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New Boiler Cost

New boiler cost

New Boiler Cost: How Much is a New Boiler in 2024?

The cost of a new boiler is often a topic that UK homeowners would prefer to avoid. However, when faced with the reality of an underperforming boiler, the need for a solid replacement becomes inevitable.


Questions surrounding new boiler costs inevitably arise: How much do boilers typically cost? What is the average cost of a new boiler in the UK? How much does boiler installation cost? Seeking answers to these queries can be daunting, but fret not – we’ve got you covered. In this comprehensive article, we’ll guide you through everything you need to know about the cost of your new boiler installation and offer tips on how to save money in the process.


Let’s start by securing the best boiler deal. While you could independently explore boiler options and search for a suitable heating engineer or company, this process can consume valuable time, often stretching into hours or days. Moreover, there’s no guarantee of finding a certified company with the requisite expertise at the best price.

Thankfully, there’s a stress-free solution that saves you time and hassle. Simply use our free instant online boiler quote tool, it will provide you with the correct boiler type and size for your property along with a fixed price. 

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What Determines the Cost of a New Boiler?

When it comes to the cost of a new boiler, it’s important to recognize that even if two homeowners select similar models, their total expenses can differ significantly. This discrepancy arises from variations in individual budgets and requirements. Several factors should be considered when calculating your boiler fitting cost:

Boiler Type

Different boiler types come with different price tags and installation requirements.

Additional Components

Additional components or accessories may be necessary for the installation, impacting the overall cost.

Installation Requirements

Certain properties may have unique installation needs, such as complex piping which can influence the cost.

Property Size

The size and layout of your property can affect the complexity of the installation process, thereby impacting the overall cost.

Boiler Size

The size and output capacity of the boiler chosen will impact its cost, as well as its suitability for your property’s heating demands.


Hiring a reputable and experienced Gas Safe registered heating engineer for the installation is essential and will incur its own cost.

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How Much is a New Boiler?

The cost of a new boiler can vary depending on factors such as the type of boiler and the complexity of installation. Since gas boilers must be installed by Gas Safe registered heating engineers, it’s essential to consider installation costs as well. Let’s delve into these factors to understand the overall cost of a new boiler in the UK.


Boiler Type Excluding Installation Including Installation
£550 - £3000
£1700 - £4500
£600 - £3500
£1900 - £4500
£650 - £3500
£1900 - £4800
£620 - £3000
£1900 - £5000

Different boiler types come with their own advantages and price ranges. For instance, the cost of a new combi boiler differs from that of a system boiler or conventional boiler replacement. It’s crucial to consider these distinctions when selecting a brand-new boiler.


However, the type of boiler is just one aspect of the equation. The other crucial factor is installation, which underscores the importance of finding a trustworthy installer. Typically, this process can be time-consuming, involving days of research and comparison shopping. Our service offers a much simpler alternative, allowing you to get a fixed quote for the correct boiler in under 20 seconds using our online boiler quote tool. 

Conventional - New Boiler Cost

A conventional boiler comprises a feed and expansion tank, along with a cold water cistern typically located in the loft or attic. Additionally, a hot water storage cylinder is necessary, often stored in an airing cupboard. When determining the cost of a conventional boiler, the following factors come into play:

  • Boiler Brand
  • Boiler Model
  • Length of Warranty
  • Property Size
  • External components may need to be upgraded
  • Installation

For instance, if you own a large 6-bedroom house, you will require a powerful boiler. As a general rule, larger properties necessitate longer installation times and require larger and more powerful boilers. Determining the size of the boiler required is based on factors such as the number of radiators and bathrooms in your home.

Boiler Type Excluding Installation Including Installation
£650 - £3500
£1900 - £4800

Benefits of Conventional Boilers

  • Ideal for larger houses: Conventional boilers can supply generous amounts of hot water simultaneously to multiple bathrooms, making them suitable for larger households.
  • Backup hot water option: By installing an immersion heater in the hot water cylinder, conventional boilers offer a backup hot water source, ensuring uninterrupted supply even in case of boiler malfunction.
  • Simultaneous hot water access: With the capability to provide hot water to multiple users at the same time, conventional boilers offer convenience and efficiency for households with high hot water demand.

