Cooltherm

What Cooltherm does

Cooltherm (legal name Cool-Therm (UK) Ltd.) is a UK specialist HVACR contractor founded in 1992 and headquartered in Bristol, operating from five regional offices across Bristol, Cardiff, Reading, and Nuneaton with 50+ qualified field engineers. The company supplies ultra-efficient proprietary chillers (Turbomiser, Circlemiser, and Circlemod, developed with Geoclima and built around Danfoss Turbocor magnetic-levitation compressors), a full heat pump range (air, water, and ground source from 6 kW to over 1 MW), VRF/VRV air conditioning, air handling units, fan coils and air curtains, and bespoke custom-built HVAC systems for unusual or mission-critical applications.

The business operates a vertically integrated model spanning equipment supply, full turnkey installation, and a sizeable recurring service and maintenance revenue stream. Cooltherm is the UK distribution partner for Geoclima and holds Daikin D1+ Partner, Mitsubishi Electric Diamond Quality Partner, and Danfoss Turbocor TASP accreditations, enabling authorised warranty service across the largest installed HVAC fleets in the UK. Service contracts (priced at roughly 2-4% of chiller replacement value per year) include planned preventative maintenance, F-Gas compliance, vibration analysis, thermographic surveys, 24/7 emergency callout for critical infrastructure, and performance trending.

Cooltherm serves commercial and industrial customers in healthcare, education (universities), data centres, manufacturing, defence, pharmaceutical, and broader commercial sectors across the United Kingdom. Reported flagship contracts include a £35 million chiller installation for the University of Bath Sports Training Village, Vodafone's Newbury testing facility (£100,000+ savings), and a complex crane-lift chiller replacement at Royal Alexandra Children's Hospital. The company has been welcomed into the Carver Group portfolio and operates ISO 9001, ISO 14001, and ISO 45001 certified management systems.

Name

Cooltherm

Legal name

Cool-Therm (UK) Ltd.

Website

https://cooltherm.co.uk

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

51–100 employees

Short description

Cooltherm is a UK specialist HVACR contractor (founded 1992, Bristol) supplying proprietary chillers, heat pumps, and air conditioning plus turnkey installation and recurring maintenance services to commercial and industrial customers across healthcare, education, data centres, defence, and manufacturing.

Ownership category

akta.pro rank

Product category

Commercial HVAC Equipment and Services

NAICS

Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341), Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415)

SIC

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

akta.pro primary industry

Chillers & Cooling Plant Equipment (IMAHAKAE)

akta.pro secondary industries

Cooling Systems & Thermal Management (CRAC/CRAH, Chillers, Liquid Cooling) (HDABAKAD), Chillers, Boilers & Central Plant Operations (BPABACAG)

Keywords

• Commercial HVAC solutions
• Industrial chillers and heat pumps
• Air conditioning systems
• HVAC maintenance services
• Climate control equipment

Headquarters

HQ city

Bristol

HQ country

United Kingdom

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Equipment Supply: Supply of chillers, heat pumps, air conditioning systems, air handling units, fan coils, and associated HVAC equipment. Includes proprietary products (Turbomiser, Circlemiser, Circlemod) and products from partner manufacturers (Geoclima, Mitsubishi, Daikin, Clint).
2. Installation Services: Full turnkey installation services including design, delivery, commissioning, and project management. Services include removal of existing equipment, crane lifts, pipework, and system integration.
3. Service & Maintenance Contracts: Comprehensive service and maintenance contracts for all makes of chillers and air conditioning systems. Includes planned preventative maintenance (PPM), F-Gas compliance, vibration analysis, thermographic surveys, oil and refrigerant analysis, 24/7 emergency callout for critical infrastructure, and performance reporting.
4. Consultancy Services: F-Gas compliance consultancy, low carbon solutions, TM44 surveys, design service, energy surveys, and bespoke training.
5. Spare Parts: Supply of spare parts for all mainstream chillers and compressors, including components for Turbocor and other brands.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels8 records

Core offering

Cooltherm manufactures and supplies ultra-efficient chillers, heat pumps, air conditioning systems, air handling units, and fan coils, alongside providing turnkey installation, planned preventative maintenance, and consultancy services for commercial and industrial facilities across the UK. The portfolio is anchored by three proprietary chiller lines developed with Geoclima (Turbomiser, Circlemiser, and Circlemod) and supplemented by partner-brand equipment from Daikin, Mitsubishi, and Clint.

Product overview

Cooltherm is a UK-based HVACR (Heating, Ventilation, Air Conditioning, and Refrigeration) solutions provider offering a portfolio of chillers, heat pumps, air conditioning, and air handling units alongside installation, service, and consultancy services. The product portfolio centres on three proprietary chiller ranges — Turbomiser (Turbocor centrifugal/magnetic levitation compressors), Circlemiser (cylindrical microchannel condenser variant delivering up to 15% higher EER), and Circlemod (modular plug-and-play configuration) — supplemented by G-Range screw compressor chillers (Clint brand), V-Range scroll/reciprocating compressor chillers (Energymiser and Greenmiser sub-lines), and bespoke custom-built chillers. Heat pump offerings span air source (Compact Line, Thermica, Energy Power, Multi Power), water source (Aqua Plus, Multi Power, Booster), and ground source types, covering residential through industrial scales (6 kW to over 1 MW). Air conditioning includes VRF/VRV systems, fan coils and air curtains (Biddle/Thermoscreens brands via Carver Group), and air handling units with energy recovery. Services encompass installation (including complex crane lifts and turnkey packages), fully customisable Service & Maintenance Contracts with 24/7 emergency response, and Consultancy (F-Gas compliance, low carbon solutions, TM44, design). The company holds ISO 9001, ISO 14001, and ISO 45001 certifications and operates five regional offices (Bristol, Cardiff, Reading, Nuneaton) with 50+ field engineers.

