The advice comes after thieves targeted outbuildings in Latona Street, Walney, between Friday and Saturday.
Sheds were broken into and property stolen.
A police spokesman said: “Cumbria police are taking this opportunity to ask allotment and shed owners to make sure they are locked up when not in use.
“Also, any high-value items should be hidden out of sight and covered or taken away and put in a safe pace.
“Anyone with information on these thefts or any others should call Barrow police on 101.”
Alternately anyone who saw or knows what happened can call Crime stoppers anonymously on 0800 555 111.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here