Established in 1993, LH plc is one of the UK's leading air conditioning and refrigeration engineering companies. Our Wimbledon-based headquarters are ideally located to serve London, the Home Counties and the South of England, with teams of specialist engineers strategically located around the country to serve clients across the UK.

Our Railway Air Conditioning Division, our Compressor Services & Specialist Engineering Division are unrivalled in their ability to work together with a synergy that provides our customers with a true TurnKey solution. We are among the Top 50 companies listed as a "Best Trading Partner" in the 2009 Plimsoll Portfolio Analysis report on The UK Air Conditioning Equipment and Systems Industry. Our professional service management team keeps track of clients' maintenance schedules, to ensure reliable, trouble-free cooling.

We use the award-winning ClimaCheck performance analyser to monitor the chiller and record pressures, temperatures, currents, voltages and other relevant data. From this, our engineers can diagnose faults and bring your chiller back online and ensure it is working efficiently. Following the introduction of the F-Gas Regulations and other related legislation, removing air conditioning and refrigeration equipment is no longer a simple task. Refrigerant must be handled and disposed of safely as part of the de-commissioning process.

We are experts in refrigeration and air conditioning service and maintenance. Our clients depend on us to ensure their vital cooling systems continue to perform efficiently and reliably. Our teams of fully-qualified air conditioning and refrigeration engineers carry out system servicing, maintenance, inspections, repairs and refurbishment to the highest standards. Particular attention is given to fault diagnosis, to identify the root cause of problems and make sure they are addressed and will not recur.

What's new?

We are so proud of @KlimaTherm_UK! Winners of the Air Conditioning Product of the Year at the RAC @CoolingAwards 2… https://t.co/7OesZ7bTaJ

Posted on Oct 16, 2018  •  Twitter

French-born #engineer, Marc Isambard Brunel, was the man behind the Thames Tunnel – described as the “eighth wonder… https://t.co/zbqMTO127O

Posted on Sep 24, 2018  •  Twitter

The Jam rose to fame during the British post-punk era of the late 1970s, although they were more of a mod revival b… https://t.co/xNfT4Co2z9

Posted on Aug 29, 2018  •  Twitter

Today, London Underground (the Tube) is a massive transport network, with 11 lines spanning 402km of tracks and 270… https://t.co/spVYXmOPBO

Posted on Aug 07, 2018  •  Twitter

We are proud to announce that LH-plc has been nominated for the Greater London Enterprise Awards 2018! SME is reac… https://t.co/LAU88FTOS9

Posted on Jul 30, 2018  •  Twitter

COMPRESSORS SUMMER SALE LH-plc are now offering the cheapest prices on scroll compressors in the UK! Email now for… https://t.co/7YasX00VJC

Posted on Jul 17, 2018  •  Twitter

Ready for the #WorldCup final 2018 Game? Take part to win a 2.5kW Wall Mounted Split System! Guess the half and f… https://t.co/nzmfNwxEqv

Posted on Jul 13, 2018  •  Twitter

World Cup 2018 Final Competition! [France vs Croatia] WIN a 2.5kW Wall Mounted System from Gree UK! Only 5 left!!… https://t.co/PJGPiuoMsR

Posted on Jul 12, 2018  •  Twitter

BIG GAME TODAY! Support England with us on their way to the final! Get the half & full time score right by posting… https://t.co/6TYN8yL8Y2

Posted on Jul 11, 2018  •  Twitter

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