Group Companies

Gree UK is part of the Calibre Services Group. As one of the UK's top companies in the HVACR engineering sector and an industry giant, Calibre Services Group has won awards for its expertise in the technology and services relating to HVACR controls, maintenance and service.

We are one of a number of UK companies operating under the well-respected Calibre brand. Our sister companies include LH-Plc, Klima-Therm Ltd and Tutela Systems.


LH-Plc has more than 25 years' industry experience and is recognised in its own right as a market-leading UK air conditioning and refrigeration engineering company. Based in Wimbledon, LH-Plc is well-suited to serve London, southern England and the Home Counties.

With teams of specialist engineers who are conveniently based around the UK, the company is able to serve clients across the country. LH-Plc's compressor services and specialist engineering division and its railway air conditioning division are unrivalled in their ability to work together to provide clients with a complete turnkey solution.


Klima-Therm Ltd has a large customer base, thanks to its trusted range of highly efficient chillers, based on HFCs, propane and ammonia. The range includes the award-winning, super-efficient Turbomiser Chiller, with its Turbocor compressor technology.

In addition, Klima-Therm is a supplier of Rhoss and Saiver air handling units, complementary Eurapo fan coil units and chilled beams from Cosy and Airvent. The company also has a specialist department for the maintenance and servicing of air conditioning units for railway applications.

As a Safe Contractor accredited company, Klima-Therm's engineers will work to the highest industry standards.

Tutela Systems 

As a specialist arm of Next Control Systems, Tutela Systems is a trusted supplier of advanced monitoring equipment to controlled environments, such as blood banks. Its operations extend across the UK and to the United States, providing high levels of security, control and energy savings.

Tutela can provide a bespoke solution for clients' compliance and safeguarding requirements, from basic data logging of a single pharmacy refrigerator to large-scale, cloud-based, site-wide monitoring systems with remote alarming. Click here for more details.

Here at Gree UK, we feel the high quality of our work makes us the best in the industry and speaks for itself. Our exceptional levels of customer service, including our attention to detail, ensures our ranking is among the highest in the UK.

To talk to us about the wide range of Gree air conditioning products, call 020 3376 3533, email us or contact us via our convenient online form.


With a complete range of air-conditioning equipment, GREE UK will offer a solution that works for you, your building and your budget.