Limitations of Conventional Boilers

  • Space requirements: Conventional boilers necessitate adequate space for the header tank, cold water storage tank, boiler, and hot water cylinder, which pose challenges in smaller properties, under these circumstances a combi boiler conversion is recommended.
  • Potential for low-pressure flow: Due to the gravity-fed system, conventional boilers may result in low-pressure flow for showers and hot water, impacting the user experience.
  • Lack of instant hot water: Unlike combi boilers, conventional boilers do not provide instant access to hot water, requiring time for the water to heat up in the storage cylinder.
  • Additional space needed: The installation of a conventional boiler requires additional space for accommodating the boiler, cylinder, and tanks, further limiting space availability in the property.
  • Not suitable for low water pressure areas: Conventional boilers are not recommended for areas with low local water pressure, as they rely on gravity to deliver water, which may exacerbate pressure issues.

Combi - New Boiler Cost

A combi boiler is a type of boiler that integrates both hot water and central heating functionalities within a single system. This feature makes it an ideal choice for properties with 1-2 bathrooms. However, if your property boasts a high flow rate (cold mains flow to the property), you can still opt for a combi boiler even if you have more than 2 bathrooms. Modern combi boilers are available in sizes up to 50kW, capable of handling high demand efficiently.


So, what is the cost of a new combi boiler? Typically, new combi boiler costs range from £550 to £3,000. However, it’s essential to note that this price range excludes the installation cost of the combi boiler. Therefore, it’s important to factor in additional boiler fitting costs when calculating your total budget.

Boiler Type Excluding Installation Including Installation
£550 - £3000
£1700 - £4500

New combi boiler costs vary depending on several factors, including the manufacturer, model, and fuel type. Typically, higher prices are associated with increased performance and extended boiler warranty periods. Additionally, the size of your home and its energy requirements are significant factors, as they influence the output size you select for the boiler.

Boiler Replacement scenarios Average Price
Combi boiler replaced in same location
£1800 - £2900
Combi boiler replaced & relocated
£2500 - £3800
System boiler replaced with a combi boiler & hot water cylinder removed
£3500 - £4200
Conventional boiler replaced with a combi boiler, hot water cylinder & cold water storage tank removed
£3500 - £5000

These figures serve as a general reference point, but for the most competitive all-inclusive new boiler deal encompassing everything from additional components to installation, we strongly advise utilizing our free instant online quote tool. For a relocation or conversion to a combi boiler, utilize our online form or contact us to schedule a free site or virtual survey to get a fixed price. This guarantees complete transparency and enables you to obtain the best price customized to your specific needs.

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Combi Boiler Conversion Cost

If you find yourself needing to reclaim space or seeking to reduce energy expenses, contemplating the replacement of your conventional boiler with a modern combi boiler conversion is a prudent choice.


Embracing a combi boiler presents a myriad of benefits beyond mere space-saving. Not only does it boast high efficiency, but it also demands less maintenance over time, thanks to its streamlined design and integrated system. Additionally, its compact size makes it an attractive option for properties where space is at a premium.


Moreover, the transition to a combi boiler opens up exciting possibilities for property enhancement. By eliminating the need for bulky water tanks associated with conventional boilers, you not only free up valuable space but also pave the way for potential home renovations, such as loft conversions or additional storage solutions.

Combi Boiler Conversion Cost Average Price
System boiler replaced with a combi boiler & hot water cylinder removed
£3500 - £4200
Conventional boiler replaced with a combi boiler, hot water cylinder & cold water storage tank removed
£3500 - £5000

The typical cost for a combi boiler conversion falls within a range, with averages around £3,500 to £5,000. However, it’s important to note that this figure can vary significantly depending on various factors. In some cases, especially for larger properties with complex pipework spread across multiple locations, or where a larger combi boiler is needed due to the property size, costs can surpass £6,000.


Additional expenses may arise if the flue requires extensions or special components like flue bends, particularly if the boiler’s location necessitates a vertical flue through the roof. In such instances, the need for scaffolding could further escalate the total cost, potentially pushing it beyond the £6,000 mark. 


It’s essential to consider these factors when estimating the cost of a combi boiler conversion to ensure accurate budgeting and planning for the project.

