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Heat Pumps Bristol

Harnessing Sustainable Warmth With Ground And Air Source Heat Pumps

Here at Green Flare, our team of designers and engineers have helped hundreds of homes to harness clean, renewable energy via the installation of ground and air source heat pumps. With decades of experience and an unwavering commitment to excellence, we’re here to help customers in Bristol and beyond to invest in a greener future.


At the heart of our work lies an acute attention to detail, with each and every installation prefaced by expert design, meticulously tailored to your property. What’s more, our long standing professional relationships with manufacturers such as Stiebel Eltron and Mitsubishi not only ensure that customers have access to premium renewable technology, but that each and every project is met with the flexibility required to yield exceptional results.


Give us a call to discover the benefits of sustainable domestic heating systems today.

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Types of Heat Pumps

Heat pumps exist as eco-friendly alternatives to gas central heating. That said, it’s important to choose the right technology for your home in order to reap their full benefits. At Green Flare, we specialise in two types of heat pump installations: Air Source Heat Pumps (ASHPs) and Ground Source Heat Pumps (GSHPs).


Air Source Heat Pumps are versatile and suitable for nearly all properties. They work by absorbing heat from the outside air to provide heating and hot water. An ASHP system includes a hot water cylinder and controls located inside your home, with the heat pump unit itself ideally positioned on an outside wall. However, flexibility in siting allows for installation in various outdoor spaces, ensuring compatibility with your property layout.


Ground Source Heat Pumps, on the other hand, tap into the earth's consistent temperatures to heat your home. GSHPs use ground collector pipes, filled with liquid, buried in the ground to extract heat. These systems can be implemented in two ways: vertically, with drilled boreholes for space efficiency, or horizontally, in trenches. This technology offers an unobtrusive, sustainable solution for heating and hot water, leveraging the natural warmth of the ground beneath your property.

Heat Pump Installation Bristol



Our process starts with a free site visit, during which, we will survey your home and offer expert advice on the best system for you.



With a suitable system selected and cost finalised, our engineers will install your ground or air source heat pumps. Typically, this takes a week or so.


Heat Pump Selection & Cost

Following a survey, our engineers will select the most appropriate heat pump for the project. Here, we will also provide a detailed breakdown of cost. 


Commissioning and sign-off

Once installation is complete, our team will talk you through the operation of your system and hand over any key documents. This includes MCS Certification, DNO notification, user manuals and warranty information.

Approved Heat Pump Installers
in Bristol & The South West


“I can safely rely on Green Flare to be honest and work with integrity. Their technological knowledge means they can articulate comprehensively the solutions needed for specific projects. Green Flare are my go-to renewable expert team and I recommend them to my peers.”

LA, Architect

Benefits of Ground & Air Source Heat Pumps

As energy prices soar and our understanding of climate change deepens, the need for alternative energy sources is clearer than ever. Modern solar technology exists as an economic and environmentally sound alternative to traditional systems, and is accompanied by a number of benefits:



Heat pumps are around 400% more efficient than traditional systems.


​Lower Energy Bills

With current high energy prices, your heat pump could pay for itself in as little as 7 years.


Quiet and Non-Intrusive

Most systems operate at around 40-60 decibels – somewhere between a whisper and normal conversation.


Future Proof Solutions

As of 2025, gas boilers will be banned from new homes. Heat pumps exist as low-maintenance, future proof solutions.


Clean Air, Healthy Living

With fewer fossil fuels being burned, heat pumps help to reduce pollution and lower carbon footprints. This contributes to cleaner air and can prevent health conditions such as asthma and bronchitis. 


Government Support

We’re pleased to assist customers in the application and retrieval of BUS vouchers, offering £7,500 for qualifying installations!

Economic Considerations for Heat Pump Installation

Investing in a renewable heating system is a smart move for both your wallet and the planet. 


Initially, heat pumps come with a higher installation cost compared to conventional heating systems. However, the UK's Boiler Upgrade Scheme steps in to lighten this load, offering £7,500 to encourage property owners to replace existing fossil fuel heating with more efficient, low carbon heating systems.


The real benefits of heat pumps shine through in their operational efficiency. They use less energy to generate more heat, leading to lower energy bills and a warmer, happier home. 


By choosing a heat pump, you're not only making an economically sound choice but also contributing to a greener future. It's a thoughtful investment that pays off in more ways than one.


Heat Pumps - Efficiency & Suitability

For households hoping to reduce energy bills and generate clean, renewable energy, heat pumps exist as ideal solutions. Both air and ground Source pumps convert external heat into warm comfort for your home, achieving efficiencies up to 400%. This means for every unit of electricity used to operate the pump, up to four units of heat are generated, making heat pumps an environmentally friendly and economically wise choice.


What’s more, heat pumps are well suited to a broad spectrum of properties, from modern developments to older homes seeking energy upgrades. Air Source Heat Pumps are particularly adaptable, fitting almost any property with minimal space requirements. Ground Source Heat Pumps, while requiring more initial groundwork, are unmatched in efficiency and ideal for homes with available land for ground loops.

Maintenance & Warranties

Alongside their efficiency and environmental benefits, heat pumps are incredibly low maintenance when compared to traditional heating systems. Green Flare customers can expect their systems to last for 15+ years when properly maintained. 


What’s more, we also offer annual service contracts with all systems, so you’ll have access to expert aftercare and first-rate customer service. Each of our Stiebel Eltron heat pumps are also accompanied by a 5 year parts and labour warranty.


Rest assured, your renewable systems will be kept in ship shape and Bristol fashion with Green Flare!

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Take the First Step Towards a Greener Future Today

Give us a call on +44 (0) 1173 353635

Heat Pump FAQs

Can heat pumps be integrated with existing home heating systems in Bristol?

They sure can! Heat pumps can often be integrated with existing home heating systems. Both Air Source and Ground Source Heat Pumps can work alongside or replace traditional boilers, utilising existing radiators and underfloor heating systems.

What environmental impact do heat pumps have compared to fossil-fuel-based heating systems?

Heat pumps significantly reduce environmental impact by using renewable energy sources, resulting in lower carbon emissions compared to fossil-fuel-based systems. By extracting natural heat from the air or ground, they offer a sustainable solution to heating and hot water, helping to combat climate change and reduce air pollution.

Are there any government incentives or schemes available for installing heat pumps in Bristol?

Yep. If you’re thinking of making the switch to a renewable heating system, you may be eligible for the UK government’s Boiler Upgrade Scheme. Designed to support the decarbonisation of homes and small non-domestic buildings in England and Wales, this scheme provides grants of up to £7,500.

How does a heat pump work and how efficient is it?

Heat pumps operate by transferring heat from external sources (air or ground) into your home to provide heating and hot water. They are highly efficient, typically delivering three to four units of heat for every unit of electricity used, making them significantly more efficient than traditional heating systems.

How do seasonal changes in Bristol affect the performance of heat pumps, and what technologies are in place to maintain efficiency?

Seasonal changes can affect heat pump performance, with colder months requiring more energy to extract heat. However, modern heat pumps are designed to operate efficiently even in lower temperatures. Technologies such as variable-speed compressors and advanced refrigerants enable heat pumps to maintain high efficiency and performance throughout the year in Bristol's climate.

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