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Last updated: 09 September 2021

How Much Does a New Boiler Cost in 2021?

New Boilers - Cost-Efficient Options for Your Home

A boiler is an energy efficient device that can act as a heating option for both your home and your water. A new boiler costs £500 - £2,500, depending on the system.

A new combi boiler costs £500 - £2,000, and a conventional boiler costs £400 - £1,500, which are the most affordable boiler types in the UK.

You can expect to pay £1,300 - £2,500 for a condensing boiler, and £7,000 - £13,000 for a biomass boiler.

When looking for a new boiler one of the most popular options in the UK is the electric combi boiler, and costs £1,500 - £4,500. This boiler is an environmentally-friendly option that does not release any gas into the atmosphere. It's also perfect for homes that do not have the space to store an oil tank as most models can fit into your kitchen or laundry cupboard.

Another popular combi boiler variation is the oil-fired combi boiler, which costs £1,000 - £2,800. The efficiency of an oil boiler is high, though proper maintenance is paramount and oil prices increase steadily.

We can help you find the best new boiler by providing up to four quotes from suppliers in your area. All you need to do is fill in the form above. Our service is free of charge and with no obligations.

New Boiler

New Boiler Prices in the UK

How much a new boiler cost is depends on several factors such as the type of boiler, size, performance, and brand. On average the cost of a new boiler will be between £500 and £2,500.

If you are looking for a new boiler that is higher performance it will often cost more, but will be more energy efficient, have a longer lifespan, and will require less maintenance. Overall, these new boiler options are a great investment and will save you money in the long term. However, boiler prices will often be higher for high performing boilers, but will prove to be good investments in the long term with sizeable cost-savings.

The following table displays the price ranges for some of the most common boilers in the UK. This table does not factor in installation costs.

New Boiler Price Range
Boiler Types Price Bands
Combi Boiler £500 - £2,000
Condensing Boiler £1,300 - £2,500
Conventional Boiler £400 - £1,500
Biomass Boiler £7,000 - £13,000
Electric Boiler £1,500 - £2,500
System Boiler £1,000 - £2,500
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How Much Does a New Boiler Cost to Install?

The average installation cost of a new boiler in the UK is £500-£1,500. However, these costs can change significantly based on if you are buying the same type of boiler as you last one, or you are converting to a different type of boiler. When evaluating how much a new boiler costs, the installation cost is a crucial point to consider. 

The structure of your home and whether you are installing the new boiler in the same location or not will also affect cost. If you are changing the position or type of boiler, you may have additional costs in re-structuring your pipes for the new boiler.

A good rule of thumb for a new boiler cost of installation is the more straightforward the job is, the cheaper it will be. For example, if you want to install a different type of boiler in an older home, it will likely require upgrades and replacements in the system, raising the costs considerably.

A similar installation of the same type of boiler in the same place will often cost less. However, this is not always true as the installation cost is partly dependent on your home, the condition of your existing systems, and fittings. Lastly, a new boilers cost of installation will be affected by the company you choose to do the installation. It is important to find a reputable company, as it can have a considerable payoff in the end.

New Boiler Installation

What Grants Does the UK Government Provide for New Boilers?

The UK government in recent years have established several initiatives to shrink their carbon footprint by reducing energy consumption. Many of these efforts focus on the UK citizens consumption and strive to improve their efficiency through offering incentives to live a more sustainable life. This includes grants for eligible people to purchase more efficient appliances. Whether it is gas boilers, electric boilers, or biomass.  Eligible citizens can considerably reduce their new boilers cost through these initiatives. 

Eco Company Obligation

The UK government has established the Energy Company Obligation (ECO) to reduce carbon emissions and reduce fuel poverty. This program strives to improve the efficiency of low income families boilers and reduce the financial burden of heating costs. ECO minimises this burden through offering free boiler replacements to homeowners who meet specific criteria.

Some of these criteria include currently receiving income-related benefits such as tax credits, income support, ESA, or JSA. Furthermore, your boiler must be at least 5 years old to qualify for the grant. The UK government provides a free survey to see which energy grants you are qualified for assistance for a new boiler cost.

The International Energy Agency, in their latest special report, stresses that no new gas boilers should be sold after 2025 if Net Zero targets need to be achieved by 2050. Heat pumps are expected to be a better, low-carbon alternative to heating homes in the foreseeable future.

What New Boiler Is Right for Me?

When choosing a new boiler, you will need to consider many factors to ensure you are getting the right one for your home. You will need to think about factors such as the size, capacity, water pressure, temperature, fuel type. In addition, you should consider which boiler you currently have and if that will affect your installation costs and long-term savings. All of these factors will affect how much your new boiler costs to purchase and maintain.

Combi Boiler

Combi boilers are among the most popular new boiler options in the UK. Combi boilers are compact and efficient as they take water directly from the main lines. Combi boilers can run on either gas or electric and can often fit into a cupboard.

