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How Much Does New Boiler and Radiators Cost UK?

Are you considering upgrading your home’s heating system but unsure about the costs involved? Don’t worry — we’ve got you covered.

In this comprehensive guide, we’ll explore the “new boiler and radiators cost UK” and factors affecting new boiler and radiators installation, helping you make an informed decision that suits your budget and lifestyle.

Key Takeaways

  • New boiler and radiators installation costs can range from £2000 to £7000, depending on various factors.
  • Factors such as property size, location, labour rates and additional components should be considered when selecting a new system.
  • Potential savings and incentives are available to reduce initial costs while hiring a qualified heating engineer is recommended for optimal efficiency & comfort.

New Boiler and Radiators Costs: A Comprehensive Breakdown

A modern central heating system with a boiler and radiators

Understanding the costs involved in upgrading your central heating is necessary. Depending on several factors, the central heating installation costs for a new boiler and radiators can range from £2000 to £7000.

These include the size and type of system, property size and layout, location and labour rates, and any additional components required.

Boiler Costs

Boiler costs vary depending on their type, output rating, and brand. Here are some estimated price ranges:

  • Standard boiler installations: £2,600 to £4,300
  • Combi boilers (including installation): £2,000 to £3,000
  • Electric boilers: £500 to £1,200
  • System boilers: £1,300 to £4,300 (depending on output)
  • Biomass boilers: £7,000 to £14,000

Please note that these prices are estimates and may vary. It’s always best to consult with a professional for an accurate quote.

When determining boiler costs, consider factors such as the output of the gas boiler, the size of the installation team, and regional considerations, which can all impact the final price.

Choosing the right boiler size and type for your home is key in ensuring optimal efficiency and comfort.

Radiator Costs

Radiators are pivotal in maintaining a warm and comfortable home. The cost of radiators varies depending on their style and size, with standard radiators costing between £150 and £750 for installation. Designer-style radiators can be more expensive, costing around £900 for installation.

Homeowners need to select the appropriate radiator style and size for their property to guarantee efficient heating.

The required British Thermal Units (BTUs) for gas central heating can be determined by multiplying the volume (m3) of the room by 153.

To minimize central heating installation costs, consider purchasing your desired radiator type when it’s on sale before the installation work begins.

Factors Affecting New Boiler and Radiators Installation Costs

A person installing a new central heating system in a house

Having covered the basic costs of new boiler and radiators, it’s important to grasp the various factors that can impact the overall installation expense. These factors include:

  • Property size and layout
  • Location
  • Labour rates
  • Additional components

All of these factors play a role in determining the final cost.

Property Size and Layout

The size and layout of your property can significantly impact the cost of installing central heating.

Larger homes with more rooms require more radiators, resulting in increased product costs and longer installation times for your contractors. When budgeting for a new central heating, considering the number of radiators needed and the complexity of the central heating installation is vital.

The property size and layout also impact the boiler size required. For example, a terraced house with six to nine radiators typically needs a 28kW boiler.

Choosing the right boiler size for your property ensures optimal heating efficiency and comfort.

Location and Labour Rates

Another factor that influences the central heating cost is your property’s location. Labour rates can vary across regions in the UK, with higher costs in areas like London and the South East. London’s total cost of labour is generally higher than other parts of the UK.

It typically costs £200 to £500 more for Londoners regarding central heating installation cost. Additionally, the central heating cost can be affected by factors such as the size of your property and the type of system you choose.

Factoring in these regional differences is significant when budgeting for central heating installation. Comparing quotes from local heating engineers can help you find the best value for your money.

Additional Components

Apart from the boiler and radiators, other components may be required for the installation, such as hot water cylinders, heating controls, pumps, and more. The cost of these additional components can vary depending on their type and size, with hot water cylinder and heating controls typically ranging from £100 to £500.

When selecting additional components, consider their compatibility with your chosen boiler and radiators and the overall cost. Ensuring that all components work seamlessly together can help you achieve maximum efficiency and comfort in your home.

Potential Savings and Incentives

A family looking at their energy bills and smiling

While the initial cost of installing a new boiler and radiators can be significant, potential savings and incentives can help offset these expenses. Government grants, such as the Help to Heat schemes, allow households to make their homes warmer and more energy-efficient at a reduced cost.

Energy-efficient systems like condensing boilers, solar thermal systems, and heat pumps can also help to lower energy bills and installation costs.

Additionally, the Boiler Upgrade Scheme provides a grant of £5,000 off the cost of supply and installation, making it more affordable for homeowners to upgrade their heating systems to a combi boiler or a system boiler.

