What LH - plc does

LH plc is a UK-based specialist engineering company delivering air conditioning, chiller, compressor, and rail HVAC services, established for more than 30 years and operating from Wimbledon, London with a dedicated refurbishment and servicing centre. Its offering spans the full equipment lifecycle — fault diagnosis (using ClimaCheck performance analysers and thermal imaging), commissioning, decommissioning, refurbishment, and repair — alongside supply of new and remanufactured compressors and chillers from major OEMs including Copeland, Danfoss (Turbocor), Daikin, Rhoss, Sanyo, Dorin, and Frascold. Equipment supply is channelled in part through sister company Klima-Therm, while LH delivers the installation, project management, and ongoing service work.

The business operates a direct, sales-led B2B model targeting UK enterprise and public-sector customers across four primary verticals — railway (Transport for London and other UK rail carriers via RISQS registration), healthcare (multiple NHS trusts), data centres, and commercial real estate — with secondary exposure to industrial, education, hospitality, and retail. Pricing is quote-based and project-specific, with a mix of one-time turnkey installation revenue, recurring planned preventive maintenance (PPM) contracts, and one-off compressor remanufacturing service revenue. The company maintains a deep accreditation stack (RISQS, Refcom Elite, CHAS, SafeContractor, Construction Line) and holds authorised partner status with Danfoss Turbocor (TASP) and Daikin (D1 Business Partner), positioning it for regulated, high-criticality cooling work where qualifications and OEM support are gating requirements.

Named enterprise customers include Transport for London, Lloyds of London, Procter & Gamble (Weybridge), Addenbrooke's Hospital, Croydon University Hospital, North Middlesex University Hospital, Grosvenor Estates, and London Executive Offices. Documented project outcomes include roughly 35% energy savings on a Daikin chiller replacement at Addenbrooke's, a chiller coefficient of performance improvement from 1.4 to 1.8 at Procter & Gamble, and avoided capital expenditure of approximately £250,000 at Croydon University Hospital. The group operates under the Calibre Services Group umbrella alongside sister company Klima-Therm, and the headcount is reported in the 11-50 range.

Name

LH - plc

Legal name

LH Plc

Website

https://lh-plc.co.uk

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

11–50 employees

Short description

LH plc is a UK specialist HVAC engineering company delivering chiller, compressor, and rail air conditioning services — including maintenance, refurbishment, and turnkey installation — to enterprise and public-sector customers in rail, healthcare, data centres, and commercial real estate.

Ownership category

akta.pro rank

Product category

Commercial HVAC Services

NAICS

Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341)

SIC

Steam & Air-Conditioning Supply (4961), Refrigeration & Service Industry Machinery (3580), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

HVAC Service, Maintenance & Repair (BPABACAA)

akta.pro secondary industries

Building Thermal Controls & Building Management Systems (HVAC BMS) (IMAHAKAK), HVAC & Cooling System Services (A/C, Radiator) (TLAKAAAG), Demand Response & Load Management Services (BPABAGAE)

Keywords

• HVAC maintenance services
• Chiller repair services
• Compressor remanufacturing
• Rail HVAC services
• Refrigeration engineering

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. HVAC Equipment Supply: Supply of air conditioning units, chillers (including Turbocor and bespoke chillers), new and remanufactured compressors from world-renowned manufacturers (Copeland, Sanyo, Danfoss, Daikin, Rhoss, Dorin, Frascold). One-time product revenue from equipment sales.
2. Service & Maintenance Contracts: Comprehensive services covering chiller maintenance, fault finding, commissioning and decommissioning, refurbishment and repair, Turbocor compressor maintenance, and compressor servicing. Regular planned preventive maintenance (PPM) contracts and annual check-ups are offered. These contracts provide recurring revenue streams.
3. Turnkey Installation Projects: Full turnkey project delivery including design, project management, removal of existing equipment, installation of new pipework and electrics, craneage, commissioning, and handover. Revenue is one-time per project, derived from case studies at Lloyds of London, Addenbrooke's Hospital, 6 Grosvenor Street, and others.
4. Compressor Remanufacturing & Refurbishment: Compressor overhaul, remanufacturing, and refurbishment services. LH remanufactures compressors to like-new performance at lower cost than new units. Stocked remanufactured compressors available on short lead times. One-time service revenue per unit.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

