Homan O’Brien are a leading Irish Consulting Engineering Practice specialising in the design and management of mechanical, electrical and lift services to all building types.

The company has grown through over 60 years of experience in the building industry by providing a quality professional service to all projects and clients on the domestic and international market. We have an ever expanding and dedicated workforce of highly qualified engineers available to undertake new projects.

Homan O’Brien received the first ever RIAI award for Sustainable Design with the innovative design utilised in Offaly Co. Council HQ in 2003. These designs have been further developed by additional sustainable systems in Tipperary County Council and Cork Civic Offices.

In 2014, we were awarded the ACEI Presidents Award Winners for Excellence in the M&E Design of both the Mater Misericordiae University Hospital and M&E Design of Tullow Oil Technology Centre. Homan O’Brien were also involved in Medtronic New Customer Innovation Centre – Winner of Sustainable Green Project of the Year 2014 and Roscommon Co County New HQ – 2016 CMG Irish Building and Design Award for Best Public Building, 2016 CMG Irish Building and Design Award for Best Sustainable Building to name but a few.

Our services include:

  • Mechanical and Electrical Design
  • Hospital Engineering
  • HVAC
  • Low Energy Building Design
  • Building Dynamic Simulation
  • Building 3D Modelling
  • Building Energy Rating (BER)
  • BREEAM Assessments
  • Vertical Transport Analysis and Design
  • Building Energy Audits
  • Expert Witness
  • Due Diligence


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