Emergency lockout responses are required for various reasons. These include: Baby locked inside the house with the parents locked out. Locked outside and need to catch a plane. Somebody locked inside injured or sick. Water leaking in a unit block and spreading to other units.
Emergency lockouts require an experienced locksmith who can respond to the situation accordingly. This involves thinking clearly and concentration on the job at hand, but also calculation time needed for curtain methods of opening.
Mechanical lockouts are common and in some cases may require drilling to be opened. All possible care is taken to preserve the lock as parts causing the problem can sometimes be replaced.
In the past, locks generally needed replacing due to old age and parts just wearing out. These days there are many cheap locks flooding the market, breaking down well before their time and even having an extra key cut can sometime be an issue. Using a well-made and reliable lock will save you money long term. Using a well known or 'trusted brand' of lock doesn’t guaranty you are getting a reliable lock. Consulting with a trusted locksmith is the best way to get a good reliable lock that will last.