• Save 70% On Average On Your Electricity Bills
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Air source heat pumps

Save money, vastly reduce your carbon footprint, and enjoy a more comfortable home, business premises, or public building with this state-of-the-art, eco-friendly technology.

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  • Save 70% on average on your electricity bills
  • Expert advisors with decades of experience
  • Partner with Growatt, the No. 1 global supplier
air-source pump

Air source heat pumps: How it works

With an air source heat pump, no fossil fuels are burned, and the energy that’s produced is 100% renewable. The way they work is surprisingly simple:

  • An outdoor unit draws in heat from the outside, even when it’s cold
  • The heat is then transferred to a refrigerant, which is compressed and heated up
  • The hot refrigerant is then used to heat water or air inside your home
  • The refrigerant then cools down and returns to the outdoor unit, where the cycle begins again

If you’re looking to heat your property in a sustainable way, then speak to our expert team about an air source heat pump installation today.

Fully Accredited Air Source Heat Pump Installers

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  • Save money on your heating bills
  • A warmer, more eco-friendly building
  • Accredited advisors and nationwide coverage

5 reasons to switch to an air source heat pump

There are many advantages, both ecological and financial, to installing an air source heat pump on your property. Here are five of the most persuasive:

Air source heat pumps also work exceptionally well when combined with other energy-saving methods such as insulation and solar energy installations, so enquire now and do your part to protect the environment.

Why take our advice?

Our highly accredited team has been providing the UK with effective heating solutions for over half a century. We have long-standing working relationships with the biggest suppliers in the world, and our Trustpilot reviews show that we always deliver on our 5-star service promise. When it comes to eco-friendly heating solutions, Grant Store is the only name to trust.

Our simple 1, 2, 3 step process

We’ve got decades of experience advising on and installing air source heating pumps for our customers across the UK. As such, we’ve got a 3-step tried-and-tested method of enquiry and installation to make the process as hassle-free and straightforward for you as possible.


You and your property

We’ll ask you some questions about your property to establish things like its location, size, and how much your current heating bills are, so we can give you an accurate quote. Be sure to ask us about an air source heat pump green homes grant, as you could potentially claim up to £5,000 in England and Wales and up to £9,000 in Scotland under the government’s ECO4 scheme.


Find the best package

We’ll then perform an extensive survey of your property to see which air source heat pump would serve it best. Don’t worry if you were unsuccessful in obtaining air source heating grants; we can still help you as a private customer.


Book your installation

All our professional installers are fully regulated and accredited, and your air source heat pump will be installed with the minimum amount of mess and disruption to your daily routine. Congratulations! You’re now generating 100% renewable energy to heat your home!


You must have a few questions. We’ve answered some of the most commonly-asked questions about air source heat pumps here, but please speak to the team if you have any more.

What are the disadvantages of an air source heat pump?

Like all heating options, air pumps do have a few disadvantages, including the high upfront cost, being less efficient in cold weather, and needing regular maintenance. However, their long-term financial and environmental advantages far outweigh the disadvantages, so speak to us if you’re in any doubt about their suitability for your home.

Is an air source heat pump expensive to run?

This is dependent on a number of factors, including the size of your home, the climate you live in, and the efficiency of the heat pump. However, in general, air source heat pumps are not expensive to run. The cost could potentially be driven down even further with the addition of a solar energy installation, which would allow you to become completely self-sufficient away from the National Grid.

Are air source heat pumps a good investment?

Before deciding whether to go ahead with an air pump heat installation, you’ll need to consider your budget, the cost of installation, the efficiency of the heat pump, the climate you live in, the size of your home, and the cost of your current energy bills. We highly recommend speaking to our expert team before you make a final decision. We pride ourselves on our impartiality and will only recommend a solution that will benefit you and your family.

Why is my electric bill so high with an air source heat pump?

Heat pumps are generally inexpensive to run, so if your electricity bills are high, you might want to check that the pump is the right size for your home. It could also be that it hasn’t been properly installed or maintained, the climate is too cold, or the insulation in your home is poor. We’ve specialised in installing insulation for over 50 years, so get in touch if you think we can help your air pump run more effectively.

Are air source heat pumps cheaper to run than a gas boiler?

According to the Energy Saving Trust, the running costs of an air source heat pump are typically around 20%-50% lower than the running costs of a gas boiler. This is because they are more efficient at extracting heat from the air than gas boilers.

Should I replace my gas boiler with a heat pump?

Heat pumps can be a good investment if you’re looking to save money on your energy bills, reduce your carbon footprint, and futureproof your heating source. However, they are a big investment, and other alternatives, such as A-rated gas boilers and hydrogen boilers, are available. Speak to us before making any decision, and we’ll give you an honest answer.

Do I need a boiler if I have a heat pump?

This usually depends on the climate you live in and the efficiency of your heat pump. For example, if you live in a cold climate and your heat pump is not very efficient, you may need to keep your boiler as a backup for hot water.

Are heat pumps cheaper to run than a combi boiler?

In almost all cases, air source heat pumps are cheaper to run and more energy efficient than their combi boiler counterparts. If you need a comparison for your home, give us a call or complete the callback form here