The company started life in a tin shed in Mt Roskill in 1978. Ross Walker and Colin Menzies formed a partnership that started off repairing welding equipment. However their diverse technical interests soon saw them producing an eclectic range of electronic products - including urinal controllers, refrigeration alarm systems and spot welding controllers.

Within a few years they had employed John Shapcott, who has a background in power electronics. By now the company was also taking on commissioned design work, producing a wide variety of high powered control equipment.

The repair of welding equipment has always remained a core activity and this includes spot welders of all types. The company has developed a substantial expertise in all aspects of spot welding and is frequently asked to assist in developing specific processes. Electro Control's attention was drawn to the European company TECNA, who specialise in the manufacture of spot welding equipment and were identified as a natural partner to its activities. It has been appointed TECNA's NZ agent and since 2002 has supplied a wide range of TECNA welding equipment to NZ industry, ranging from simple hand held spot welding guns to sophisticated high powered inverter spot welders that create no mark on the work.