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Last updated: 30 October 2023

Boilers installation in London: Find Local Experts

Boilers in London

Looking to improve your central heating system? Replacing an old boiler can make your home more energy efficient while also improving your water flow and/or heating. A boiler installation is not a simple undertaking but it can help cut your bills down if done correctly. Finding the best boiler for your central heating system can be difficult without help. Fortunately, there are many specialists and boiler installers in London that can help you in your search for a new boiler.

All you have to do is fill out a quick and easy 30-second form and we’ll supply you with up to 3 free, non-binding quotes for the professionals who can provide the best boiler installation in London. Click the button below to get started.

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How much does a boiler cost in London?

How much is a new boiler?
Type of boiler Cost excluding installation Cost including installation Average, inc. installation
Combi £500 – £3,000 £1,500 – £4,500 £2,750
System £580 – £3,500 £1,700 – £4,000 £2,790
Conventional £600 – £3,500 £1,700 – £4,000 £2,955
Electric £590 – £2,500 £1,600 – £3,500 £2,790
Biomass £4,000 – £12,000 £6,000 – £21,000 £16,000

The main types of boilers are combi (including gas combis and electric combis), system boilers, and conventional boilers. Their prices can vary in terms of the new boiler cost, efficiency, the parts they use, and the different fuel types they require. Combis tend to be the best in terms of efficiency, with the best combi boiler models reaching up to 98%.

Combi boiler installation in London

Combi boilers are the most energy-efficient type of boiler. These boilers supply hot water on demand and are ideal for single-bathroom houses with lower hot water consumption. Combi boiler installations in London are generally electric and gas, although newer fully electric models are getting popular.

However, switching boilers to a combi may not always be the ideal solution. If you have higher water demand, a combi will not be the most viable solution. Similarly, while electric combis have very high efficiencies, this may not necessarily mean lower costs as electricity per kWh can be more expensive than gas in London.

System boiler installation in London

A system boiler is more suitable for homes or facilities with higher hot water demands. They are ideal for running multiple hot water taps and showers.

System boilers, along with conventional boilers, take up more space than combi boilers. This is due to the need for storage vessels since they do not provide on-demand hot water. System boilers can be powered by various fuel sources, but the most common choice is natural gas. They can also use LPG (liquefied petroleum gas) or electricity as the energy source.

Conventional boiler installation in London

Conventional boilers consist of a boiler unit, an open-vented hot water cylinder (usually located in the loft), and an expansion tank. The system operates by heating water in the boiler and then storing it in the hot water cylinder.

Conventional boilers can run on various fuel sources, including natural gas, oil, or electricity. When it comes to boiler replacements in London, swapping a conventional for other types is easier than installing one (due to the need for the extra elements and pipework that old heating systems require).

How much does it cost to install a new boiler in London?

Installing a boiler usually costs between £1,000 and £1,500 ordinarily. The exact price can depend on the complexity of the installation, what type of boiler is being switched out, and whether you require additional parts. Additionally, any gas boiler installation in London will cost more as it will require a connection to the gas main.

However, since the cost of boiler installation depends on numerous factors, you will have to consult multiple Gas Safe registered engineers. This can be a laborious process, taking days of research to find a trustworthy heating engineer with the right price for you. Luckily, we can speed up the process using our service.

All you have to do is fill out a 30-second form and we’ll do the rest by reaching out to thoroughly vetted installers in London. You can rest assured that the work will be done at the best available price and you’ll receive a cheap boiler replacement. Click the button below to get started and you’ll receive up to 3 free, non-binding boiler quotes.

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What size boiler do I need in London?

Numerous factors can determine the right boiler size for your home:

    • Number of bedrooms
    • Number of radiators
    • Number of bathrooms
    • The insulation in your home
    • Building regulations (if applicable)
The right boiler size for your home
BedroomsRadiatorsBathroomsBoiler size
1-20 to 10118 to 27kW
3-410 to 152 to 328 to 34kW
5 or more15 to 204 or more35 to 43kW

Of course, these numbers apply to the UK in general, so pinning down the exact rate for every London household can be difficult. As a rule of thumb, combi boilers are less useful for households with multiple bathrooms as they produce hot water on demand and this stretches their abilities thin when several taps are operating at the same time.

For higher rates of water flow at the expense of a bit of energy efficiency, both system and conventional boilers can do the trick. However, both of these require extra space for additional components like a hot water cylinder. While they are more adept at providing water for homes with more elaborate needs, they could be less suitable for smaller homes with less space.

If the thought of installing a boiler appears financially burdensome, there are grants available that can help reduce the expenses. The Boiler Upgrade Scheme (BUS) is currently open for applications until 2028 and focuses on the removal of inefficient boilers and the enhancement of homes to meet modern heating standards. If you possess an outdated, inefficient oil or gas boiler, you could potentially qualify for grants of up to £7,500.

Boiler replacement vs repair in London?

It’s hard to decide when you should replace your old boiler or opt for boiler servicing. Even the strictest regiment of boiler maintenance can’t hold the inevitable at bay. As a general rule, here are a few signs you need to ditch your current heating system:

    • Your boiler installation dates back over a decade.
    • Reduced efficiency has led to increased heating costs.
    • Unusual noises are coming from your boiler or heating system.
    • Errors pop up frequently.
    • It’s getting difficult to find replacement components.
    • Your home is more susceptible to the cold.

If the following signs are present, your old boiler might be on its way out. Opting for a new boiler may be far more beneficial in the long run than keeping up with constant repairs. In such cases, opting for a new central heating system may be preferable, especially when it might spare both repair and energy bills.

Boiler brands in London?

Here are some of the top boiler brands operating in London. These prominent names all provide heating solutions across the UK and have a variety of boilers of multiple types and sizes. Many, if not all, of these brands provide extended warranties if the installation is conducted by a fully qualified Gas Safe registered engineer.

1. Worcester Bosch
Trustpilot: 4.6 out of 5 | 32,588 reviews

Worcester

2. Vaillant
Trustpilot: 4.6 out of 5 | 17,335 reviews

Vaillant boilers

3. Ideal
Trustpilot: 4.8 out of 5 | 21,788 reviews

Ideal boiler

4. Baxi
Trustpilot: 4.5 out of 5 | 46,103 reviews

Baxi boiler

5. Viessmann boilers
Trustpilot: 4.4 out of 5 | 3,632 reviews

Veissmann boilers

Regardless of what manufacturer you opt for, you’ll still need a boiler company in London.

If you’re on the hunt for a new boiler, you’ll definitely need an installer you can trust. Finding a boiler installer in London is a difficult task to do on your own, with all the days of research and compiling prices. Do away with the headache of all that and let us take the wheel. Our service can quickly and easily provide you with the best prices from up to 3 Gas Safe registered engineers.

All you need to do is fill out a 30-second form and we’ll handle the rest. There are tons of trusted professionals in London who are up to the task of installing your new central heating system or replacing a boiler. Click the button below to get started and find the cheapest boiler installation in London from seasoned professionals.

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