Technology innovation, delivered™

Technology Leaders

The future of heating and cooling is in renewable, affordable energy. ICAX has been developing technology at the leading edge of heat pump efficiency and performance for years. We provide award-winning solutions at every scale, for corporate building owners, Hospital Trusts, Social Housing Providers, Schools, and Factories.

Our team of highly experienced engineers, software coders, UI/UX developers, and production and project managers will develop the solution that is best for you. If the ideal heat pump solution is not available on the market for your project, we will design and manufacture a bespoke outcome that is.


Long Term Relationships

We design, make, install, operate and maintain heat pump systems. Our focus is on ensuring the best long-term system performance for our customers.


Innovation at each step

We are system innovators and believe in finding the right engineering solutions to tackle climate change.


Sustainable Pioneers

We are at the forefront of renewable energy development, using innovative technologies to create sustainable solutions for your business.





What We Do


Renewable Energy

ICAX™ is a clean-tech company helping to meet the demand for on-site renewable energy and sustainable development by using heat pumps to achieve low carbon buildings.


Interseasonal Heat Transfer™

A complementary integration of well tried technologies and patented innovation. IHT™ saves 75%+ carbon emissions vs. gas boilers for heating and 80%+ vs. standard air conditioning for cooling.



We are happy to provide PPM packages for systems that we have designed and installed, to give you long-term peace of mind that the equipment is being looked after, and the performance optimised over time.


Design and Installation

We provide a turnkey package for meeting sustainable energy targets on construction projects.


Ground/Water/Air Source Energy

ICAX offers sustainable and efficient heat pump systems that provide reliable heating and cooling by harnessing the Earth's natural heat for a greener future.


Consultancy Services

ICAX™ is a leading sustainable energy innovation company. ICAX's knowledge, skill and capability in providing sustainable energy analysis and consultancy is sought by leading companies and organisations.


Heat Pump Products

ICAX supplies heat pumps from 10 kW to 1000 kW. We also design and supply specialist bespoke heat pumps where standard products do not fit the project's needs.Controls and monitoring packages can be supplied for all projects.


Thermal Modelling

Our team of experts undertake thermal modelling to ensure heating and cooling needs are met in the most sustainable way.


We discuss and select with you the optimum product set for your project.

We also uniquely supply the following, specialist products:

  • Large-scale water/ground source heat pumps: 300, 600 and 1000 kW (with the ability to output high temperature at 80 degrees for retrofit).
  • Medium-scale air source heat pumps, 60kW, 90 kW.
  • Individual air source heat pumps (with the optional hydraulic unit) : 10kW (specially designed product for Social Housing Providers).
  • Bespoke surface water and marine source heat pump solutions.

Contact us with your project information and query, and we will help you with your selection.

Partners, Collaborators and Clients

ICAX™ is proud to have collaborated with and delivered solutions at every scale for private, public and third-sector organisations.

Department for Business, Energy & Industrial Strategy Merton ARCHITYPE Southwark Council Department for Energy, Security & Net Zero Sutton Hertfordshire Carbon Trust Welcome Trust Robinson College, University of Cambridge Department of Energy & Climate Change Valleys to Coast (V2C) Asset Energy Performance Empower Learning Academy Trust J&E Hall International Welsh Government London Borough of Hounslow
BSRIA Bridgend County Borough Council Engie Cofely CEPRO, Net Zero Energy Communities Vinci Bouygues Shoreham Port Breathe Bioregional CBRE Highways England LSBU ETON College Tesco Eastside Community Trust UTP Engineering Excellence Vital Energi


“We had an ICAX 10kW air source heat pump installed about six months ago. ICAX worked closely with my local heating engineer during its installation and commissioning. The heat pump has kept us warm and supplied ample hot water throughout the winter. It is a good-looking piece of kit and I was pleasantly surprised by how quiet it is. That it was designed and manufactured in the UK is a good example of how decarbonising housing can be good for the economy.”

Residential heat pump customer

“The team at ICAX have been great from start to finish. We (and our wider supply chain) have benefitted enormously from their expertise and continue to receive great service. Personal and persistent - they have gone the extra mile to get the job done.”

Major heat network retrofit customer for ICAX design supply, install, commission and maintenance

“ICAX's work involved the drilling of 18 boreholes on a restricted site, on a tight timescale, tightening further as we continued to shorten the programme. The drill package was achieved on time and with a good level of coordination with other elements of the programme. The installation of the plant was also achieved as programmed. We found the ICAX team to be professional, efficient, prompt and helpful in ensuring successful delivery of this project.”

Major new build customer for ICAX design, supply, install and commission

“The ICAX team worked very effectively with our core sub-contractors to deliver the project under the exacting demands of 'Lean Construction' audits which were carried out. ICAX performed with precision and completed on time to a very demanding programme.”

Major new build main contractor for ICAX design, supply, install and commission

“We are pleased with the installation and the ongoing commissioning arrangement which ICAX are providing to ensure we maximise our renewable energy opportunities.”

Major new build end-user customer for ICAX design supply, install, commission and maintenance