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Specialist Ground Source Heat Pumps

Ground Source Heat Pump in Thornbury

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If you are looking for the best Ground Source Heat Pump installers you’ve come to the right place.

We are a specialist Ground Source Heat Pump Installation company who have installed thousands of heat pumps in Thornbury and Gloucestershire.


With installers based in Thornbury and Gloucestershire, we can offer competitive prices and in July 2024 are able to get costs to you very quickly.

An effective ground source heat pump installation can provide major benefits to your home’s heating system in July 2024, as well as the overall energy efficiency of how you heat each space. However, the added complexity means that it is not easy to install them without major help.

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Table of Contents

Why Choose Us?

Our expert staff are able to manage your ground source heat pump installation perfectly, figuring out the ideal space to install ground loops and helping you through the installation one step at a time. If you are interested in a heat pump system, then we can make it much easier for you to get one.

We have worked with many different clients in Thornbury and Gloucestershire, installing ground source heat pumps alongside plenty of other space-heating options and devices. As one of our most effective renewable heat technologies, these heat pumps are an ideal option for sticking to low running costs.

If you want to know more about our ground source heat pump installation services or the heat pumps that we can offer in Thornbury and Gloucestershire, then keep reading below. If you are interested in an installation right away, contact us as soon as possible and let us know what you think you need.

Benefits Of A Ground Source Heat Pump

There are many benefits to having a ground source heat pump some of these include:

At  GSHPI, we can assist you with the best specifications, costs and prices in Thornbury. Make sure you contact us today for a number of great Ground Source Heat Pump Costs in Thornbury.

Ground Source Heat Pump Cost In Thornbury

To install a ground source heat pump for a 240-meters-squared residence in Thornbury, a typical system costs anywhere between £15,000 and £25,000 overall.

The overall cost will depend on varying factors such as:

If you are looking for a more in-depth cost get in touch with us today for a free no-obligation quote!

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How Does A Ground Source Heat Pump Work?

Ground source heat pumps produce heat by ‘sucking’ it out of the ground, using natural warmth to heat up a combination of water and antifreeze. Since the heat in the ground is replenished naturally, it can be collected indefinitely, providing an infinite source of heat.

This heat is gathered through collector loops – rings or spirals of pipes vertically in a trench at least 70 meters below the ground. In their most basic form, these rings are a one-layer system that will pump cold water underground, heat it up through natural means, and then draw it back up to the house.

To get the pipes moving up and down, vertical boreholes are drilled. Some systems rely on these boreholes to create spirals instead of layers, going down between 90 to 160 meters in depth to extract much more heat. This array takes up less horizontal space but is a lot more complex.

Why Install A Ground Source Heat Pump?

Ground source heat pump installation is known for being energy-efficient, but not a lot of people understand why. If you are not aware of the benefits, then here is a quick and simple breakdown.

No Waste or Pollution

All ground source heat pumps work on the same system, heating up water naturally. This means that you are not burning fuel to create the heat – unlike a wood, gas, or oil boiler, you are not producing any pollution or waste products.

A decent ground source heat pump system will only need a small amount of electricity to run any related pumps or other devices, something that you can get through solar panels and batteries – leading to a completely self-contained heating system.


The average heat pump system can often take a long time to wear down, and some are able to keep constantly working for years without issues. As long as you get good ground source heat pumps, you can keep your home heated without any maintenance work whatsoever.

It is still important to check the system now and then, but this can usually be done from the part that is installed in your house – you do not have to dig up the entire garden to check for issues.

Easy Heating

Ground source heat pumps create an excellent heating system that can be used in many different ways. Many people use them as part of underfloor heating systems since the pipes are naturally warm and placed below the house.

While the heating technology is relatively new and can still be improved, the system can still generate heat consistently in any weather and can run forever (at least until any problems occur), making it a ‘fire and forget’ option if you need a reasonable, consistent level of heat output.

Types of Ground Source Heat Pumps

As mentioned before, there are two types of ground source heat pumps: horizontal and vertical. Both have benefits and drawbacks, with the big difference being how much space you want to use up while creating your heating array.

Horizontal Pumps

A horizontal ground loop covers a wide area but without doing too deep into the ground. This is better suited for rural spaces or any home that has a lot of free space and generally costs slightly less overall, but it also means that more ground has to be dug up.

If your home has other garden obstructions (like paths, a pool, a pond, or large amounts of rock underground), then there can be some areas that the ground loop installation will have to bypass or avoid. This makes the planning stage incredibly important.

