All external doors should be fitted with a kitemarked lock or nightlatch certified to BS 3621. For timber doors we would recommend a BS 5 lever mortice deadlock or a sashlock. A door fitted with one of these can only be opened with a key, so a thief can’t smash a glass panel or climb in through a window to open it from the inside.
Garden theft is on the rise and sheds and garages can also be vulnerable.A strong, lockable gate fitted across a side passage will prevent a thief getting to the rear of a property. These can be secured using a rim lock or padlock and hasp.