Swindon Police are urging members of the public to be alert following three distraction burglaries.
They happened in the Parks and Walcot areas on Tuesday, 8 June and may be linked.
At about 3.15pm a man knocked on the door of a house in Welcombe Avenue, saying he was there to fix the water pipes.
While he was being shown into the kitchen, the homeowner thought he heard someone going upstairs. He later discovered that someone had stolen jewellery and cash from his bedroom cupboards.
The homeowner described a man in his twenties of skinny build and with short, dark unkept hair. He was wearing dark trousers and a light blue shirt.
A similar incident happened at about 4.20pm when a man approached a woman in her garden in Shaftesbury Avenue and told her he was there to fix a burst pipe.
Her daughter then found a second man upstairs searching their bedrooms.
The first man is described as being 5ft9ins, white and wearing a gold mask and black cap. He introduced himself as 'George' and was wearing a black bomber jacket, a white shirt, black trousers and a Gucci belt.
The second man was of a similar height and is described as being of mixed race with short, dark curly hair. He was wearing a white shirt and blue jeans.
The third incident happened in Bilborough Drive in Walcot between 3pm and 7.45pm while the homeowners were out.
A white man aged between 17 and 21 approached a homeowner, asking if they wanted their windows cleaned. Once the homeowner left the house, the front door was forced open and some cash was stolen from a tin in one of the bedrooms.
PC Grant Hesketh from the South Central Neighbourhood Policing Team said: “We are urging people to remain vigilant and never allow anyone they don’t know into their home.
"If you are ever suspicious or have any doubts about anyone, don’t let them in. If you have a door chain, make sure it’s on before opening the door.
"If they won’t leave you alone, close the door and ring somebody you trust to come and help you.”
Anybody who saw anything suspicious or has CCTV or Ring doorbell footage from the area at around those times is asked to call the police on 101, quoting log 54210054910
Crime prevention advice can be found at https://www.wiltshire.police.uk/cp/crime-prevention/