New Boiler Costs: How Much is a New Boiler? (December 2024)

Are you due for a boiler upgrade? Then you should know how much you can expect your new boiler to cost. Typically, prices in the UK range from £540 to £3,500 for a boiler unit and an additional £1,000 - £1,500 for installation fees. 

There are several factors that can affect your total expenses, and you should know about these to avoid overspending on your heating system. In this guide, we’ll discuss the costs of a new boiler and the factors that influence it.

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

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The average cost of a new boiler stretches anywhere between £540-£3,500, with an additional £1,500-£3,500 installation fee. However, the prices largely depend on multiple factors like boiler type, fuel, model, brand and even household size. Therefore, the cost of a new boiler for a 4 bedroom house is always higher than for a single-room apartment due to different heating requirements.

Combi boilers are the most popular choice in the UK, mainly because of their compact size. They come as a single unit and can easily fit into a kitchen cupboard. The combi boiler prices range from £540 to £3,400.

However, with such a significant price stretch, it's crucial to weigh the initial cost against the long-term savings on energy bills. Buying an oversized combi boiler for a small home will result in higher utility bills as the boiler will produce more energy than the house can use. So the best combi boiler for a 4 bedroom house isn't the right option for a smaller dwelling and will cost more to run in the future.

The price of having a new combi boiler installed can be anywhere between £1,500 and £3,500, depending primarily on the brand and the fuel type you choose. Here’s a breakdown of the estimated costs:

Important to note that not every heating project requires a new boiler installation. In some cases, a system upgrade is needed, which calls for a boiler replacement.

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 estimated costs:

For prices tailored to your specific situation, you’ll want to consult a reliable professional. Fortunately, finding one has never been easier! With our free quotes service, you can get in touch with up to 3 local boiler installers in no time. Just click below to get started now!

The UK, Welsh and Scottish Governments currently have several grants and schemes open to help homeowners upgrade their heating systems. Some of these are the Boiler Upgrade Scheme (BUS), which can alleviate the upfront biomass boiler cost,  and the Energy Company Obligation Scheme (ECO4).

Here’s an overview of all the boiler grants available today: 

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.

The average cost for boiler installation is usually between £1,000 - £1,500 but can be more based on the additional parts and labour that come with more complex installations. This will depend on what parts need to be removed or added to make the new boiler fit.

As a result, a like-for-like swap will cost considerably less than switching to a new boiler type. This is because you won’t need to adjust the pipework or install additional units. 

That said, here are some additional costs that may impact your total expenses: 

It's worth noting that all prices here and above are approximate and are subject to change. Please consult a professional installer in your area to get the most tailored price. 

As for the labour costs, the price largely depends on multiple factors like location, pipework to be done, and the complexity of the job. A straightforward replacement (like a combi to combi) means you’re looking at 1 - 2 day's of work, so you might be charged £500-£1,000.

However, more complex jobs that last multiple days will probably cost you in the region of £2,000–£3,000.

A surefire way to have your boiler installed properly is to look for an engineer with the right qualifications. For example, any gas boiler needs to be handled by a Gas Safe registered engineer, and an oil boiler requires an OFTEC technician.

The average cost of a new boiler replacement will typically fall between £1,500 - £5,000 if you’re getting a combi, system, or conventional boiler. This accounts for the cost of a new boiler, which typically falls between £540 - £3,500 and the average cost for installation, between £1,000 - £1,500.

The most expensive boiler replacement costs are for complex installations where a new type replaces the boiler, the pipework needs adjustment/replacements, or the boiler is moved to a new location.

Ready to invest in a new boiler? Then, you’ll want to look for a reliable installer while securing the best deal for your boiler replacement. Rather than spending days on research and comparisons on your own, why not fill out our 30-second form and let us do the hard work? We will provide you with up to 3 free quotes from trusted installers in your area.