Two children were asleep inside as a burglar broke inside a Keysborough house on Wednesday 4 July.
The unknown offender jemmied open an external garage door at Chi Avenue about 7.50am.
They entered the house through an internal door and stole several items including cash and house keys.
The children aged six and 13 were asleep upstairs.
No one was injured.
Greater Dandenong Crime Investigation Unit detectives are investigating.
Any information to Crime Stoppers on 1800 333 000 or crimestoppersvic.com.au, or Greater Dandenong CIU on 9767 7487.