Stay protected up to 10 years with manufacturer’s guarantee
Unlimited supply of hot water on demand
Price includes combi boiler fitting, installation, and removal of your old boiler
Save Space
Most combi boilers fit between kitchen cupboards - some will even fit in a standard kitchen cupboard. No water tank means less installation time and many can be fitted in under a day. Our range of Worcester Bosch boilers don't require either a hot water cylinder or storage tank for them to provide hot water.
Fast installation endorsed by Which? Trusted Trader
We have a fast and safe fitting and installation process and can install your new combi boiler from as little as two days.1 And remember, combi boilers bought from us include the cost of boiler fitting, removal of old boiler, in a fast and safe manner. Our boiler services are endorsed by Which? Trusted Trader.
Highly energy efficient
Our combi boilers are A-rated for efficiency – water's heated only when you need it, unlike other types of boiler where you first heat and then store the heated water. So, buying a combi boiler helps save energy and money. Regular servicing will help to keep your boiler working well and we'd recommended booking a boiler service once a year.
Get a brand new combi boiler installed in three easy steps.
Find your perfect combi boiler
Book a video session with our heating experts to find a combi boiler that suits your needs. Or jump right in and get an online quote for a combi boiler in two minutes.
Book an installation
When you buy a combi boiler from us the price includes an installation accredited by Which? Trusted Trader, so you can book a convenient time slot without worrying about any extra installation costs.
Installed from as little as 48hrs1
Our comprehensive boiler fitting and installation service removes your old boiler, flushes your system, and installs your brand-new combi boiler.
Post-installation support
Our award-winning recommended boiler
Our most popular boiler, the Worcester Bosch Greenstar 4000 combi is a leading Which? Best Buy boiler and is perfect for small to medium-sized homes.
The Worcester Bosch Greenstar 4000 comes with:
- Easy to adjust settings for heating and hot water
- Heat water on demand
- The capacity to fill a standard kitchen sink in under a minute
- Clear error codes for quick boiler diagnostics
- User-friendly controls and clear information display
- Freeze-resistant up to -15C.
- Up to ten years warranty
Best of all the Greenstar 4000 is the successor to our most popular combi boiler and is a Which? recommended Best Buy winner.
You can buy a new combi boiler with finance
How is a combi boiler different to other boiler types?
What's the difference between a combi boiler and a condensing boiler?
All new gas boilers including combi, regular and system are now condensing boilers. A combi condensing boiler traps waste gases released through a flue and safely reuse it to heat water, saving energy and fuel. They are more efficient and eco-friendlier than non-condensing boilers. Since the flue gases are used, the flue eventually releases water vapours (hence the term ‘condensing’ boilers.)
Which is the best combi boiler?
The best combi boiler is one that meets your home and energy efficiency. We recommend investing in an A-rated boiler like Worcester Bosch combi boilers. They are powerful, efficient, and save money and energy. They have been a Which? Best Boiler consistently for 10 years. Answer a few questions and find out which boiler is best for your needs.
How long should a combi boiler last?
A Worcester Bosch combi boiler lasts around 10-15 years on average. Its lifespan mostly depends on the make, model and servicing. Some well-cared for Worcester Bosch boilers are still strong after 22 years. A clear sign on how long a combi boiler can last can be found by looking at the manufacturer's guarantee. Standard Worcester Bosch boilers come with five years' guarantee and can be extended up to 10 years.
How much does a new combination boiler cost?
Combination boiler prices vary depending on multiple factors, including the size of your home, the amount of hot water you need, the water pressure in your area, and heat loss. You can buy a combi boiler online from as little as £1,995*. The cost includes combi boiler fitting and installation. We also offer flexible payment options to make buying a combination boiler affordable and easy, with two years interest-free credit.
Is there an extra cost for the installation of a combi boiler?
No. The price of a combi boiler bought from us covers the cost of boiler fitting, removal of old boiler, and fast, safe installation.
The legal stuff
† E.ON Energy Installation Services Limited acts as a credit broker not a lender and work exclusively with Creation Consumer Finance Limited who acts as the lender. Credit subject to status, terms and conditions apply and can be found at eonenergy.com/terms-and-conditions/eon-installation, E.ON reserves the right to amend its finance offering at any time and may withdraw at short notice. E.ON UK plc is an Introducer Appointed Representative of E.ON Energy Installation Services Limited who are authorised and regulated by the Financial Conduct Authority in relation to credit broking services under number 750410. Registered in England and Wales under company number 09965944 with its registered office at Westwood Way, Westwood Business Park, Coventry, CV4 8LG.
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