Mechanical

H A O’Neil is Irelands largest and most experienced Mechanical HVAC and Process Piping Contractor, serving the construction industry for over 125 years.

We provide the following services throughout Ireland, UK, Europe and the Middle East.:

  • HVAC Installation
  • Process Pipework Installation
  • Plant and Tool Hook-Ups
  • Process Plant Erection
  • High Pressure Steam
  • Water Treatment
  • Refrigeration
  • Ventilation
  • Medical Gases
  • Specialist Rigging
  • Commissioning of Building Services
  • Maintenance of Building Services
  • Design
  • High Corrosion Installation
  • Air Conditioning
  • Heating
  • Plumbing
  • Gas Installation

 



Latest News

The 99th Jones Engineering Dublin City Liffey Swim Will Bring Ripples of Excitement to the City

There is no event like the Jones Engineering Dublin City Liffey Swim for colour, excitement and spectacle. First run in 1920, the Liffey Swim...

6th Annual Jones Engineering Charity Fundraising Cycle

On Friday 15th June, 82 cyclists took to the roads of South Tipperary and West Waterford in what was the 6th Annual Jones Engineering...

Walk in Interviews for Plumbing & Electrical Apprenticeships in Dublin and Cork

 

Dublin, Ireland Wednesday 27th June 2018 2:00pm – 4:00pm Mont Clare Hotel, 1-4 Merrion Street Lower, Dublin 2

 

 

Cork, Ireland Wednesday 4th July 2018 2:00pm – 4:00pm Clayton Hotel Silver Springs, Tivoli,...