Business Details
Trusted HVAC Contractors in Northern Ireland
Principal Cooling has established itself as a leading provider of air conditioning, ventilation, and refrigeration solutions across the UK and Ireland. With headquarters in Dungannon, Northern Ireland, and a satellite office in London, we deliver tailored cooling, heating, and air movement systems for commercial and industrial applications. Our dedicated in-house design teams specialise in complex projects, including food factory refrigeration upgrades, R22-to-ammonia conversions, and healthcare ventilation systems. Clients benefit from direct contract management, ensuring timely and budget-conscious project delivery. We prioritise energy efficiency and environmental compliance, adhering to standards like RAC/80, RAC/70, and DW/144.Certified to ISO 9001, ISO 14001, and OHSAS 18001, we maintain rigorous quality and safety protocols. As F-Gas registered REFCOM members and Constructionline-certified contractors, we combine technical expertise with nationwide service coverage. Our investment in IT systems ensures precision and reliability, while manufacturer partnerships with Daikin and Mitsubishi Electric enable access to advanced technologies. We offer comprehensive maintenance contracts to optimise system performance and longevity, supported by a team of specialists.
Services
Air Conditioning
Ventilation
Refrigeration
Service & Maintenance
Projects
Highlights and features
- We hold ISO 9001, ISO 14001, and OHSAS 18001 certifications for quality and safety
- Our in-house design team creates bespoke solutions for complex industrial projects
- We operate nationwide with offices in Dungannon and London
- F-Gas registered specialists with REFCOM accreditation
- Manufacturer partnerships with Daikin and Mitsubishi Electric ensure cutting-edge technology
Associations and certifications
- ISO 9001
- ISO 14001
- OHSAS 18001
- REFCOM
- Constructionline
Services
Air Conditioning
Principal Cooling installs advanced air conditioning systems including Split, Multisplit, and VRV/VRF configurations. As a Daikin D1 Installer and Mitsubishi Electric partner, we deliver energy-efficient solutions for commercial spaces. Our systems ensure optimal indoor environments while offering manufacturer warranties up to 5 years.
Ventilation
We design and install ventilation systems meeting healthcare, industrial, and commercial requirements. Capabilities include energy-efficient heat recovery units and large-scale air handling systems exceeding 15m/s. Our team provides CAD design, ductwork pressure testing, and full commissioning services for projects of all sizes.
Refrigeration
Specialising in industrial refrigeration, we deliver ammonia-based systems for food processing plants and cold storage facilities. Recent projects include R22-to-ammonia conversions at Dundonald Ice Bowl. We supply industrial chillers and ice machines tailored to food industry requirements, ensuring compliance with safety and efficiency standards.
Service & Maintenance
Our maintenance contracts ensure HVAC systems operate at peak efficiency. Regular servicing extends equipment lifespan, reduces energy consumption, and prevents breakdowns. Clients receive dedicated support from our maintenance manager, with customised plans to suit operational needs across commercial and industrial sectors.
Projects
We manage end-to-end HVAC projects from concept to commissioning. Our in-house design team handles complex challenges including food factory refrigeration and healthcare ventilation. With BESA-standard compliance and ISO-certified processes, we deliver tailored solutions for contractors, consultants, and end-users nationwide.
Questions
What HVAC services does Principal Cooling offer?
We provide air conditioning, ventilation, refrigeration, and maintenance services for commercial and industrial clients across the UK and Ireland.
Are your systems energy efficient?
Yes, all our solutions prioritise energy efficiency, including heat recovery ventilation and high-efficiency refrigeration systems compliant with environmental standards.
Do you handle large-scale industrial projects?
Yes, we specialise in complex installations like ammonia refrigeration systems and large ventilation units with capacities exceeding 15m³/s.
What accreditations do you hold?
We are ISO 9001, ISO 14001, and OHSAS 18001 certified, with REFCOM F-Gas registration and Constructionline membership.
Can you service existing HVAC systems?
Yes, we offer maintenance contracts for all system types, including pressure testing, commissioning, and scheduled preventative maintenance.
Do you operate outside Northern Ireland?
Yes, our London office supports projects across England, Scotland, and Wales, with nationwide service coverage.
