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

Company Announcement

 

 

 

 

 

 

 

 

We are delighted to welcome Scott Baker to our team as a Director of Jones Engineering UK.

Scott will be an integral part of our...

Take your first steps to a new career in the new year!

We are delighted to announce our upcoming Walk in interviews taking place on Friday 28th December.

Just some of the benefits you will receive include;...

Bahrain’s Arabian Legends

The Bahrain Games Gaelic Football tournament is the largest Gaelic Games held outside of Ireland and the USA. Teams gather in Bahrain from all...