Whether you're considering a new boiler installation for the first time or looking to replace an older unit, knowing the costs involved is crucial to budgeting effectively. As your local heating experts at South London Heating, we are here to provide a transparent, detailed guide that will walk you through the key factors that affect the cost of installing a new boiler.
Boiler installation is a core part of our services at South London Heating, and with over 25 years of experience, our award-winning team ensures that the process is smooth and stress-free. In this blog, we’ll give you an overview of the costs, the various types of boilers, installation timelines, and other factors that could affect your budget.
If you’re in South London and need a trusted, professional heating service, we’re here to help. Call us on 0203 620 5800 or at hello@southlondonheating.co.uk for more information.
South London Heating is your trusted expert for energy-efficient boilers and sustainable heating solutions.
How Much Does A New Boiler Cost?
The average cost of a new boiler ranges between £1,500 - £5,500 and varies depending on the type of boiler, its size, and brand.
New Boiler Installation Costs
Boiler installation refers to setting up a new heating system in a home where no boiler currently exists. Installation includes fitting the boiler, connecting it to the water and gas supply, and ensuring the system runs safely and efficiently.
When we talk about the cost for installing a new boiler, homeowners can expect to pay an average of £2,000 to £5,500 for a complete boiler installation, including the boiler supply and labour. Factors affecting new boiler installation costs are as follows:
- Boiler type:
> Combi boilers: These are the most popular type for UK homes because they demand heating and hot water without needing a separate tank. Combi boiler supply and installation typically costs between £2,000 to £5,500.
> System boilers: Ideal for larger homes with higher hot water demands, system boilers require a hot water cylinder. System boiler supply and Installation costs generally range from £2,000 to £3,000.
> Conventional boilers: These are more suitable for older homes with existing traditional heating systems. Supplying and installing a conventional boiler can cost between £2,000 to £3,500. - Installation complexity: The cost may increase if you install a boiler in an entirely new location or if your home requires additional modifications (such as new pipework a new central heating system with new radiators or an extended flue system).
- Additional components: If you want to enhance your system with smart thermostats, magnetic filters and other smart features. These options can improve the efficiency of your boiler but will add to the overall cost.
Boiler Replacement Costs
Boiler replacement involves removing your old boiler and replacing it with a newer, more energy-efficient model. Boiler replacements are often more straightforward than new installations since much of the necessary infrastructure is already in place, such as pipework and a flue exit.
However, the cost can vary depending on the boiler being replaced and whether you are switching to a different boiler type. The average boiler replacement costs range from £1,500 to £4,500, including the boiler and the installation work.
Types of boiler replacements
- Replacing like-for-like boilers:
> Replacing an old combi boiler with a new one is the simplest option, with costs typically falling between £1,500 and £2,700 for same location and £2,000 to £3,500 for different locations.
> Similarly, if you’re replacing an old or conventional system boiler, the process tends to be straightforward, with average replacement costs between £2,000 and £5,500. - Upgrading boiler types:
>If you're switching from a Worcester Boschsystem or conventional boiler to a combi boiler, the cost can rise because of the extra work involved in removing hot water cylinders and tanks, as well as adapting the pipework. These conversions typically cost around £4,000 or more.
Other key considerations for boiler replacement
- Efficiency and performance: Replacing an old boiler with a modern, energy-efficient model can significantly save energy bills. Boiler experts will offer A-rated boilers that reduce your heating costs and help lower your carbon footprint.
- Boiler size: Upgrading your boiler is a great time to reassess the size of your heating system. If your old boiler was too large or too small for your home’s needs, experts will help you choose the right-sized boiler to match your household’s hot water and heating requirements.
- Upgraded heating controls: Modern controls, such as smart thermostats, can significantly affect your new boiler's efficiency. Consider upgrading your controls to manage your heating system remotely and optimise energy usage.
CONTACT SOUTH LONDON HEATING
Why Choose South London Heating?
At South London Heating, we have over 25 years of experience in installing new boilers. As Gas Safe registered engineers, we provide reliable, high-quality Worcester Bosch boilers and services for installations and replacements, ensuring your home stays warm and efficient. Whether you need a new system or replace an existing one, we offer bespoke solutions tailored to your needs. Additionally, after every installation, we provide a Building Regulations Compliance Certificate, which confirms that your installation adheres to all necessary regulations. We're also Level 2 Worcester-Bosch Accredited Partners, meaning we can provide extended manufacturers guarantees on your new boiler.
We also understand that a boiler installation and replacement can be a significant financial commitment. To help make this investment more affordable, we offer flexible payment plans regulated by the Financial Conduct Authority (FCA). These plans allow you to spread the cost of your new boiler over several months, making it easier to manage.
Whether you want to install a new boiler or replace an old one, our team is here to provide expert guidance and top-tier service. At South London Heating, we offer transparent pricing, expert advice, and high-quality service.
For a free, no-obligation quote, contact us on 0203 620 5800 or hello@southlondonheating.co.uk. You can also message us via WhatsApp at +44 7880 527 500 to speak directly with one of our heating experts.
FAQs
1. How much is a typical boiler installation in the UK?
A typical boiler installation in the UK costs between £1,500 and £4,500. Prices vary based on boiler type, installation complexity, and local labour rates.
2. What is the average boiler service cost in the UK?
The average cost of a boiler service in the UK typically ranges from £80 to £120, depending on the boiler type, location, and engineer's rates.
3. Who can install a boiler in the UK?
Only Gas Safe Registered engineers are legally allowed in the UK to install, repair, or service gas boilers. This ensures that the installation complies with all safety regulations and building standards.
