 year warranty.

Find out more about the Worcester Bosch boiler.

We're Which? Trusted Traders.

E.ON's boiler installations are a Which? approved service.

E.ON have the national accreditations for boiler and air source heat pump installation services in the UK, giving you the reassurance you need when picking a sustainable solution for your home.

Get covered by HomeServe.

We've partnered with HomeServe to offer you a range of covers for your home, including boiler and central heating cover. See how you can protect your home and find the right cover for you. T&Cs apply.

What can HomeServe cover

Here are some of our boiler FAQs.

Read more about boilers.

Is your boiler ready for winter?

We've put together a helpful guide to help you stay a step ahead.

^An average household could save up to £540 on their annual gas bill. Savings information for boilers in the UK provided by the Energy Saving Trust, based on a detached house with a boiler rating of G.