Jones Engineering Group

Jones Engineering is a multi-disciplined engineering contracting company, offering the complete range of building services installations.

We recently celebrated 125 years of engineering and construction excellence. The original company H.A. O’Neil Ltd was founded in 1890. The Group currently employs 3,500 people and has an excess turnover of over €500m per annum. Our objective is the delivery of quality work through quality people. Each of the operating divisions of Jones Engineering is certified to the International Quality standard, IS EN ISO 9001:2015, and accredited with ‘Safe T Certification’.