A warning has been issued over rogue traders calling at homes in Dronfield touting for work.
Derbyshire Police issued the warning after receiving three reports of strangers calling at homes offering to do pointing and roofing work.
In one of the incidents, damage was caused to the roof of a property on Cross Lane by men who had called that day about carrying out roofing work.
PC Sally Horner said: “We strongly advise local residents not to agree to work by any strangers who turn up at your doorstep unannounced and offering to carry out repairs to your property.
"Remember that you do not have to open your door to cold callers, and if you don’t recognise the person then don’t open the door. If they are selling something or offering to do any work on your house or garden, tell them through a locked, closed door that you are not interested and ask them to leave. If they persist tell them you will call the police.
“I would also ask people to look out for their neighbours, friends and relatives.
“If notice anything suspicious please contact us as soon as you can, and pass as many details on to officers as possible including any descriptions or details of people calling at homes or vehicles they may be using.”
For any work costing more than £42, doorstep traders should legally provide a written notice giving customers a 14 day cooling off period.
Anyone with information should call Derbyshire Police on 101.