Wanganui residents are being warned to be wary of people knocking on their door offering to do work.
A man was picked up by police on Monday after knocking on doors in Springvale over the long weekend, offering to do jobs such as gutter clearing and window cleaning.
One resident feared he was trying to get into houses with a view to stealing property.
An elderly Stafford St resident said a man knocked on her door, but before she had got to the door and unlocked it he had moved on to the next house.
"Then my phone rang, and it was a neighbour who said he had been to her house offering to clean her guttering. She had the impression he was looking to steal something and told me not to open my door.