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Air Condition

Denis O'NeillDenis O’Neill is a chartered engineer (CEng), qualified with an Engineering degree from the University of Limerick in 1988. He has worked in the building services industry for over 27 years specialising in heating, ventilation, air conditioning, refrigeration and is a non-domestic BER assessor. He also holds a Master’s degree in Building Services Engineering from Brunel University London. He is an accredited data centre designer. He is a consultant engineer  and a member of the Chartered Institute of Building Services Engineers (MCIBSE) and Engineers Ireland (MIEI) specialising in design and build projects. email:



Having known Denis from BSE Ltd I have found him to be a real professional and a person who is great to deal with.
Kevin Dunbar, Building Services Manager at John Sisk & Son Ltd

I have worked with Denis from BSE Ltd in the past & found Denis is a consummate professional.
Michael Wolf, Managing Director at Wolf Process Automation Ltd

Colin McCreadyColin McCready qualified as an air conditioning and refrigeration engineer over 20 years ago. 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. Email