Our offer

Our technical expertise lies in heat pump technology – ground source (horizontal & borehole systems), water source and air source.

We provide in-house geothermal design & hydraulics for systems capable of efficient heating and hot water in domestic and commercial properties, including new builds, refurbishments and heritage buildings. We also have expertise in bivalent systems which utilise a high percentage of energy from the renewable source alongside a conventional source.

We carry out a complete assessment and provide an indication of the potential fuel savings and RHI income from a heat pump system. We can then assist you in every step of the process of selecting, installing and setting up a heat pump. We also install sophisticated controls to enable efficiency now and in the future.

Watch our video about water source heat pumps here and our video on ground source heat pumps here.

We have worked on numerous heat pump installations, including Roffey Park Institute, Herstmonceux Castle and Sharnbrook Mill, amongst many others which can be found in the Projects section.

What are Heat Pumps?

  • Heat pump technology is both an economical and environmentally friendly way to heat and provide hot water to a building
  • Some types of ground and air heat pumps can also provide an all-year-round heating solution as they can be reversed in the summer to provide air-conditioning
  • Heat pump systems require very little maintenance

There are 3 types:

  • Air source heat pumps absorb heat from the air
  • Ground source heat pumps absorb heat from the ground – watch our video about how water source heat pumps work here
  • Water source heat pumps absorb heat from a water source such as a lake, moat or stream – watch our video about how water source heat pumps work here

Benefits of Heat Pumps

  • Lower carbon emissions
  • No fuel required
  • Provide heating and hot water
  • Require little maintenance

Is it renewable?

  • Heat pump systems can lower carbon emissions as they use renewable, natural heat sources
  • The level of the carbon reduction depends on the fuel being replaced
  • Another power source is required to power heat pumps so they are not carbon neutral

How much does it cost?

  • Costs depend on the type of heat pump being installed, your heating requirements and your available space – we can advise on this
  • Heat pumps are eligible for the Renewable Heat Incentive (RHI) scheme – we can advise on this too

Heat Pump suitability checklist

  • Is the property suitable for conversion?
  • Is there a feature that means a specific heat pump is the natural choice?

Recent projects



Baystar completed the installation of a new, eco-friendly biomass boiler at Nymans in Sussex. The boiler will burn wood chips instead of oil, producing only one tenth of the CO² emissions that are produced by the current oil-fired system. The National Trust has employed sustainable energy experts Baystar to deliver the energy solutions for the

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