Differentiator

Problem solved

Functional benefit

Brands

• Turbomiser: Ultra-efficient chiller using Turbocor magnetic levitation compressors, capable of reducing energy costs by up to 50% compared with traditional units. Winner of CIBSE award for low environmental impact technology.
• Circlemiser
• Circlemod

Products and services

• Turbomiser Chiller Range

Quantifiable outcome

• Up to 50% energy cost reduction with Turbomiser compared to traditional screw or reciprocating compressor chillers
• +7 more outcomes

Named customers8 records

Segments8 records

Ideal customer profiles2 records

Technology focussed No

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, flagship and minor.

• GeoclimacoreTechnology or IntegrationGeoclima is Cooltherm's key technology partner for proprietary chiller products. Cooltherm is the UK distribution partner for Geoclima products including Turbomiser, Circlemiser, and Circlemod chillers. Cooltherm has access to manufacturer-level support and bespoke equipment capability for these products.
• DaikinflagshipTechnology or IntegrationCooltherm has been awarded Daikin D1+ Partner status by virtue of top-quality service capacity and product knowledge. Authorised to work on Daikin equipment with full warranty and access support.
• Mitsubishi ElectricflagshipTechnology or IntegrationCooltherm has been awarded Mitsubishi Diamond Quality Partner status, recognising exceptional quality of design ability and workmanship. Authorised to work on Mitsubishi equipment.
• DanfosscoreTechnology or IntegrationCooltherm is a Danfoss Turbocor Approved Service Provider (TASP), listed in the official Danfoss TASP directory for Turbocor service and support across the UK. This enables rapid engineer mobilisation and minimal downtime for Turbocor-equipped chillers.
• Carver GroupcoreChannel Partner/ Reseller/ DistributorCooltherm was welcomed into the Carver Group portfolio of companies, which bolsters service and maintenance capacity. Through this partnership, Cooltherm can support products from Biddle and Thermoscreens brands.
• TerranovaminorImplementation/ SI/ Consulting PartnerTerranova is Cooltherm's specialist lifting contractor used for complex crane lift projects, such as the University of Bath installation where a two-crane solution was required due to restrictive site access.

Scale indicators14 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Daikin UK: UK operation of global HVAC manufacturer Daikin. Cooltherm is a Daikin D1+ Partner, but Daikin also sells direct and through other partners into the same VRF/VRV, chiller, and heat pump segments in the UK.
• Carrier UK: UK arm of global HVAC and refrigeration giant Carrier. Sells commercial chillers, air conditioning, and heat pumps into the same healthcare, education, and data centre accounts as Cooltherm, but at materially larger scale and broader portfolio.
• Trane Technologies: Global HVAC manufacturer (Trane brand) with a significant UK presence supplying chillers, heat pumps, and air handlers to commercial and industrial customers. Overlaps directly with Cooltherm's product and customer mix at a much larger scale.
• Mitsubishi Electric UK: UK arm of Mitsubishi Electric, supplying commercial air conditioning, VRF/VRV, chillers, and heat pumps. Cooltherm holds Diamond Quality Partner status, but Mitsubishi competes both directly and via other partners for the same UK accounts.

Direct peers

• Airedale International (Modine): UK-based chiller and precision cooling manufacturer (now part of Modine), serving data centres, healthcare, and industrial customers across the UK. Directly comparable to Cooltherm in chiller manufacturing, data centre focus, and UK service footprint.
• Klima-Therm UK: UK-based specialist HVAC contractor focused on air conditioning, chillers, and heat pumps for commercial buildings. Directly comparable to Cooltherm in product mix, customer profile, and UK service-led go-to-market.

Emerging players

• Baxi (BDR Thermea Group): UK heating and hot water specialist now owned by BDR Thermea, with a growing commercial heat pump portfolio. Comparable in the heat pump segment Cooltherm is pushing into, though more weighted toward residential and light commercial.
• Swegon UK: UK arm of Swegon, supplying air handling units, fan coils, and indoor climate solutions for commercial buildings. Overlaps with Cooltherm on air handling units, fan coils (Biddle/Thermoscreens), and energy recovery offerings.
• Munters UK: UK presence of Munters, focused on air treatment, cooling, and humidity control for data centres, telecoms, and industrial customers. Comparable in target verticals (especially data centres) and in offering cooling and air-handling solutions.

Regional players

• Clivet UK: Italian chiller, heat pump, and air handling manufacturer with UK distribution. Comparable to Cooltherm as a chiller/heat pump manufacturer, with overlap on R290 and low-GWP product lines, though UK presence is via distribution rather than direct service.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/CoolthermUK

Compliance13 records

Revenue estimate

Valuation estimate

Number of profiles

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 Cooltherm