Extracting energy from the ground to heat a property is a sustainable use of the Earth’s natural resources and could reduce your fuel bills and carbon emissions. A few metres below the ground, the temperature is constant throughout the year, typically 11°C. This energy can be harnessed to heat your home and water.

Dragon Drilling installs ground source boreholes for many leading renewable heating installers throughout the UK. We drill boreholes from which a ground source heat pump can extract heat from the ground, then convert and transfer this energy for domestic properties, commercial facilities such as leisure complexes, caravan parks and hotels, and industrial units.

The benefits of ground source heating systems include:

  • On average, 75% free renewable energy
  • Government incentives available
  • Fixed and stable energy costs
  • Lower carbon emissions
  • Constant heat 24 hours a day
  • Fuels both hot water and heating
  • Directly replaces your existing boiler
  • Reversible to provide cooler temperatures in summer
  • Suitable for virtually any property
  • Can add value to property

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All our drilling rigs are modern and custom-built to our own specification for maximum flexibility. To minimise disruption to your property, they are rubber-tracked and highly manoeuvrable to access the tightest of locations. Dragon Drilling typically drills to depths of 100 to 150 metres. Once drilled, we install pressure tested closed heating loops. For total peace of mind, all underground piping used by Dragon Drilling carries a manufacturer’s guarantee of twenty five years. The borehole is then backfilled from bottom to top using thermal transfer grouts to improve the connection with the ground and ensure optimum performance. Unlike shallow slinky coils of pipe, boreholes are installed far deeper into the ground and therefore harness a more constant temperature. Borehole loops can be installed where space is at a premium and without any significant disruption to mature gardens and landscapes.

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Reduced VAT Rate of 0%


From April 1st 2022, a reduced VAT rate of 0% will be applied to all ground source heat pumps installed at residential accommodation. This was communicated in the Spring statement of 23rd March 2022.

The lower rate also applies on any necessary extra work that needs to be done as part of the installation. For the installation of a ground source heat pump system this includes the heat pump, the ground loop, system controls and any other installation ancillary to the supply.


Boiler Upgrade Scheme


The Boiler Upgrade Scheme grant of £6,000 is available on the installation of ground source heat pump systems in England and Wales from April 1st 2022. This scheme will run until 2025.

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How much space do I need?

The actual space required for a ground source heating borehole may be as small as a driveway. If you can get a Land Rover and trailer to the drill location, our drilling rig should be able to gain access.

Can I install ground source heating in an old property?

Yes, this is possible.

How much will I save?

You could save up to 75% of your fuel bill.

What does the borehole look like at the surface?

There is nothing to see at the surface, as the heating loops are buried.

How many boreholes will I need?

This depends on how much heat is naturally lost from your building and the kilowatt capacity of your system. Generally, the bigger the property, the more boreholes you are likely to require. A typical four bedroom property may need two ground source heating boreholes.

If I need multiple boreholes, how far apart should they be?

Ideally, ground source heating boreholes ought to be situated a minimum of six metres apart to maximise the efficiency of the heating pump system.

What type of drilling methods do you use?

We operate cable percussion drilling rigs and rotary drilling rigs using compressed air or drilling fluids

Do I need to gain permission to install a ground source heat borehole?

Not usually. Permission may be required when drilling into an area containing coal. We can assist with all matters relating to permission and licensing.

What type of ground loops are used?

We use loops manufactured from PE100 High Performance Polyethylene Pipes (HPPE). The loop has an electrofusion joint and has been pressure tested by both the manufacturer and Dragon Drilling. Each loop is supplied with an individual pressure test certificate and comes with a twenty five year guarantee.

How deep are the boreholes?

The average depth of a ground source heating borehole drilled by Dragon Drilling is 100 metres. Our standard rig enables us to drill up to 200 metres but we have other specialist equipment if deeper depths are required. Please note, it is essential that boreholes are drilled to the correct depth and this should be checked before you accept a cheaper quote.

Why do you use thermally enhanced grout?

Thermally enhanced grout ensures the maximum efficiency is achieved from your borehole. This type of grout can be up to three times more conductive than alternatives and we highly recommend its use in this application.

How is a ground source heat pump maintained?

Your heat pump will require an annual service much like any standard boiler. The heating loop will not require any maintenance once installed.

Is funding available to help with the installation costs?

The Government announced a 0% VAT charge on heat pumps along with the Boiler Upgrade Scheme from April 1st 2022.

What our Clients Say

Thanks for all your help and assistance with the job. Your guys were prompt, excellent, professional and knowledgable.

South Wales - Borehole Airlift

April 4, 2022

Just a note to say thank you to Dylan and Carl for drilling our borehole - they were both commensurate professionals explaining how they were getting on and keeping the work area tidy and safe. They are both great ambassadors for Dragon Drilling - so a big thank you to them both.

Powys - Water Borehole

March 15, 2022

Just wanted to let you know Simon and Arwyn did a really good job at both sites, Especially at the second one where there was some particularly hard wells to access .They both just got on with the drilling in a safe professional manner with no fuss. Good Job

Landfill Site

February 11, 2022

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