As a locksmith I install, service, repair, and gain access to locks... I know them inside out; how they work; how they fail; how to bypass them. When you use a Master Licenced locksmith you are using an industry professional with demonstrated experience.
This experience is key when it comes to tricky doors such as this one in West Pymble. The door was a decorative style with a very short backset (distance from the edge of the door). Not much could be used in this circumstance that would look nice in addition to providing security. In consultation with the customer, I installed a mortise deadbolt with an internal turnsnib.