System - New Boiler Cost

A system boiler functions by supplying heat to both the central heating and hot water system via an indirect hot water cylinder. Typically, the cost of a new system boiler ranges from £600 to £3,500. However, additional expenses for boiler fitting can vary from £850 to £2000.


Determining the exact cost of a system boiler, including its replacement price, involves considering several factors. The manufacturer, model, and fuel type are significant considerations when selecting a system boiler. Additionally, factors such as the size of your property, its energy requirements, the efficiency rating of the boiler, and the length of the warranty also contribute to the overall cost of the system boiler.

Worcester bosch boilers

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New Boiler Cost: Leading Manufacturers

Boiler prices can vary considerably depending on several factors specific to your home, including the required boiler type, its power output, and the chosen fuel type. It’s important to note that boiler installation costs are not included in the unit price. Additional expenses for installation can range from £700 to £1500, in addition to the boiler price and any necessary supplementary parts or system services.


Here are some price estimates from leading manufacturers in the UK. Please be aware that these prices exclude installation costs and are based solely on gas boilers.

Boiler Brand Combi System Regular
£1180 - £2270
£1190 - £2050
£1015 - £2030
Worcester Bosch
£1010 - £1710
£1340 - £1830
£1035 - £1690
£780 - £1485
£900 - £1650
£715 - £1380
Glow Worm
£665 - £1260
£720 - £1320
£715 - £1380

Gas Boiler - New Boiler Cost

A gas boiler operates by using gas to heat water, which in turn warms the house. Gas-fueled boilers are the most common type in the UK and can be used with radiators or underfloor heating.


So, how much does a new gas boiler cost? On average, a new gas boiler typically costs between £800 and £2500. However, for complex installations, the installation prices of gas boilers could extend up to £3000.

Boiler Brand Combi System Regular
£1180 - £2270
£1190 - £2050
£1015 - £2030
Worcester Bosch
£1010 - £1710
£1340 - £1830
£1035 - £1690
£780 - £1485
£900 - £1650
£715 - £1380
Glow Worm
£665 - £1260
£720 - £1320
£715 - £1380

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New Oil Boiler Cost

An oil boiler operates by burning oil or diesel fuel to provide heating for the house. Similar to gas boilers, oil boilers function by heating water or steam, but they use oil instead of natural gas for fuel. This makes them a popular heating alternative for homes not connected to the gas network.


Oil boiler prices for these units typically start at £1,200 and can exceed £4,000. The price varies based on the unit size, manufacturer, and installation costs. Overall, the total cost of a new oil boiler replacement, including installation, may range between £2,500 and £7,000.


Additionally, operating an oil boiler could cost around £1,500 per year, which is approximately £500 more expensive than using gas for heating your house.

Electric Boiler Cost

An electric boiler utilizes electrical energy to provide heating and domestic hot water. There are several variations of electric boilers available, including the electric combi boiler, electric storage boiler, electric CPSU (Combined Primary Storage Unit) boiler, Dry Core Storage boiler, and solar-compatible boiler.


The average price of an electric boiler can range from £700 to £3,000, depending on the brand and boiler size. Additionally, installation costs are likely to fall between £1,600 and £3,500, varying based on the location of your home and heating requirements.


Electric boilers are a valuable investment for homes without access to gas and for individuals aiming to reduce their carbon footprint. However, it’s important to consider that in the UK, most electricity is generated through the burning of fossil fuels. Additionally, electricity tends to be more expensive than gas and oil.


The running costs of an electric boiler in a typical household could amount to as much as £3,000 annually. Naturally, these costs would be lower for smaller 1 or 2-bedroom homes, but they would significantly impact the expenses for a larger 4-bedroom house.

Air Source Heat Pump Cost

The cost of an air source heat pump can vary depending on several factors such as the size and capacity of the pump, the brand, installation requirements, and any additional components needed for the system.


On average, the initial investment for an air source heat pump installation typically ranges from £8000 to £15,000. However, it’s important to note that this is only an estimate and actual costs may vary based on individual circumstances and specific project requirements. Additionally, ongoing maintenance and operating costs should also be considered when evaluating the overall cost of installing and owning an air source heat pump system.


