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Last updated: 11 July 2024

New Boiler Costs in the UK: How Much Are They in 2024?

New boiler costs in the UK
  • New boiler costs range from £500-£3,500 before installation.
  • The cost of a new boiler depends on the boiler type, model, manufacturer, what boiler it’s replacing, and the fuel source.
  • Installation an energy-efficient boiler can save households £1,080.
  • You can save up to £7,500 with grant schemes, such as the Boiler Upgrade Scheme and ECO4, to help you improve your home heating efficiency.

Are you relying on an outdated, rundown boiler? Did you know that the price of continuous repair and boiler maintenance will soon outweigh new boiler costs? Rather than waiting for the inevitable breakdown, you should consider the benefits of a new boiler

A modern, energy-efficient boiler will bring down monthly bills and you can rest easy knowing you are safe from paying for sudden repairs. In this article, we’ll take you through the various costs that you will encounter when sourcing and fitting a new boiler. With this in mind, you can make smarter decisions that help curb the average new boiler costs.

Continue reading to learn more about what factors into boiler expenses, or check out our explainer video below:

New Boiler Cost Breakdown - What to Expect?

Are you interested in a new boiler replacement? Then you'll need an installer who can give you the best prices and ensure a professional installation process. However, finding one you can trust can take days of rigorous research and painstaking price comparisons. Luckily, we have a quicker and easier alternative.

Our service can provide you with up to 3 free, non-binding quotes from trusted installers in our network. Why not let us take the wheel and find you all the best prices from thoroughly vetted professionals? Click the button below and fill out a 30-second form to get started.

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How much does a new boiler cost?

How much is a new boiler?
Type of
boiler / Fuel
source
Cost
excl.
installation
Cost inc.
installation (£1,000 - £1,500)
Average
inc.
installation
Combi£500 - £3,000£1,500 - £4,500£3,000
System£580 - £3,500£1,580 - £5,000£3,290
Conventional £600 - £3,500£1,600 - £5,000£3,050
Electric£590 - £2,500£1,590 - £4,000£2,795
Biomass£4,000 - £12,000£6,000 - £21,000£13,500

Drawing from our experience, the average new boiler cost ranges from £500 - £12,000 before installation. Where your new boiler falls within this range largely depends on the type of boiler you go for. The table above summarises these cost differences but it should be noted it can only provide estimates as prices can vary due to location and household needs.

The cost range for a new boiler varies for a few reasons. Firstly, the brand and size of the boiler you choose can make a difference. Well-known brands such as Worcester Bosch or Viessmann can charge more simply for their name.

Fuel types and the size of your boiler can also impact cost, as the larger (more powerful) it is can often mean it is more expensive. This is, however, something an experienced installer can help with, as lesser-known brands can sometimes offer the same performance level of boiler, just without the expensive brand attached! 

The second major cost factor to be aware of is the complexity of your installation. If you wish to change from one boiler type to another (e.g. combi to system) it can take extra work and additional parts to complete the job. In contrast, if you need a straightforward replacement (combi to combi) it will likely be very quick and easy, taking your installer less time and costing less. 

Other elements you might end up paying for include new parts, a cleaning of your pipework or even basic elements like an extended warranty.

When you’re considering the cost of a new boiler, you need to factor in potential extras and installation, although this can vary from installer to installer. This is one of the many reasons you should find an engineer you can trust, which can take days of research if undertaken on your own. Luckily, we can help speed up the process and spare you the headache of fielding professionals and gathering prices alone.

Our handy service can provide you with up to 3 free, non-binding quotes from trusted professionals in your area. All you need to do is fill out a 30-second form and we’ll take the lead. Click the button below to get started.

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New combi boiler cost

New boiler typePrice rangeAverage inc. installation
Combi£500 - £3,000£3,000

Combi boilers are the most popular boiler type in the UK since they only require a single unit to operate. The compact size makes combi boilers best suited to small-to-medium-sized homes with precious space. As aforementioned, combi boiler prices range from £500 to £3,000.

Benefits of a new combi boiler
  • Instant supply of hot water and radiator heating from the local mains network.
  • Reduced heat loss from on-demand hot water.
  • Save space in your home since it operates from one unit.
  • Combi boiler installation is characterised by low noise and compact dimensions which result in an easy installation almost anywhere in the home.
  • Quicker and cheaper to service, which can protect your warranty.
Disadvantages of a combi boiler
  • Cannot always meet high energy demands, or provide hot water multiple outlets at once.

