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How Much Does an Air Source Heat Pump Installation Cost?

Adam Cherry
By: Adam Cherry
Updated: 8th March 2022

Air source heat pump running costs

With the news of gas boilers being banned in the future and air source heat pumps being touted as the best solution, a question a lot of people have is "how much does an air source heat pump cost to install?". This isn't a question that's particularly simple to answer. However, in this article we have provided some common installation scenarios and provided a guideline for how much each installation may cost.

The different types of air source heat pump

There are 2 types of air source heat pump available on the market (air to water & air to air), but since 90% of UK homes have central heating, which uses hot water to heat properties, most homeowners will be considering air to water heat pumps. This is because they are much more easily converted to suit the existing piping and structure within a centrally heated property. Therefore, we have only looked at the installation costs of air to water heat pumps within this article.

If you would like to find out more about the different types of heat pump available, check out our article: What is an air source heat pump?

Detached house heat pump installation costs

Average installation costs for a detached house: £8,000 – £16,000

A big factor in air source heat pump installation cost is the size of your property. Larger homes require larger heat pumps to ensure they are kept at a comfortable temperature all year round, and larger heat pumps generally cost more to buy and install. The larger your property is the more expensive your installation is likely to be.

Semi-detached & terraced house installation costs

Average installation costs for a semi-detached or terraced house: £7,000 – £10,000

Being generally smaller properties, semi-detached and terraced houses will most likely have lower installation costs than detached properties, but this will again be affected by the house size. The price of installation for these properties could also be affected by how simple the installation is, and may increase if there is little flexibility to where the heat pump can be installed.

Installation costs for a flat or apartment

Average installation costs for a flat or apartment: £6,000 – £8,000

As the smallest properties on the market, flats and apartments will require the smallest and cheapest air source heat pumps to meet their heating requirements. However, the installation of an air source heat pump at a flat or apartment is likely to be more complicated than at a house, especially for flats and apartments not on the ground floor.

What affects air source heat pump installation costs?

The overall cost of your installation can be affected by many different factors. We have detailed some of the more common cost factors below.

Simplicity of installation

As a heat pump installation becomes more complicated it also becomes more costly. This is because it can take more time to install and may require more work to be done on your property e.g. new piping may need to be installed.
The simplicity of the installation can also be affected by the type of air source heat pump you are having installed; monobloc air source heat pumps are more straightforward to install than split heat pumps. However, there are several things you should consider when choosing between monobloc and split air source heat pumps. We cover this in more detail here: Split Heat Pumps vs Monobloc Heat Pumps: Which is Best?

How energy efficient the property is

While the size of the air source heat pump you will require will generally be dictated by the size of your home, it is also affected by how energy efficient your home is. This is because heat pumps become less efficient when the property they are installed in is not effective at containing heat. If you don't have good insulation, double glazing or any other energy efficiency measures in your home, it will be letting a lot of heat escape. The more heat that a property allows to escape, the bigger air source heat pump you'll need. This can drive up the price of installation considerably, as you'll need a larger, more expensive heat pump that may take longer to install.

What is already installed

The type of central heating system you have installed can also affect the cost of installing an air source heat pump. This is because most heat pumps require a separate hot water storage tank to allow for hot running water. If your home uses a regular boiler or system boiler however, you just need to replace your existing hot water tank with one that's compatible with the air source heat pump you have installed. However, if you have a combi boiler, you will need to have new piping fitted that allows for the inclusion of a hot water storage tank, and you will need to find a suitable space in which to place it. This makes the installation process more complicated and is likely to increase the cost.

Heat pump grants

With the new Boiler Upgrade Scheme coming into effect from April 2022, you can reduce your air source heat pump installation cost by getting a government grant. Depending on what kind of heat pump you have installed, you can claim up to £6,000 back on the cost of your installation. To find out more about how this works, and for more information on other schemes that are available, we recommend reading our article: Heat Pump Grants and Schemes.

Finding the best price

Regardless of how complicated the installation of an air source heat pump may be, it's still important to get the best price possible. A great way to do this is by getting multiple quotes from different installers and comparing them.
Fortunately, this is something we can help with; simply click the link below and answer some basic questions, and we'll provide you with upto 3 no-obligation quotes from qualified air source heat pump engineers in your area.

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Adam Cherry

About the author

Adam Cherry

Adam is our resident home heating expert. His experience and advice has helped millions of customers improve the efficiency of their homes and save money.

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