The regiment provides the combat engineering capability of the Western Australia based reserve 13th Brigade.
The unit's first major operation was constructing a suspension bridge over the Helena River at Guildford in Western Australia.
In the Second World War the Company served in Darwin in March 1943 before being deployed to New Britain in October 1944, where its major assignment was the construction of a 10,000 ton jetty.
It was disbanded after the war in 1946 until it was reraised as the 13th Field Squadron, Citizens Military Force (the precursor to the Army Reserve).
It adopted the mascot of a 'little red devil' in the early 1960s, and was made part of the 13th Brigade on 1 February 1988.