Cost of replacing a conventional boiler with a combi

Replacing a conventional, aka regular, boiler with a combi will typically cost between £1,500 - £4,500.

This type of replacement might be preferable if you wish to improve home efficiency as combi boilers can provide an instant supply of mains pressure water for heating and hot water. 

On the other hand, conventional boiler systems include a cold water tank, usually kept in the loft, that feeds water to a hot water cylinder. These additional units require more space in your home and usually won’t reach the same flow rates as a modern combi boiler. 

However, it’s important to remember that this kind of replacement requires additional parts and labour to restructure the pipework to make way for a new boiler type, as well as the removal of the cold water tank and hot water cylinder. This will likely add a day's work to the installation job, meaning it will take around 2 days altogether. 

Conventional - combi boiler replacementAverage price range
New combi boiler£500 - £3,000
Installation costs inc. additional parts and labour£1,000 - £1,500
Average total replacement cost£3,000

Combi boiler prices fitted

Upgrading your combi boiler can be a costly task, but it’s easier to manage when you know what’s involved. We’ve broken down each type of combi boiler installation in the table below, so you can get a clear idea of the typical costs. 

New boiler typeCost excluding installationCost including installation
Combi to combi£500 - £3,000£1,500 - £4,500
Combi to system£580 - £3,500£1,580 - £5,000
Combi to conventional£600 - £3,500£1,100 - £5,000

Costs for a new boiler replacement can vary widely. This can be due to the boiler model and brand, the installation complexity and any additional parts or work your system might require. It’s important to get expert advice from a qualified engineer to ensure you get quotes specific to your needs. 

It’s also crucial to remember that the cost of installation will often be in addition to the boiler cost. By being informed about the costs upfront, you can make a well-informed decision that aligns with your budget and heating needs.

The complexity of the installation will have considerable bearings on the overall replacement boiler cost. That’s why it’s a good idea to receive multiple quotes from engineers and compare them beforehand to ensure you get the best price. 

Looking for heating engineers independently can be a painstaking, time-consuming, and stressful task. Fortunately, we are on hand to connect you with up to 3 Gas Safe, or OFTEC, approved engineers who will offer quotes based on your home's unique specifications. Start by simply filling in the form and you’ll soon be on your way to upgrading your home! 

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Electric boiler cost

New boiler typePrice rangeAverage inc. installation
Electric£590 - £2,500£2,795

Most boiler types, including combi boilers and system boilers, can be powered by electricity, rather than gas or oil. This makes electric boilers a popular alternative for homes off the gas grid. What’s more, the best electric boilers come with efficiency ratings close to 100%, meaning you can get the most out of your energy.

Electric boilers are generally thought of as an environmentally friendly boiler option, and while they don’t release any carbon emissions or toxic gases while they operate, the supply of electricity itself is mostly generated from burning natural gas. The skyrocketing cost of natural gas also in part accounts for the high running costs of an electric boiler and electric combi boilers.

You can avoid this by signing up with a renewable energy provider, there are a number to choose from including Octopus Energy, Ecotricity, Good Energy and Bulb. You can also take advantage of free, renewable solar energy options such as solar panels and solar thermal which you can combine with your electric heating system. In addition, it is also worth considering support in the form of solar panel grants and schemes available in the UK.

Benefits of a new electric boiler
  • Smaller, easy to install, and can be an attractive option for households off of the gas grid since they do not require connection to the gas line.
  • Efficiency ratings close to 100%.
  • More environmentally friendly since they are not powered by fossil fuels.
Disadvantages of an electric boiler
  • The tendency to be more expensive than gas boilers, since electricity is pricier than gas.
  • Can have problems meeting hot water and heating demand for larger households.

GreenMatch is committed to the UK’s transition to renewable, low-carbon heating. As these new technologies emerge, it is clear that the upfront costs make them unattainable to many UK homes. 

Therefore, switching to a new, energy-efficient boiler is the most cost-smart strategy to reduce your overall carbon footprint until these new technologies become more financially viable.

System boiler cost

New boiler typePrice rangeAverage inc. installation
System£580 - £3,500£3,290

System boilers, alongside a hot water cylinder, keep a constant supply of hot water storage provided by the local mains supply. This makes a system boiler suitable for medium-to-large homes with high energy demands.

