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Last updated: 22 April 2024

Boiler Comparison: Prices and Quotes in the UK 2024

Compare boiler prices in the UK

The process of finding and installing a new boiler can take a lot of time and requires some careful consideration. Beyond simply comparing new boiler prices, you should also be aware that the overall price you'll have to pay will also include the cost of installation. 

When conducting a boiler comparison, it's important to also consider factors such as energy efficiency, output rating, and warranty options. By thoroughly researching and comparing different boiler types, you can ensure that you make an informed decision and find the best boiler for your needs.

Therefore, finding the right boiler type, from the right brand, and for the fairest price is not always easy. Having said that, replacing your boiler will not only improve the quality of your heating and hot water but it can also help you make significant long-term savings on your energy bills. 

On this page, we'll help you understand everything you need to know when comparing boilers and why it's important to get multiple boiler quotes to compare.

How to Choose the BEST Boiler for Your Home (In 3 Easy Steps!)

It's not just about finding a good-priced boiler, but also about finding out what's good for your home. And to score the best deal you need to know what to look for when it comes to comparing boiler prices, installation quotes, efficiency, types, fuel, and more when conducting a comparison of boilers.

Different installers will offer different prices for installation depending on your location and the size of the company, so it's essential to shop around and get multiple quotes. That's where our boiler quote comparison service comes in handy. We do the hard work for you by providing up to 3 no-obligation and free-of-charge quotes from vetted and reliable installers near you, saving you time and effort while you compare options.

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Compare boiler prices in the UK

When starting to compare boiler prices, it's important to understand what the total price for a new boiler is and what's included in the typical boiler cost. 

By engaging in boiler comparison, you can consider a number of factors such as energy efficiency, the boiler’s output size, warranty options, and additional features. This allows you to gain the necessary insight to make an informed decision and find the best boiler that meets your specific needs and budget. 

By thoroughly researching and comparing different boiler models, you can ensure that you are getting the most value for your money.

You can expect the average boiler replacement costs to range anywhere between £2,000 - £6,250 (including installation). The price range is so large because the typical boiler cost usually includes the cost of the following:

We'll break each of these down in more detail later on. For now, we've summarised the average total costs in the table below that you can refer to when you compare boiler prices in the UK.

Typical Cost of Boilers in the UK

Combi boilerSystem boilerConventional boiler
Budget models£2,000 - £4,400£2,000 - £4,400£2,000 - £4,400
Mid-range models£2,000 - £4,400£2,500, - £4,800£2,500 - £4,800
Premium models£2,600 - £5,500£2,900 - £5,500£2,900 - £6,250
*includes typical boiler installation cost (£500 - £1,000)

Compare boiler payback periods

Nowadays, when doing a boiler price comparison you don't need to be as concerned with getting a very inefficient boiler. That's because, since 2018, Boiler Plus has required all boilers to have at least 92% energy efficiency. 

Considering that the average lifespan of a boiler is 10 to 15 years, you could pay back the cost of your boiler and continue to profit from it for years to come. You need to be mindful that as boilers near the end of their lifespan, they tend to lose efficiency and you will end up profiting less over time. In the table below, you can compare the boiler efficiency and how long it will take you to pay off the boiler.

How much money you can save annually by switching to an A-rated energy-efficient boiler for a detached house in Great Britain

Old boiler ratingAnnual SavingsPayback Period
D (78%-82%)£2857 – 22 years
E (74%-78%)£3456 – 18 years
F (70%-74%)£4405 – 14 years
G (70%)£6303 – 10 years
*average boiler cost is £2,000 – £6,250 (including installation)

All of the prices we provide you are based on actual installations. With that being said, they're still considered estimates because not all boiler installations nor installers are the same. You're likely to pay a different price and have a different payback period than your neighbour for the same boiler simply due to how complex it can be to install a new boiler. 

We've found that the smartest way to navigate this is to engage in the comparison of boiler quotes from multiple local installers who will be able to provide you with more exact quotes for their services. Rather than call several installers individually to request quotes, save yourself the extra time and effort by leaving it to the team at GreenMatch. We provide an easy and free solution to get comparison quotes from multiple installers.

You can get started and compare new boiler prices by clicking the button below and answering a few questions about what kind of boiler you're looking for. You'll get up to 3 free quotes that you can choose from with no obligations.

