New Boiler Costs: How Much is a New Boiler? (March 2025)

System boilers, alongside a hot water cylinder, keep a constant supply of hot water storage provided by the local mains supply. This makes a system boiler suitable for medium-to-large homes with high energy demands.

GreenMatch is committed to the UK’s transition to renewable, low-carbon heating. As these new technologies emerge, it is clear that the upfront costs make them unattainable to many UK homes.

Therefore, switching to a new, energy-efficient boiler is the most cost-effective strategy for reducing your overall carbon footprint until these new technologies become more financially viable.

Conventional boilers are the more traditional boiler types, typically found in older homes and buildings. Out of all boiler types, these will require the most space and installing one is only advised if you have a conventional boiler as your existing heating system. This is because a conventional boiler requires a hot water cylinder and a cold water feed tank, which are expensive and time-consuming to install.

The cost of a new boiler plus installation in your home can range significantly, typically between £1,600 - £6,000 for a full job. A key factor influencing this price variation is the boiler's fuel type.

While condensing gas boilers are the most prevalent in the UK, often due to the generally lower cost of natural gas, homeowners can also consider other viable options depending on factors such as resource accessibility and budget. 

These options include oil boilers and electric boilers as well, each offering potential benefits depending on individual circumstances and property specifics. Understanding the cost implications of each fuel type is crucial when making your decision.

Gas boilers are fueled by natural gas from the mains grid and are one of the most popular heating solutions in the UK. The widespread availability of gas connections, simpler installation, and historically lower fuel costs compared to other fuel options.

While the units themselves range from £600 - £3,300, installation costs can add a substantial amount to your overall expense. Complex installations requiring work for fuel type changes or outstanding repairs can incur additional charges of up to £2,000. It’s crucial to factor in both the cost of the boiler unit and potential installation fees when budgeting for a new system.

Oil boilers provide heating by burning fuel oil (like kerosene) and are a common choice for off-grid homes. While their functionality is similar to gas boilers, a key difference lies in fuel delivery: oil requires storage in a tank that needs periodic refilling, unlike the continuous supply of gas from the grid. 

The price of an oil boiler unit ranges from around £1,300 - £4,000, varying based on factors such as boiler size, manufacturer, and installation complexity. When factoring in installation costs, the total price for a new oil boiler replacement can range between £2,300 - £6,000.

In terms of new boiler prices, those of electric boilers are comparable to those of standard combi boilers. They are a highly efficient option for homes without a connection to the gas grid, as the best electric boilers on the market have efficiency ratings close to 100%. 

However, homes with solar panels can supply an electric boiler with free, sustainable energy and dramatically reduce their home energy bills. That said, it’s important to note that as a fuel type, electricity is 3 times more expensive than natural gas, which may significantly impact your energy bills in the long run. So, be sure to consider this before getting an electric combi boiler.

Deciding on a boiler upgrade is a great step, but finding the right professional installer is just as important. Fortunately, the days of endlessly surfing the web and scheduling calls are gone with GreenMatch’s free quote service. Simply fill out our online form and receive up to 3 free local boiler installer quotes in no time. Click below and let the bargains come to you! 

While a like-for-like boiler replacement is often the most budget-friendly choice to make, converting to a different boiler type might sometimes better suit your needs. Here's a breakdown of estimated prices for common boiler conversions:

There are multiple factors that impact the total cost of a new boiler. These include: 

With these many factors to consider, choosing a new boiler for your home might become a daunting task. Consulting a qualified installer could secure a boiler option that is tailored to your situation. However, searching for a trustworthy installer can drag on for days (if not weeks) if done alone!

Our handy service can provide you with up to 3 free, non-binding quotes from trusted professionals in your area. Click the button below and out a 30-second form to get started.

Boiler manufacturers base their average new boiler costs on different factors, and there can be some variance between them. These include the additional features that come with the boiler, the brand’s reputation, and the overall quality of the model.

Below, you can see the estimated price ranges for each manufacturer per boiler type:

Since there can be some variance in the average new boiler costs, the table below breaks these down into low to high price ranges. Please note these prices may vary depending on the fuel type and output size you need. 

GreenMatch can eliminate the pain of spending hours individually sourcing quotes on your own, by directly connecting you with up to 3 licensed heating engineers. This makes comparing quotes quick and easy. Our service is free of charge and without obligation. Click below to get started!