Making a plan on your own is tricky, but you can always contact us to get expert help on your ground source heat pump installation work.

Vertical Pumps

Vertical pumps are easier to use in smaller spaces. Rather than spreading out the pipes, the system uses two separate boreholes at least 25cm wide, spaced at least five or six meters apart so that the heat does not disperse between them in the wrong way.

Instead of digging out, you have to dig down, meaning that each ground loop can become increasingly expensive to make thanks to the specialist machinery involved. They cost more to install but can also be the only suitable option if you live in very dense suburban (or sometimes even urban) areas.

This is another situation where planning ahead is important, so do not hesitate to ask for our expertise if you are not sure where to begin.

Is My Property Suitable For A Ground Source Heat Pump?

There are multiple things that impact how effective ground source heat pumps can be, and understanding them is important for keeping your heating system working efficiently. A suitable property is one of them – but what does that actually mean?


A larger property needs a larger ground source heat pump system installation. Even with this renewable heating source, having the right scale of the heat distribution system for your home allows it to stay heated properly. A larger building needs a larger ground array to collect heat, for example.

Maximum efficiency relies on the ground array being perfectly suited to the size of the house that you are using, including all water heating options. Too little heat will fail to provide all of the warm water you need, and too much heat can be a waste of money and resources.


Space is also one of the biggest issues when trying to source heat from the ground. Ground source heat pumps work by drawing heat from underground, so the more access you have to the ground itself, the easier this becomes.

Homes with more open property can easily have a flat ground array installed that only requires a single horizontal layer – something that is significantly cheaper. However, if you have little to no actual space beyond your home’s walls, then a vertical system is the only real choice, and that can cost a lot more.

Temperature Difference

Ground source heat pumps operate much more efficiently if there is a lower difference in temperature. Minimising the difference between the target room and the temperature of the ground can be tricky, but proper insulation can often be the most important factor here.

The easier it becomes to maintain and match the same level of heat, the faster your ground source heat pump installation can make sure that the heating remains consistent. A ground loop placed in a cold area of the ground might not even be enough for basic underfloor heating.


At much as a quarter of your total heat can be lost through the roof and another quarter through your floors. In many homes, up to 35% of all heat dissipates through solid walls thanks to poor insulation and windows that are not air-tight.

The better insulated your home is, the easier it becomes to maintain a good level of heat once the ground source heat pump starts working. Even weaker heat pumps can become effective if you stop the heat from escaping easily, trapping it inside the house as the warmth builds up.

Remember that this is not always as simple as just ‘adding insulation’. There may be other factors at play, which is why we recommend getting our experts to take a look at your home’s layout. Fixing a mistake after the system has been installed can be costly and very tricky to pull off.

Heating Type

Similar to the temperature differences, something like an underfloor heating system can be quite a passive source of heat, as can domestic hot water use. The simpler your heating system and the less hot water it needs to be effective, the more powerful your ground source heat pump becomes.

Remember that heat pumps work best when they can easily reach the target temperature. Lowering the target temperature by using heating systems with better heat distribution or a greater coverage can actually help the system work more effectively.

If this does not make sense at first, do not be afraid to get in touch and ask us for a more defined plan. Your floor space can have a lot of different quirks, and it is not easy to pick out problem areas without at least some experience.

Is a ground source heat pump right for your home?

Finally, how would a heat pump actually impact your home? Do you need underfloor heating, or is renewable energy good for cutting down heating bills? How much money would it save you?

Make sure that you think long and hard about what you are buying before you commit to any design. You can also talk with us to get a better idea of what might work best for your home or requirements. Even certain design tweaks, like particular fan coils, can completely change the results you get.

At Ground Source Heat Pump Installation, we can assist you with the best specifications, costs and prices. Make sure you contact us today for a number of great heat pumps.

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Should You Replace A Gas Boiler With A Ground Source Heat Pump?

A ground source heat pump can be a very effective tool for heating a lot of homes. While many people use them as extra heating measures alongside natural gas or oil boilers there is also the chance that your home could benefit from using one as the main source of heat.

All heat pump types (ground source heat pumps, air-source heat pumps, and water source heat pumps) are able to extract more heat than a typical system ‘costs’ to run. However, most of them can’t easily be used to heat up hot water, which creates an issue with getting hold of boiling water fast.

Can I use them together?

For a lot of homes, ground source heat pumps (or air source heat pumps) are used as a primary heating measure, with a boiler still installed for heating water. However, replacing your gas boiler with an electric option can be a lot more energy-efficient and allow for even lower pollution production.

