Serco specializes in on-site machining, maintenance, and repair services for flanges and valves. They offer portable machine tools for surfacing, boring, threading, counterboring, tapping, resurfacing, grinding, and conical machining. The company caters to industries such as energy, defense, chemical, high purity, ship-building, aerospace, and aeronautical industries. Serco serves tube, valve, flange, elbow, and sheet metal manufacturers, as well as boilers and heat exchangers. Their services include operator training, commissioning, rentals, technical documentation, product demonstrations, and technical assistance.