About us

Who are we

BSE Air Conditioning & Refrigeration was founded in 2005, our core business is air conditioning, refrigeration, ventilation and mechanical services (HVAC). We specialise in the design, supply, installation, service, repair and maintenance of a whole range of air conditioning and refrigeration equipment.

All BSE Air Conditioning & Refrigeration Engineers are highly trained, fully competent, operate within a strict professional code of conduct and are fully F-Gas Compliant. All our Heating engineers are registered RGI gas installers. The NSAI auditors certify BSE protocols on an annual basis. We constantly update our engineers with product development training so that we remain experts in our field.


Our engineers are trained to the highest level to install, service and maintain a wide range of air conditioning and refrigeration equipment. As new products come online we and our partners continue to update our engineers with product development training so that we stay at the top of our game.

Our consultant engineers are some of the most experienced, academically and hands-on engineers in Ireland.
Along with professional qualifications our consultant engineers have worked at all levels of involvement from design, equipment selection, site installations and commissioning of a whole range of HVAC engineering projects.

Our Leadership

Denis O’Neill

Denis O’Neill is a chartered engineer qualified with an Engineering degree from the University of Limerick (NIHE) in 1988 and a master’s degree in Building Services Engineering from Brunel University London.

He has worked in the building services industry for over 30 years specialising in heating, ventilation, air conditioning, refrigeration and is a non-domestic BER assessor. He is an accredited data centre designer. He is a consultant engineer specialising in air conditioning design, HVAC inspection and design & build projects.

He is a full member of Chartered Institute of building services engineers (CIBSE), Engineers Ireland (IEI) and ASHRAE.

Contact Denis at doneill@bse.ie or 01 6016 434

Colin McCready

Colin McCready  is a qualified air conditioning and refrigeration engineer with over 25 years experience within the commercial and industrial sector. 

He holds a City & Guilds qualification in refrigerant handling and thermal imaging. He supervises all our gas installations and is RGI registered. He is a member of the Institute of Refrigeration (IOR).

Contact Colin at colinl@bse.ie

You too can stay on top by talking to our experts today

We are on top of our profession and we can prove it

Mission Statement

Our vision is that BSE Air conditioning and Refrigeration will become the leading provider of heating ventilation and air conditioning (HVAC) systems throughout Ireland able to provide all our clients with a standard of services second to none.

Our mission is not only to meet – but also exceed – client expectations with professionally competent teamwork, continuously updating our engineers’ training and focused understanding of our customers’ needs.

As a progressive organisation, we will achieve this goal through technical excellence to ensure product dependability – and continued long-term customer satisfaction.

Health and Safety - we are committed

BSE Air conditioning and Refrigeration is committed to the provision of a Safety, Health & Welfare and Environment and the continuous improvement of Occupational Safety, Health and Environmental matters for employees, customers and Visitors

BSE Air conditioning and Refrigeration commitment to ensure that as far as reasonably practicable the company will comply with the Safety, Health and Welfare at Work Act 2005 and all other Legislation applicable to BSE Air conditioning and Refrigeration.

When Standards Count

BSE air conditioning & Refrigeration is accredited by the National Standards Authority of Ireland (NSAI) and is audited annually to ensure we maintain our high standards. Our commitment to quality and accountability is a commitment and accountability to you the client.


  • I.S EN ISO 9001:2015 Quality Management System
  • IS EN ISO 14001:2015 Environmental management system
  • OHSAS 18001: 2007 Occupational Health and Safety


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