Today i was called to a property in Grays where the customer had a new door fitted with a high security cylinder with a thumbturn. This particular make of thumbturn cylinder does not allow the key to work on the outside if the knob on the thumbturn is not in the correct position so the customer was locked out. The company that installed the door did advise the customer of this and if this happened they would not be getting in through the front door but they rushed out  the door and the knob was pointing upwards. I arrived and opened the door with no damage and the customer has requested the cylinder to be changed