Combi Boiler Facts
  • Price range: £500-£2,000
  • Fuel type: Gas or electric
  • Water storage: Connected to mains
  • Recommended home size: Smaller homes & apartments
  • Water pressure: Weak if multiple taps are used
New Combi Boiler

Condensing Boiler

Condensing boilers are a highly efficient option when looking for a new boiler, as they use waste heat in flue gases to preheat cold water. Because of the efficient nature of condensing boilers, the UK government has made it compulsory or encouraged with financial incentives in select regions to use this type of boiler due to its efficiency. If you qualify for the financial incentives your new boilers cost can be reduced considerably via grants.

Condensing Boiler Facts
  • Price range: £1,300-£2,500
  • Fuel type: Gas or oil
  • Water storage: Water cylinder
  • Recommended home size: Mid-sized homes
  • Water pressure: Good water pressure for multiple tap use
New Condensing Boiler

Conventional Boilers

A conventional boiler is an excellent option for larger homes. Conventional boilers are composed of two water cylinders, one for heating the water and a second for storing the water for usage. The two-cylinder system is excellent for maintaining water pressure when multiple taps are being run due to the abundant storage space.

Conventional Boiler Facts
  • Price range: £500-£1,500
  • Fuel type: Gas or oil
  • Water storage: Water cylinder
  • Recommended home size: Mid-sized homes
  • Water pressure: Good water pressure for multiple tap use
New Conventional Boiler

Biomass Boilers

Biomass boilers are an environmentally friendly and cost friendly way to heat your home. Biomass boilers work by burning wood to produce energy to heat your water. This is typically done with wood pellets, chips, or logs.

When looking for a new boiler, biomass boilers are a great option because they allow you to have a positive impact on the environment. In addition, your new boiler's cost will be made up with a 30-50% savings on fuel consumption yearly, making the overall biomass boiler cost relatively low. This makes a new biomass boiler a great long-term investment.

Biomass Boiler Facts
  • Price range: £7,000-13,000
  • Fuel type: Gas or oil
  • Water storage: Water cylinder
  • Recommended home size: Mid-sized homes
  • Water pressure: Good water pressure for multiple tap use
New Biomass Boiler

Electric Boilers

Electric boilers are a great option when searching for a new boiler as they are energy efficient and environmentally friendly. Electric boilers can run at nearly 100% efficiency. However, this is effected by the electricity source that is used.

Electric Boiler Facts
  • Price range: £1,500-£2,500
  • Fuel type: Electric
  • Water storage: Mains or water cylinder
  • Recommended home size: Small-mid-sized homes
  • Water pressure: Dependant on the type of boiler
New Electric Boiler

System Boilers

A system boiler heats water straight from the main lines (like a combi boiler), making it an excellent option for smaller homes that have a connection to the main lines. System boilers do store hot water in a storage tank allowing for more than one hot water outlet. This allows the system boiler to provide hot water through multiple taps without reducing water pressure while having a steady source from the mains.

System Boiler Facts
  • Price range: £1,000-£2,500
  • Fuel Type: Gas
  • Water Storage: Mains or water cylinder
  • Recommended home size: Mid-large-sized homes
  • Water pressure: Good water pressure for multiple tape use
New System Boiler

Side-by-Side Comparison of New Boiler Options

Purchasing a new boiler will involve thinking about many different factors before you make the final decision. Below we have made a side-by-side comparison of some of the some of the most popular boiler systems and types to help you make the right decision when evaluating a new boilers costs and benefits.

New Boiler Comparison
Boiler Types Price Range Fuel Type Water Storage House Size Water Pressure
Combi boiler £500 - £2,000 Gas & electric Connected to mains Smaller homes & apartments Weak if multiple taps are used
Condensing boiler £1,300 - £2,500 Gas & oil Water cylinder Mid-sized homes Good water pressure for multiple tap use
Conventional boiler £400 - £1,500 Gas & oil Two cylinder system Large homes Good water pressure for multiple tap use
Biomass boiler £7,000 - £13,000 Wood chips, pellets, & logs Water cylinder & storage for wood Large homes Good water pressure for multiple tap usage
Electric boiler £1,500 - £2,500 Electric Connection to mains & cylinder Small-mid sized homes Dependent on type of electric boiler
System boiler £1,000 - £2,500 Gas Water cylinder & mains Mid-large homes Good water pressure for multiple tap usage

Find the Right New Boiler for Your Home in the UK

When looking for a new boiler, there are many factors you need to examine before purchasing. You will need to evaluate if the style of the boiler is right for your property type and if it suits your water consumption needs. You will also need to consider the installation fees and if the boiler is the same as your previous unit. Lastly, you will need to research the right company for installation of your new boiler.All of these variables will affect how much your new boiler costs.

For these reasons it is not easy to make a decision when purchasing a new boiler, but we can provide you with a supplier quote to make sure you find the best boiler to suit your needs and budget! Fill in the form above to get up to 4 quotes free of charge with no obligations.

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Attila Tamas Vekony
Written by Attila Tamas Vekony, UX Manager

Attila is the UX Manager at GreenMatch. He holds a degree in international business with four years of coordination experience in marketing, user experience, and content creation. Attila likes to write about solar energy, heating technology, environmental protection, and sustainability. His and his team's articles appeared in well-known sites such as The Conversation, Earth911, EcoWatch, and Gizmodo.