For a more accurate quote book a free no-obligation site survey via our online form or contact us.

Investing in an air source heat pump offers numerous benefits, making it a smart choice for homeowners looking to upgrade their heating system. Here are some compelling reasons why an air source heat pump is a worthwhile investment:


  • Energy Efficiency: Air source heat pumps are highly energy-efficient, capable of providing sustainable heating and hot water while significantly reducing energy consumption. By harnessing renewable heat energy from the outdoor air, these pumps can deliver efficient heating even in colder climates, helping to lower energy bills and reduce carbon emissions.
  • Cost Savings: Over time, an air source heat pump can lead to substantial cost savings on heating bills compared to traditional heating systems. With lower operational costs and potential government incentives or grants available for renewable heating installations, homeowners can enjoy long-term financial benefits from their investment in an air source heat pump.
  • Low Environmental Impact: By utilizing renewable heat energy from the outdoor air, air source heat pumps contribute to reducing carbon emissions and combating climate change. Compared to conventional heating systems powered by fossil fuels, air source heat pumps offer a more environmentally friendly heating solution, supporting sustainability efforts and reducing reliance on non-renewable energy sources.
  • Long-Term Investment: With advancements in technology and increasing awareness of environmental issues, investing in an air source heat pump can enhance the value of your property while future-proofing your home against rising energy costs. As renewable heating solutions become increasingly popular, installing an air source heat pump can increase the appeal and marketability of your property to potential buyers.


Overall, an air source heat pump offers a range of benefits, including energy efficiency, cost savings, versatility, low environmental impact, and long-term value, making it a smart and sustainable investment for homeowners seeking reliable and efficient heating solutions.


New Boiler Installation Cost

It’s essential to consider the installation costs for a new boiler as well. Let’s take a closer look at these expenses.


How much does a boiler installation cost? It can vary. On average, boiler installations in the UK range from £800 to £2,500. This cost factors in the engineer’s time and the complexity of the installation process.


When installing a new boiler, your project may involve removing old units and installing additional units as needed.

additional costs will include the following:


  • System Power Flush £350 – £1200 (optional)
  • Magnacleanse flush £200 – £400 (optional)
  • Chemical flush should be included as the bare minimum
  • Magnetic Filter £90 – £190
  • Lime scale reducer £15 – £40
  • Thermostat £50 – £200
  • New flue kit £100 – £200
  • Materials £100 – £300


The disparity in costs is primarily attributed to variations in labour rates across different regions and the complexity of the installation process. For instance, installing a new boiler in London typically incurs higher costs compared to outside London. Additionally, a straightforward installation is generally less expensive than a complex one.


To obtain a more accurate estimate for boiler installation costs and secure the best deal, consider utilizing our free instant online quote tool for gas boilers or reaching out to us directly. Spending countless hours independently researching and contacting various installers in your area can be a daunting task to add to your daily routine.

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Summary: average cost of new boiler replacement

The average cost of a new boiler is influenced by various factors including the model, manufacturer, performance, warranty, and size (output rating) of the boiler. Typically, most people will spend between £800 and £1,700 on their new boiler.


Additionally, the average boiler fitting cost is determined by factors such as the labour costs of local installers, the complexity of the job, and the number of person-days required for the installation. On average, boiler installation costs usually range from £800 to £2,000.


So, what are the combined average costs of a new boiler and installation? Generally, this falls between £1,900 and £4,000. However, it’s worth noting that grants may be available to help reduce costs.

FAQs (Frequently Asked Questions)


The average cost of a new boiler in the UK typically ranges from £700 to £2,700. This covers the cost of the boiler alone. However, when including installation costs, prices can increase dependant on the work involved.

The average cost of replacing your boiler with a new one falls between £800 and £2,000. The final expense is contingent upon factors such as the labour rates of your local installer, the complexity of the job, and the number of days required for completion.

Yes, if your existing boiler is old and inefficient, upgrading to a new boiler can lead to lower running costs. However, if your boiler is relatively new, it may be more cost-effective to continue with repairs and maintenance.

The running costs of a boiler primarily depend on factors such as its type, fuel source, price, projected running time, and ongoing maintenance and upgrade expenses. After installation, these costs typically range from £700 to £2,000.

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