About us

PJ Duffy and Sons Ltd.

is a privately owned mechanical services contracting company founded in 1967.

The company provides a complete range of mechanical services, mainly to the commercial sector with a mix of public and private works undertaken.

Public Works

include contracts undertaken for the various government departments, including the OPW, the HSE & Defence Forces.

Private Works

include a wide range of services provided across a variety of sectors and facility types, including offices, factories, warehouses, sports clubs and religious orders.

Most of our work force are long time employees, all highly qualified and skilled. To ensure the highest standard of management and workmanship, the company maintain certification of the ISO 9001:2015 standard.

We are also members of CIRI, RGI, F-GAS, MEBSCA, Construction Federation and SAFE T accredited