LH plc is a UK-based specialist HVAC engineering firm that services, maintains, refurbishes, and remanufactures chillers and compressors (including Turbocor oil-free centrifugal systems), and supplies new and remanufactured HVAC equipment from manufacturers including Danfoss, Copeland, Daikin, and Rhoss. The company delivers turnkey chiller repair, fault-finding, commissioning, decommissioning, and heat pump maintenance to enterprise clients, alongside a dedicated rail HVAC division supporting UK rail operators including Transport for London.

Product overview

LH plc offers a comprehensive portfolio of air conditioning, chiller, compressor, and rail HVAC services across the UK. The core offering consists of maintenance, fault-finding, commissioning, refurbishment, and repair services for chillers and compressors, supported by a wide range of air conditioning and chiller products. The company supplies products from major manufacturers (Copeland, Danfoss, Sanyo, RHOSS, Daikin, Frascold) including new and remanufactured compressors, Turbocor chillers, and bespoke cooling solutions. A significant differentiator is the specialist railway air conditioning division serving UK rail operators and London Underground, offering onboard HVAC, depot cooling, and component refurbishment. The company operates through sister company Klima-Therm for product supply, with services targeted at diverse sectors including commercial offices, data centres, healthcare, industrial, education, hospitality, and retail.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• Energy savings of approximately 35% achieved with Daikin chiller replacement at Addenbrooke's Hospital
• +4 more outcomes

Named customers9 records

Segments8 records

Ideal customer profiles4 records

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Six partnerships are on record, tiered core.

• CopelandcoreTechnology or IntegrationCopeland is a global supplier of scroll and reciprocating compressors, as well as other HVAC related products and spare parts. Every product is engineered and tested for ultra-reliable, quiet operation. LH supplies Copeland products including ZB, ZF, ZH, ZP, and ZR range compressors.
• SanyocoreTechnology or IntegrationSanyo supplies compressors including the C-SBN, C-SCN, and C-SCP ranges. LH offers Sanyo compressor products through its supply network.
• Danfoss TurbocorcoreTechnology or IntegrationDanfoss is the leading manufacturer of oil-free compressors and pioneer of the Danfoss Turbocor compressor, the world's first oil-free magnetic bearing compressor for the HVAC industry. LH is a Turbocor Approved Service Provider (TASP). LH supplies Danfoss MTZ, DSH, SH, SY, and SZ range compressors.
• DaikincoreTechnology or IntegrationDaikin offers the largest selection of heating and cooling solutions in the commercial sector, from retail and leisure to process cooling and data centres. LH is a Daikin D1 business partner, offering the best price, a free-of-charge extended warranty, and dedicated technical support. LH supplies Daikin chillers and screw compressor products.
• RhosscoreTechnology or IntegrationRhoss offers a remarkably advanced range of top-quality chillers, heat pumps, fan coils, terminal units and air handling units for residential, commercial and industrial applications, backed by state-of-the-art R&D. LH supplies and installs Rhoss products including TCAEBY, TCAESY, and Turbocor TCATBZ chillers.
• Klima-ThermcoreStrategic or Co-development PartnerKlima-Therm is LH plc's sister company, supplying chillers and HVAC products. LH and Klima-Therm frequently collaborate on turnkey projects, with Klima-Therm supplying equipment (e.g., Rhoss chillers) and LH providing project management, installation, and logistics. Projects include 25 Southampton Buildings, 6 Grosvenor Street, and Lloyds of London.

Scale indicators6 records

Recent moves5 records

Expansion highlights5 records

Market position

Competitive moat5 records

Key highlights4 records

Customer concentration

• Xx.com/lhplc

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about LH - plc