Installing a new boiler in your house can be a significant investment, but it is also an essential one. A high-quality boiler can ensure that your home is heated efficiently and cost-effectively. However, the cost of installing a new boiler varies depending on various factors, such as the type of boiler you choose, the size of your home, and the complexity of the installation.

In this article, we will discuss everything you need to know about how much is a new boiler for a house.

Types of Boilers

There are three main types of boilers available in the market: combi boilers, system boilers, and regular boilers. Each type has its own features and benefits that suit different types of homes.

Combi Boilers

Combi boilers are the most popular type of boiler installed in homes across the UK. They provide both hot water and central heating from one compact unit, making them an ideal choice for smaller homes or apartments with limited space. The average cost for a combi boiler installation is between £1,500 to £3,000.

System Boilers

System boilers require a separate hot water storage tank but do not need a cold-water tank like regular boilers. They are suitable for larger properties with multiple bathrooms and higher hot water demands. The average cost for a system boiler installation is between £1,800 to £3,500.

Regular Boilers

Regular boilers (also known as traditional or heat-only boilers) require both a cold-water tank and a hot-water storage cylinder. They are suitable for larger homes with high hot water demand and multiple bathrooms. The average cost for installing a regular boiler is between £2,500 to £4,000.

Factors That Affect The Cost Of Installing A New Boiler

The cost of installing a new boiler depends on several factors:

Type Of Boiler

As discussed earlier, the type of boiler you choose will significantly affect its price range. Combi boilers are generally cheaper than system or regular boilers due to their compact design.

Size Of Your Home

The size of your home will also determine what size boiler you need to install. Larger homes require more powerful boilers than smaller ones; thus, they tend to be more expensive.

Complexity Of Installation

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If your property requires extensive plumbing work or modification before installation can begin – this will increase the overall labor costs involved in fitting your new heating system.


Where you live may also affect how much it costs to install a new boiler in your home. Prices may vary depending on location due to differences in labor rates or even regional availability of certain brands or models.

Additional Costs To Consider

When getting quotes from various installers for installing a new boiler in your house, make sure you consider these additional costs:

Flue Extension

If your flue needs extending when fitting your new heating system – expect an extra charge for this service.

Magnetic Filter

A magnetic filter helps remove sludge buildup from radiators – which can improve efficiency over time but does come at an additional cost.

Thermostatic Radiator Valves

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Thermostatic radiator valves allow independent temperature control in each room where they’re fitted – expect added expense if choosing this option.


The total cost involved when replacing an old heating system with something more modern can vary widely depending on several factors mentioned above. However, investing money into something like upgrading an inefficient heating setup could ultimately save homeowners money over time through lower energy bills – especially if switching from oil-based systems, which typically run at higher costs per unit used!

Overall when considering whether it’s worth investing money into upgrading one’s current heating setup – remember that while there may be some upfront expenses involved initially, there could very well be savings down the line through reduced energy consumption levels over time!