Benefits of a new system boiler
  • Optimal water pressure and heating comfort from the local mains network.
  • Saves space in the loft as there’s no need for a cold water tank.
  • Hot water cylinder can easily supply hot water to multiple outlets at once.
Disadvantages of a system boiler
  • The hot water cylinder will occasionally need to reheat which will cause a delay in the hot water supply.

Conventional boiler cost

New boiler typePrice rangeAverage inc. installation
Conventional£600 - £3,500£3,050

Conventional boilers are the more traditional boiler types, typically found in older homes and buildings. Due to our practical knowledge, we know that out of all boiler types, these will require the most space. This is because a conventional boiler requires a hot water cylinder and a cold water tank. Therefore, they are best for medium-to-large homes.

Benefits of a new conventional boiler
  • Suitable for medium-to-large homes as hot water cylinders allow for a constant supply of hot water to multiple outlets.
  • A conventional boiler replacement will reduce installation costs compared to installing a new boiler type.
Disadvantages of a conventional boiler
  • Take up a lot of space in the home 
  • Typically low water pressure compared to mains pressure 

Cost of a boiler replacement: What is included?

The average cost of a boiler replacement will come down to several key factors, including:

  • New boiler type
  • New boiler model and manufacturer
  • Type of replacement
  • Fuel source 

How much will these factors bear on your new boiler costs? The best way to know is by consulting local installers and receiving quotes for their services, including boiler supply and installation.

Local supply and labour ensure you will not overpay for your new boiler. By getting multiple quotes, you can maximise savings by selecting from competitive rates. There are two ways of doing this: by yourself and spending hours researching for installers in your area or by filling out a form in minutes and we'll do the rest. Simply click the button below and choose the easiest way.

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New boiler costs: The best manufacturers to choose

Boiler manufacturers base their average new boiler costs on various factors and there can be some variance between them. These include the additional features that come with the boiler, the reputation of the brand, and the overall quality of the model.

Below you can see the usual price ranges for each manufacturer, per boiler type: 

Manufacturer Combi boiler price rangeSystem boiler price rangeConventional
boiler price range
Worcester Bosch£800 - £2,900£1,000 - £2,500£800 - £2,400
Vaillant£900 - £1,700£900 - £2,170£850 - £1,700
Viessmann £850 - £1,450£1,110 - £1,400£890 - £1,450
Ideal£800 - £1,400£900 - £1,300£860 - £1,700
Alpha£600 - £1,700£860 - £2,500£700 - £800
Baxi£650 - £1,700£850 - £1,100£750 - £1,700

New boiler prices: Various boiler models

The most premium boiler models will come with the highest power outputs and will be most suited to the largest homes with the highest energy demands. These models will also likely come with various additional features that boost their premium quality. 

Since there can be some variance in the average new boiler costs, the table below breaks these costs down into low-to-high price ranges. 

Boiler typeBudget modelsMid-range modelsPremium models
Combi£500 - £900£900 - £2,000£2,000 - £3,000
System£580 - £900£900 - £2,500£2,500 - £3,500
 Conventional £600 - £900£900 - £2,500£2,500 - £3,500

The figures represented in the table are merely guidelines that can help you with your final choice. However, the advice given by a specialist heating engineer is the best way to get an accurate idea of the new boiler costs.

With this in mind, GreenMatch will take away the pain of individually sourcing quotes by directly connecting you with up to 3 licensed heating engineers. This makes comparing quotes quick and easy. Our service is free of charge with no obligation. Click the button below to get your free quotes.

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What grants does the UK Government provide for new boilers?

Saving on the cost of a new boiler with grants

The UK, Welsh and Scottish Governments currently have several grants and schemes open to help homeowners upgrade their heating systems. Below is a list of those currently available:

