It was reported on Tuesday 7 January four men entered a property in Medhurst Gardens and stole electrical items including laptops, mobile phones and iPods.
A woman, at home with her daughter and two sons, answered the door at about 9.10pm and the group of men entered.
They threatened the occupants with what is believed to have been a knife before leaving with the items, which also included a cash card and a small quantity of cash.
No injuries were reported.
If you have any information, call DC Greenidge on 01474 366001 quoting reference XY/818/14. Alternatively, contact Kent Crimestoppers anonymously on 0800 555 111.