On 31 October, at around 9.30pm, six individuals approached the property in Crabtree Way, from the direction of Grove Park.
One of the group lit a firework and pushed it through the letterbox of the property. The firework burnt the carpet in the hallway, and the amount of smoke it created in the small space set off the fire alarm.
The victim was able to get out of the property and call police.
Police are now keen to speak to anyone who saw a group of six boys, aged approximately between 15 and 18, all wearing dark clothes, in the area.
Anyone with any information is asked to call 101 quoting reference number 40/63103/19