  • Energy Company Obligation (ECO4): Offers homeowners energy-efficiency improvements, such as insulation, solar panels or a new boiler. Eligibility is based on criteria such as home ownership, benefits, income and proof of need. The ECO4 is available via select energy providers and some local authorities across Great Britain.
    • Boiler Upgrade Scheme (BUS): Homeowners in England and Wales can access funds, through the Boiler Upgrade Scheme, to cover some of the cost towards low-carbon heating systems. The scheme offers £5,000 off the upfront biomass boiler cost or £7,500 off of an air source heat pump (ASHP) or ground source heat pump (GSHP).
      • 0% VAT: The UK Government have imposed a zero per cent VAT rate on certain energy-saving solutions for the home. This includes air source heat pumps, insulation and wood-fuelled boilers.
        • Nest Scheme (Wales): The Nest Scheme was created to support homeowners in Wales to improve their property's energy efficiency. It offers free boiler upgrades, insulation and other improvements to erase fuel poverty and increase the warmth of homes. The scheme will be replaced and updated in April 2024, but will also offer low-carbon technologies.
          • Warmer Homes Scotland: This scheme offers energy-saving improvements (including boiler replacements) to homes requiring heating upgrades in Scotland. Homeowners must meet set criteria, but the scheme will usually cover the whole cost of any work. In some cases, a contribution may be required, but an interest-free loan is offered to help with this. 
            • Home Energy Scotland Grant and Loan: The Scottish Government have made grants and interest-free loans available to support homeowners make efficiency improvements. This could be up to 75% of the cost, up to £9,000 if certain criteria are met. For instance, as of August 2024 funding for energy efficient improvements will no longer be available for homeowners building new homes, so you can only apply if you live in an already existing building.
              • Affordable Warmth Scheme (NI): This scheme aims to help low-income households and those in fuel poverty with energy efficiency measures in Northern Ireland. Grants are available, subject to eligibility and assessment, for home improvements including boiler replacements.

                Please keep in mind that grants and schemes are constantly changing, so it’s important to keep up to date if you wish to take advantage of these opportunities. We recommend checking your local Government websites to stay in the loop.

                New boiler installation cost in the UK

                The average cost for boiler installation is usually between £1,500 - £3,000 but can reach costs of £5,000 based on the additional parts and labour that come with more complex installations. 

                Therefore, a like-for-like swap will cost considerably less than the average cost of a new boiler. That’s because installing a new boiler type means the pipework will have to be adjusted and any additional units, such as the hot water cylinder or cold water tank, will have to be installed/removed. You will also need to factor in labour costs and any day rates your installer might charge, particularly if the installation takes multiple days.

                Additional costs might include:

                Extra featurePrice range
                System power flush£50 - £150
                Magnetic filter£100 - £150
                New boiler flue pipe£50 - £150
                Thermostatic heat controls£70 - £650

                Other factors that might add to the overall boiler installation cost include: 

                • Relocating the boiler to a new position in the home. 
                • Where you live and local installer rates.

                Can a plumber fit a new boiler?

                When it comes to boiler installation you need to look for an engineer with the right qualifications to handle your boiler type. For example, any gas boiler needs to be handled by a Gas Safe registered engineer, and an oil boiler requires an OFTEC technician. 

                These certifications ensure your installer knows exactly how to work with their respective fuels. While a plumber isn’t typically the first point of contact for boiler work, some plumbers may have these accreditations - so it’s worth checking this out when looking for quotes. 

                Independently researching the best, most trustworthy installer rates can be daunting. With GreenMatch’s nationwide network of licensed installers, you can be sure that there’s an installer nearby with quotes relative to your area. 

                Are labour costs included in boiler costs?

                Generally, the cost of installing a new boiler includes the combined costs of purchasing and fitting a boiler (i.e. price of labour and material). The labour cost for installing a new boiler will depend on factors such as the location, the complexity of the installation, and the number of engineers required. As it is well known, labour is one of the most expensive parts of most service work, so prices will increase if any additional work is required.

                Summary: Average cost of boiler replacement

                The average cost of a new boiler replacement will typically fall between £1,500 - £5,000.

                This accounts for the cost of a new boiler, which typically falls between £500 - £3,500 and the average cost for installation, between £1,000 - £1,500.

                At the lower end of this price range, installations will take comparatively less time and the boiler can be easily removed, with little revision needed for pipework and fittings. These usually involve a like-for-like boiler swap.

                However, if you’re looking for a biomass boiler, prices typically start from £4,000 and can reach upwards of £20,000. 

                The most expensive boiler replacement costs are for complex installations where the boiler is replaced by a new type and the existing boiler is not easily removed, with the pipework needing additional adjustment/replacements, or if the boiler is being moved to a new location. 

                Other ways to bring down the average new boiler cost and avoid overpaying come from comparing quotes from various installers.  But how do you even go about finding qualified and available installers?

                Rather than going through the arduous process of doing this research yourself, simply click the button below and we will connect you with our network of Gas Safe and OFTEC-registered installers. They will offer itemised quotes based on your home's specifications. With multiple quotes, you can benefit from the most competitive offer in your area. 

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