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Geothermal Heating Solutions for Homes and Businesses
Earth Test Energy, a trading name of Earthtest Ltd, has been delivering innovative geothermal and ground source heating solutions since 1994. Our team of experienced geologists and mechanical engineers specialises in harnessing sustainable energy from the earth to provide efficient heating systems for domestic and commercial properties. With over 20 years of expertise in geological and environmental fields, we combine technical proficiency with practical application to reduce energy costs and carbon emissions.

Our comprehensive approach includes site-specific assessments, system design, and installation, ensuring optimal thermal efficiency tailored to local geological conditions. We prioritise client satisfaction through transparent communication, adherence to industry standards, and continuous support for renewable energy incentives like the Renewable Heat Incentive (RHI). Our commitment to sustainability and technological advancement positions us as leaders in the UK's transition to greener energy solutions.
Services
Ground source heating Geothermal energy systems Underfloor heating Heat recovery ventilation Renewable energy solutions
Highlights and features
  • We have over 20 years of experience in geological and environmental energy solutions.
  • Our team includes certified geologists and mechanical engineers with UK-specific expertise.
  • We guarantee cost savings of up to 80% on heating bills through geothermal systems.
  • Our systems reduce carbon dioxide emissions while maintaining peak efficiency.
  • We offer tailored solutions validated by Green Deal Assessments and Energy Performance Certificates.
Associations and certifications
  • Renewable Heat Incentive (RHI)
Services
Ground source heating
Ground source heating utilises subterranean heat to provide efficient, sustainable warmth for buildings. By extracting naturally occurring geothermal energy, this system reduces reliance on fossil fuels while maintaining consistent indoor temperatures. Ideal for both residential and commercial properties, it offers long-term cost savings and environmental benefits through reduced carbon emissions.
Underfloor heating
Underfloor heating systems distribute warmth evenly through thermal screed, enhancing comfort and energy efficiency. Operating at lower water temperatures, they maximise geothermal system performance while minimising energy consumption. This solution is particularly effective for modern, well-insulated properties seeking uniform heat distribution without traditional radiators.
Heat recovery ventilation
Heat recovery ventilation manages airflow to maintain indoor air quality while conserving thermal energy. By capturing and reusing heat from exhaust air, it reduces heating demands by up to 50%. This system ensures a healthy, odour-free environment without compromising energy efficiency in residential or commercial spaces.
Renewable energy solutions
Our renewable energy solutions integrate geothermal technology with tailored efficiency measures to meet specific property needs. From initial geological assessments to system installation, we deliver customised approaches that align with environmental goals and financial objectives. These solutions prioritise long-term sustainability and compliance with UK energy regulations.
Green Deal assessments
Green Deal assessments evaluate property suitability for renewable heating systems and insulation improvements. Conducted by certified professionals, these evaluations form the basis for Energy Performance Certificates and RHI eligibility. They ensure installations meet regulatory standards while optimising energy savings for homeowners and businesses.
Questions
What is geothermal heating and how does it work?
Geothermal heating extracts naturally occurring heat from the ground using underground pipes. This energy is transferred to buildings via heat pumps, providing efficient, sustainable warmth year-round.
How much can I save on heating bills with your systems?
Our geothermal systems can reduce heating bills by up to 80%, depending on property size, insulation levels, and existing energy sources.
Are your systems eligible for Renewable Heat Incentive payments?
Yes, our installations qualify for RHI payments, offering tariff support for seven years based on energy output and property-specific assessments.
Do you provide solutions for both homes and businesses?
We design and install systems for residential properties, commercial buildings, and mixed-use developments across the UK.
How do you ensure system efficiency for different geological conditions?
Our geologists conduct detailed site analyses to determine optimal loop configurations and thermal extraction methods tailored to local ground conditions.
What maintenance do geothermal systems require?
Our systems require minimal maintenance, typically annual inspections and routine checks to ensure peak performance and longevity.