Cost: An In-Depth Guide to New Boiler Prices in the UK

April 15, 2023 | News

Cost of a new boiler replacement in Surrey

In the UK, the prospect of replacing an old or inefficient boiler can be both daunting and confusing, especially when it comes to understanding the true cost of a new boiler. With a myriad of factors contributing to the overall expense, homeowners need a comprehensive guide to help them make the best decision for their needs and budget. This article will delve into the various factors that influence new boiler prices and offer practical advice for choosing the most suitable option.

Types of Boilers and Their Price Range

When it comes to new boilers, the cost varies significantly based on the type of boiler you choose. The three main types of boilers are:

  1. Combi boilers – These combination boilers provide central heating and hot water directly from the boiler itself, eliminating the need for a separate hot water cylinder or storage tank. Prices for combi boilers typically range from £1,500 to £3,500.
  2. System boilers – These boilers require a separate hot water cylinder but have built-in components, making installation quicker and easier. System boiler prices can range from £1,300 to £3,000.
  3. Regular (conventional) boilers – Also known as heat-only boilers, these systems require both a hot water cylinder and a cold water storage tank. They are typically more expensive to install, with prices ranging from £1,500 to £4,000.

The Importance of Boiler Size and Output

The size and output of a boiler are crucial factors that directly impact the cost. Boiler output is measured in kilowatts (kW) and determines the amount of heat and hot water the boiler can provide. The size and output of the boiler you need will depend on the size of your property and the number of radiators and bathrooms it has.

For instance, a small flat with one bathroom may only require a 24-27 kW boiler, while a large house with multiple bathrooms may need a boiler with an output of 35-42 kW. Generally, larger and more powerful boilers are more expensive.

Factors Affecting Installation Costs

The cost of installing a new boiler can also vary widely, with factors such as:

  • The complexity of the installation
  • The need for additional pipework or modifications to existing pipework
  • The requirement for a new flue or gas line
  • The necessity for a power flush to clean the central heating system

Depending on these factors, the installation cost can range from £600 to £1,500.

Brands and Warranty Considerations

When investing in a new boiler, the brand you choose can also affect the price. Well-known and reputable brands, such as Worcester Bosch, Vaillant, and Ideal, may command a higher price due to their quality and reliability. Additionally, the length and terms of the warranty offered by the manufacturer can have an impact on the overall cost.

Energy Efficiency and Long-term Savings

While the initial cost of a new boiler is a significant consideration, it’s also important to factor in the potential long-term savings associated with energy-efficient boilers. Choosing an A-rated, high-efficiency boiler can lead to substantial savings on your energy bills over time, offsetting the initial cost and providing a more cost-effective solution in the long run.

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Call our specialists on 020 8395 8616 or fill in our booking form.

Grants and Schemes for Boiler Replacement

In some cases, UK homeowners may be eligible for government grants or schemes to help cover the cost of a new boiler. The Energy Company Obligation (ECO) scheme, for example, provides financial assistance for low-income households to improve their home’s energy efficiency, which may include a new boiler.


Understanding the various factors that contribute to the cost of a new


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