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Boiler comparison: Type of system

Standard gas boilers are available in three different types: combi, system, or conventional boilers. There are some key distinguishers that can help you identify the right kind of boiler for your home. 

#1 Combi boiler 

Combi boilers are the most common type of boiler in the UK. Combis provide mains pressure water on demand. With no external units, you can save on installation time and costs, as well as save space in your home. 

These boilers are best suited for small to medium-sized homes because they use a lot of energy to provide space heating and domestic hot water from one, compact unit. 

Therefore, while combi boilers are available in outputs as high as 42kW, they will use more energy to provide this, making it more cost-effective for larger homes to install a system or regular boiler. 

Check out our combi boiler comparison page to compare combi boiler prices

#2 System boiler 

A system boiler does come with an external cylinder for hot water storage. While this will require some additional home space, with this addition your boiler can provide plenty of hot water for space heating and domestic hot water. As per our expertise, this makes them suitable for medium and larger homes with multiple bathrooms. 

System boilers are similar to regular boilers in that they are powerful enough to supply high volumes of heat and hot water to busy households with multiple bathrooms. 

But, what is the best boiler for a large house? Considering the home space that can be saved, and the guaranteed mains water pressure, we say that it's a system boiler. 

#3 Conventional boiler

A conventional boiler is one of the oldest boiler types found in the UK. A conventional boiler includes an external hot water cylinder as well as a cold water tank, usually found in the loft. 

Unlike combi or system boilers, a conventional boiler is not fed water directly from the mains supply, but instead from the cold water tank. With these 2 additional units, you can expect a conventional boiler to take up some significant home space. 

For these reasons, and our personal experience, we only recommend fitting a new conventional boiler if you already have one in place. This way, you won't have to remove the cold water tank which will save you on installation costs. 

Additionally, upgrading to another boiler type might also have to include upgrading your radiators and pipework to better withstand mains water pressure.  

To learn how long it will truly take to replace your existing boiler or upgrade your entire heating system, then we recommend you consult a professional heating installer. 

Fill in our form and we will put professional installers directly in touch with you. They can then offer bespoke advice as to the best type of boiler, and offer a tailored fixed quote for their installation services. 

With GreenMatch, you can receive up to 3 quotes for free. This way, you don't need to make a decision until you're absolutely sure you've found the right installer for the job and that you're getting the best deal possible. You're also under no obligation to accept any of the quotes you receive.

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Compare fuel types

While the main fuel type of boilers is gas, there are other fuels you can choose from. As you'll notice if you compare boiler prices across fuel types, the fuel your new system uses will have some bearing on the overall price. Below, we've listed the possible fuels that are available on the market.

#1 Gas

Gas boiler fuel

Most homes in the UK are connected to the main gas grid, making gas-fuelled heating a popular option. Gas boilers are usually compact units that will fit inside a standard kitchen cupboard. They will also need to be installed along with a flue pipe so that waste gases can leave the home.  

All modern gas boilers use condensing technology which captures heat that would otherwise be lost in waste gasses and converts it into usable energy. This makes new gas boilers highly efficient.

Gas Boilers

England, Scotland & WalesNorthern Ireland
Fuel costs (p/kWh)8.012.87
Standing charge (£/year)106.26-
Carbon dioxide equivalent factor (kgCO2e/kWh)0.2130.213

#2 LPG

LPG boiler fuel

Liquid petroleum gas (LPG) is a combination of natural gas and crude oil that is used as fuel, mostly for homes off the gas grid. Most gas boilers come with the option to convert to LPG meaning there's a wide range of options available.

LPG boilers are popular since LPG burns more efficiently than oil, and produces fewer carbon emissions than oil boilers. Similarly to oil boilers, LPG models require an external storage tank.

LPG Boilers

England, Scotland & WalesNorthern Ireland
Fuel costs (p/kWh)8.711.3
Standing charge (£/year)63.0063.00
Carbon dioxide equivalent factor (kgCO2e/kWh)0.2400.240

#3 Oil

Oil boiler fuel

Oil boilers make popular options for homes off the main gas grid. Currently, oil-fuelled heating is one of the cheapest options in the UK. They also share similar efficiencies to gas boilers thanks to condensing technology. 

However, oil boilers are typically more costly to install and maintain since they come as large units along with an outdoor oil tank, which will need to be refilled periodically. What's more, of all the most common fuel types, oil is by far the most carbon-intensive. 

