Doors and windows
Before checking the locks on your front, back, patio, french window and garage door, have a good look at the framework around the doors. It should be securely fixed and in good condition, otherwise good doors or locks are useless.
Check the condition of the door, including thickness .Doors must be at least 44mm thick for a 5 lever mortice lock to be fitted. If the door is too thin, then a rim deadlock should be fitted.
Check your windows from the inside and outside. Whether the window is wood or metal, you will find an inexpensive window lock to fit each type. Make sure that valuables are not visible from the outside.