If you try to open the door yourself, you may cause damage that cannot be repaired.

If it is safe to do so and you are able to, use another door to get in or out of the property, and call a Yale Expert to come and open the door for you.

They will be able to open the door for you, advise you whether the lock can be replaced and, if so, fit the appropriate Yale Doormaster™ lock.

If a local Yale Expert is not available, then your local locksmith may be able to help.