Oil Boilers

England, Scotland & WalesNorthern Ireland
Fuel costs (p/kWh)9.06.9
Standing charge (£/year)--
Carbon dioxide equivalent factor (kgCO2e/kWh)0.2980.298

#4 Electric

electricity boiler fuel

Even if you're connected to the gas grid, you may still be tempted to replace your gas boiler with an electric model. Electric boilers are highly efficient since they run on electricity and not on the internal combustion of fuel. This means there is no heat loss and typically 99-100% of every kW spent is converted into energy. 

If you're looking for cheap boilers, then electric boilers are among the best in terms of upfront and installation costs. However, the downsides to electric heating are the running costs. Currently, the price of electricity per kWh is 4-5 times as much as gas in the UK. However, exceptionally high running costs can be avoided through the Economy 7/10 tariffs.

If you're wondering what is the best electric boiler to buy, then be sure to check out our electric boiler comparison page. 

Electric Boilers

England, Scotland & WalesNorthern Ireland
Fuel costs, standard (p/kWh)30.016.4
Fuel costs, off-peak Economy 7 tariff (p/kWh)17.668.7
Standing charge (£/year)193.3336.89
Carbon dioxide equivalent factor (kgCO2e/kWh)0.2250.234

#5 Biomass

biomass boiler fuel

Biomass boilers are fuelled by wooden biomass, typically in the form of pellets, chips or logs. Biomass boilers are one of the cheapest options in terms of fuel costs, however, the biomass boiler cost can be very high, with prices ranging up to £15,000 in some cases.

Biomass boilers make sustainable, and more affordable, fuel options. However, before installing a biomass boiler, you should first ensure you have enough home space for the large boiler unit, as well as plenty of dry, sheltered space to store the wooden fuel. This is what makes biomass heating popular in rural homes. 

For this reason, conducting a boiler price comparison is also necessary to ensure that you are getting the best deal from a biomass boiler.

As long as the supply of wood is sustainably managed, then biomass heating makes a more sustainable option than burning fossil fuels. This is because wood is a renewable resource that releases far fewer carbon emissions as it burns. 

Biomass Boilers

England, Scotland & WalesNorthern Ireland
Fuel costs, pellets (p/kWh)13.89.1
Standing charge (p/day)--
Carbon dioxide equivalent factor (kgCO2e/kWh)0.0480.048

Luckily, we can guide you through how switching fuel types will affect your final total new boiler costs. In this regard, GreenMatch can offer invaluable assistance by providing you with up to 3 free and non-obligation quotes from our trusted network of suppliers, so you can gain the necessary insight into what type of fuel suits you best without the pain of investing countless hours in extensive research. Get started by simply clicking the button below:

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Compare boiler brands

There are lots of reputable, well-established boiler manufacturers operating within the UK boiler market today. 

When conducting a boiler price comparison, you may be more attracted to a brand that offers more affordable price points than one that offers innovative smart features. In general, we recommend that you always check customer reviews and testimonials, and look out for industry awards and endorsements. 

Use the buttons below to explore the top boiler brands:

Alpha Logo
Ariston Logo
Baxi Logo
Biasi Logo
Worcester Logo
Ferroli Logo
Glow Worm Logo
Ideal Logo
Lochinvar Logo
Potterton Logo
Vaillant Logo
Viessmann Logo

Guide to compare boiler quotes

The comparison of boilers isn't the only way that you can keep the overall costs down. The final total price for a new boiler will not only come down to the price for the boiler alone but also the price of installation. Installation costs are based on the associated parts and labour and will tend to rise the more time-consuming and complex an installation becomes. 

To ensure you're receiving the best possible deal for your new boiler installation, then we recommend you compare boiler quotes from multiple installers. Doing so allows you to go with the installer who offers the most competitive quote. 

However, with so many installers out there, and with a wide range of potential costs, it can be difficult to objectively compare boiler prices and know for sure that you’re paying a fair and accurate price from a reliable installer

This is where GreenMatch can come in to make your life a whole lot easier. We have a whole network of licensed, vetted installers ready to offer you free quotes for installation. All you have to do is fill in your details in our form (linked below), and soon you'll be contacted by up to 3 installers who can assess your needs and offer tailored quotes. 

What's more, we will only connect you with the installers based closest to you. Local installers mean you can take advantage of the best local rates, and avoid expensive installation costs from nationwide companies. 

Get started today by clicking the button below! All of our quotes are free and come with no obligation.

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