Maghull Labour Action Team is warning residents about a spate of burglaries in the town.
Labour Action Team members have been contacted by an increasing number of other local residents who are reporting the burglaries.
It is understood that opportunist criminals are gaining access to the houses through unsecured front doors.
Labour's Maghull Town Council Deputy Mayor and Maghull Labour Action Team member Cllr Steve Kermode urged householders to become more security conscious.
Cllr Kermode said: "We have been contacted by a number of people now raising their concerns after hearing about this spate of burglaries in the area.
"In the latest incident, the burglars walked through the front door which was unlocked.
"This is an issue which the police have raised before. Not too long ago, the police conducted a survey and found that one-third of front doors they tried were unlocked. But clearly some people still aren't getting the message and are leaving themselves open to sneak burglaries."
Cllr Kermode said the design of some of the PVC doors means that some householders don't realise they are leaving the door open to thieves.
Cllr Kermode said: "The design of some of these doors is that you can still open them from the outside even though they have been closed from the in. What you have to do is make the effort to lock them with a key - which lots of people don't do.
"So criminals are finding it easy to slip into people's homes because the occupant has inadvertently left the door open.
"So my advice is to always lock the door behind you, keep the key away from the front door to avoid hook and cane burglaries but in a place where it is easy to access in case of emergency and the need for swift escape.
"I and the rest of the Labour Action Team are passing this message on to people throughout East Sefton and I would urge people to advise their neighbours, particularly the elderly"