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

Going Places. . .

 

Want to go places with your career?

 

Drop down to us at the Jobs Expo in Croke Park, Dublin.

Saturday 22nd April 2017 10am –...
Jones Celtic BioEnergy awarded contract by Severn Trent Green Power

Following a competitive tender process, Jones Celtic BioEnergy (JCBE) was awarded a contract to design, build and commission a bio-waste anaerobic digestion (AD) facility...

We are holding walk-in interviews this March

We will be holding walk-in interviews on Monday 6th & 13th March 2017 for Mechanical and Electrical Contracting Professionals.

Dublin, Ireland Monday 6th & 13th March 2017 6:00pm –...