South Australia's consumer watchdog has urged people living in the Riverland to be wary of anyone offering cheap asphalting services in the region.
Commissioner for Consumer Affairs Dini Soulio said Consumer and Business Services has received reports of unlicensed operators claiming to offer discounted services around Renmark.
"We had reports of signs erected in the region from contractors offering cut-price asphalting for driveways and carparks - and have since confirmed the contractor making this offer is unlicensed," he said.
"It's a timely reminder for all consumers to be on the lookout for unscrupulous operators.
"Often these people will go door-to-door, claiming to offer discounted services and using high pressure tactics to try and get people to hand over their money.
"If you're approached by someone going door-to-door, remember - don't give in to high pressure tactics.
"Take common-sense precautions to ensure the person you're dealing with is legitimate. Check that the individual is licensed, go online or talk to friends who've used that contractor and always shop around - remember the cheapest quote may not be the best."
Mr Soulio said that Consumer and Business Services has reported the matter to police, and is urging anyone who has been in contact with a contractor they suspect is unlicensed to contact them on 131 882.