Remember that you may have to modify the size of your radiators and other water-based heating equipment when working with this kind of system since it will be very different to a conventional boiler.

Load-shifting ground source heat pumps

Ground source heat pump systems have become a very appealing option for load-shifting strategies. By tailoring your heat distribution infrastructure to peak hours, you can make sure that you switch to using the ground source heat pump exclusively whenever the prices would be highest.

Thanks to technical advances in things like thermal storage batteries, you can also store energy that you are not using right away, making it even easier to switch to renewable energy and heat when needed.

Remember that groups like the Energy Saving Trust can keep track of how carbon emissions are produced and that the UK government may be offering renewable heat incentive options to push people into switching. A load-shifting system makes this switch even more convenient.

Initial Considerations When Installing A Ground Source Heat Pump

When you install a heat pump, you need to be sure that you understand the basic considerations involved in making it all work. There are certain details that you might overlook which could really make a difference during the installation itself.

Additional costs when retrofitting a ground source heat pump

Pipelines and supplies need to be planned out before the installation starts, especially if the exact state of the ground is not known yet. The more that you know about how the installation will go, the easier it becomes to make sure that it can be carried out properly.

If you already have pipes and/or a pump installed, we might have to retrofit certain parts to suit your new heat pump system. Underfloor heating can sometimes be connected up to a new heat pump, but if the pipes are too different, then this could become tricky.


Once sealed, the ground loop system only requires minimal maintenance. A heat pump will last around 30 years, but the coils and heat exchanger will last about 70 years or more.

It still helps to perform annual service on the heat pump box and to learn how you can check the current state of the heat pump yourself. If something goes wrong, you want to know what is happening before you call a professional, especially if the heat pump is suffering a rare but severe malfunction.

Heating Location

Knowing where you want your heat to be placed can be important, too. For example, a ‘plant room’ that contains a lot of plant life might need to be carefully managed, while a hallway could have a more variable temperature.

Your heating system will hit some lower temperatures with heat pumps (even Kensa heat pumps and similar popular models), so you want to keep each “plant room” or otherwise temperature-sensitive space defined. Flooring your favourite plant room with poor heating can easily lead to dead plants, for example.

Ground source heat pump funding

Who is paying for the heat pump? A decent heat pump can be expensive, but thanks to the government Renewable Heat incentive scheme (and Microgeneration Certification Scheme), this kind of electric heating has become a lot cheaper overall.

Be sure to go through the entire sign-up and certification process whenever you have time. Even self-builders who created their own dream house will want to apply since the scheme can massively cut down the costs of what you are buying if you get it installed by a professional – such as our excellent staff.


What are the benefits of a heat pump in Thornbury?

There are three core benefits of a heat pump: the lack of a mains gas connection, the reduced running costs, and the high durability of the system. All of this makes a long-lasting, cheap-to-run heating option that does not consume fuel or put out any polluting chemicals.

What are the disadvantages of ground source heat pumps?

These ground source heat pumps rely on ground temperatures, so low temperatures can make the heating less effective if it has been badly installed. They can also cost a lot to initially install if you do not get government grants.

Do they work for underfloor heating?

Underfloor heating is one of the most common ways to use a heat pump, and many homes do it intentionally. This makes good use of the lower overall temperature and simpler design.

Can I install a ground source heat pump myself?

It is not recommended to try and install a heat pump yourself. The systems are complex, dangerous, and hard to work with. If you want professional installation help, contact us, and we can handle the process for you.


If you are interested in working with us, then it is important to define when and where we can help install your system. Whichever expert installer we send will want to know exactly how you need the heat pump to be designed, right down to the direction of the coils.

Make sure that you plan ahead and know what kind of work you will need – and that you can describe it to another person. While we can easily form our own plan, we aim to make sure that we are producing what the client wants every time.

Find More Info

Make sure you contact us today for a number of great Ground Source Heat Pump Installation Services in South West.

Here are some towns we cover near Thornbury.

Frampton Cotterell, Yate, Kingswood, Filton, Southmead
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What Others Say About Our Services

We absolutely love the service provided. Their approach is really friendly but professional. We went out to five different companies and found Ground Source Heat Pump Installation to be value for money and their service was by far the best. Thank you for your really awesome work, we will definitely be returning!

Stanley Holland

We have used Ground Source Heat Pump Installation for many years as they are certainly the best in the UK. The attention to detail and professional setup is what makes this company our go-to company for all our work. I highly recommend the team for the immense work - we highly recommend them!

Frederick Howard

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