Mortice locks especially 5/6 lever British Stardard locks offer a great level of security to you property. But if you ever loss a key or have been locked out you will need to contact your local locksmith to gain entry. A qualified local locksmith will be able to gain entry either by picking the lock or in some cases use a over lift technique to through the bolt and open the door with out causing damage to the lock. This is called non destructive entry and is the best choice. There are companies out there who masquerade as locksmiths who us destructive methods to gain entry that result in un repairable damage to your lock and a expensive replacement will be required, only use a locksmith that is fully qualified in non destructive lock entry.
The locksmith in the video makes short work of opening a 5 lever BS mortice lock, this is the result of years of practice and a great knowledge of locks and how they work.
Noyon Transport 