» H. A. O’Neil Mechanical Engineers and Contractors

H. A. O'Neil Ltd is a subsidiary of the Jones Engineering Group.
We carry out the full range of heating, ventilation air conditioning, rigging and process piping services to the commercial, industrial, and process sectors.

H. A. O'Neil Ltd has pre-fabrication workshops located in both Dublin and Cork.

H. A. O'Neil Ltd provides a nationwide maintenance service to contract customers with the facility for 24 hour emergency callout.

In conjunction with our sister companies within the Group we can offer full turn key building services packages including Electrical and Sprinkler Installations.

	Welcome to H. A. O'Neil Ltd H. A. O'Neil Ltd is a subsidiary of the Jones Engineering Group. We carry out the full range of heating, ventilation air conditioning, rigging and process piping services to the commercial, industrial, and process sectors. H. A. O'Neil Ltd has pre-fabrication workshops located in both Dublin and Cork. H. A. O'Neil Ltd provides a nationwide maintenance service to contract customers with the facility for 24 hour emergency callout. In conjunction with our sister companies within the Group we can offer full turn key building services packages including Electrical and Sprinkler Installations.

Welcome to H. A. O'Neil Ltd