South Australians are being warned that itinerant traders known as 'bitumen bandits' are targeting business in suburban Adelaide.

South Australia's consumer watchdog has received reports of itinerant tradies soliciting business in the Prospect area and is keen to keep track of their movements.

Often the tradies move from region to region, and Consumer and Business Services works with state and federal agencies including the South Australian Police and Australian Border Force to identify bitumen bandits and gather evidence of their offences.

Regulators throughout Australia share information in relation to bitumen bandits to assist in catching them early as they move from one state or territory to another.

Bitumen bandits are roaming, unlicensed traders who travel from town to town targeting both homes and businesses, claiming to have leftover bitumen from a previous job and offering to do cheap work.

However, the work is substandard and often leaves consumers out of pocket as they struggle with the cost of remedial work to fix the mess they are left with.

Anyone who has encountered these individuals are encouraged to contact Consumer and Business Services on 131 882 or at www.cbs.sa.gov.au/contact-us as quickly as possible.