By taking advantage of these savings and incentives, you can enjoy the benefits of a modern heating system without breaking the bank.

Installation Process and Timeframes

A person installing a boiler in a house

Once you’ve decided on the right boiler and radiators for your home and budget, it’s time to consider the installation process and timeframes. Typically, installing a new boiler and radiators takes 2-5 days, with a team of qualified heating engineers handling the job.

The installation process includes the following steps:

  1. Removal of your old heating system
  2. Installation of the new boiler, radiators, and any additional components required
  3. Testing the system to ensure it’s working efficiently and safely
  4. Cleaning up and completing the job

Hiring a professional team of heating engineers is vital as it guarantees a safe and efficient installation, ensuring your new heating system operates optimally and maintains your home’s warmth and comfort.

Choosing the Right Boiler and Radiators for Your Home

A person looking at different types of boilers

Achieving optimal efficiency and comfort requires selecting your home’s boiler and radiators. When choosing a boiler, consider factors such as:

  • Brand
  • Model
  • Type
  • Output rating

Additionally, think about the fuel type — typically, boilers are powered by either gas or electricity.

Consider the style and size that best suit your property and heating needs for radiators. As mentioned, you can calculate the required BTUs for gas central heating by multiplying the room’s volume (m3) by 153. This calculation will help you select the correct radiator size for efficient heating.

Hiring a Qualified Heating Engineer

For a safe and efficient installation, hiring a qualified heating engineer is necessary. To find the best professional for the job, follow these steps:

  1. Compare quotes from local heating engineers.
  2. Check their certifications.
  3. Read customer reviews.
  4. Ensure that the heating engineer is Gas Safe or OFTEC approved, indicating they are qualified to work with gas or oil heating systems, respectively.

A convenient way to find and compare heating engineers is by using an online service that provides up to three free, non-binding quotes from installers in your area. Comparing quotes can help you save up to 40% on the installation cost of your new heating system.

Maintenance and Long-term Costs

A person installing a new oil fired boiler

Though investing in a new boiler and radiator can enhance your home’s comfort and efficiency, considering the long-term costs of maintaining the system is crucial. Regular annual servicing ensures the boiler and radiators operate effectively and safely.

Potential repairs may be required if the boiler or radiators malfunction and energy bills may increase depending on the efficiency of your new heating system. Modern central heating systems are typically highly efficient.

They can often use much less fuel than older systems yet still provide the same heat. Considering installing central heating, it’s worth investing in a modern system to maximize efficiency.


A photo of a newly installed boiler and radiators with the new boiler and radiators cost uk

While a new boiler and radiator can significantly enhance your home’s comfort and efficiency, it’s important to consider all factors, including costs, installation, and maintenance, before deciding.

By carefully evaluating your options and seeking professional advice, you can find the perfect heating system for your home and enjoy the benefits of a modern, efficient, and comfortable living space.


This comprehensive guide covers the costs and factors affecting new boiler and radiator installation, from initial expenses to potential savings and incentives.

We also discussed the importance of choosing the right boiler and radiators for your home, hiring a qualified heating engineer, and considering maintenance and long-term costs.

With this information, you’re now equipped to make an informed decision about upgrading your home’s heating system, ensuring a comfortable and efficient living environment for years.

Frequently Asked Questions

How much does it cost for new boiler and radiators?

Installing a mid-range combi boiler and radiators for a central heating system in a 1-bed flat will cost approximately £3,500, £4,250 for a 3-bed house and £5,500 for a 5-bed house. The cost will range between £4,000 – £6,000 for heat-only and system boiler heating systems.

How much is a new boiler 2023 UK?

For a new boiler in 2023, basic options start from around £500, while mid-range models cost between £900 and £1,200, and high-end options range between £1,000 and £2,000.

How much does it cost to replace a boiler in the UK?

Replacing a boiler in the UK can cost anywhere between £2,100 and £6,000, depending on additional factors such as labour costs and type of boiler.

Do you need new radiators with a new boiler?

It’s not necessary to replace radiators when installing a new boiler; however, they should be checked for any issues and replaced if necessary. Generally, a new boiler should be compatible with an existing heating system.

How long does it take to install a new boiler and radiators?

On average, installing a new boiler and radiators can take 2-5 days when carried out by a team of qualified heating engineers.

Disclosure: This post contains affiliate links, including Amazon Associate links, through which I earn from qualifying purchases at no extra cost to you. I only recommend products I genuinely believe in. Visit my Privacy Policy page for more information.