John Thompson specialises in the construction and maintenance of power and utility boilers. These boilers include supercritical boilers with pressures up to 276 bar at superheated steam temperatures up to 569 °C. We are experts in the welding of alloys for high temperature and pressure applications typically used in boiler construction and boiler maintenance services.

Our services include the construction, maintenance and refurbishment of various boiler auxiliaries such as coal mills, pulverised fuel burners and piping, ducting and flue gas cleaning equipment.

We supply boiler piping and tubing, as well as manufacture specialised boiler components. Quality is ensured through the application of the Pressure Equipment Regulations, SANS 347, ISO 9001, ISO 3834, client specifications and requirements, and our own standards.

Our execution practices optimise productivity and minimise downtime, while adhering to strict quality and safety standards.

Our services cover more than 30 utility boilers, boilers in the paper industry and nuclear power plants.

Safety and quality are paramount in the nuclear industry. John Thompson strictly adheres to the South African National Nuclear Regulator’s requirements on quality and safety management as per RD0024, thus ensuring the highest quality and safety standards. 

John Thompson has been offering these services to the nuclear power generation industry since 2020, after developing a Nuclear Safety Culture within the organisation.