All locks have security systems and systems that can be overlooked. As for your hypothetical scenario, you wouldn't need the owner. My main source of income is changing the key for abandoned, foreclosed and blocked properties (evictions). I almost never have the keys, the owners are rarely present and usually no one bothers me.
The real security in a residential area is its neighbors. If your neighbors know you, you tend to be surprised if someone is opening your door without you being there. Get to know your neighbors and your home security will increase dramatically. The simple answer is that a locksmith can always open a residential door.
But, of course, there is a little more to know about how the specifics of a lockout can affect the service and the various methods that can be used to open a locked door. That's why locksmiths employ a whole range of lock picking procedures so that everything can be opened quickly and reliably. But you can defend yourself from that with stronger locks, doors and windows, right? But can you defend yourself from a locksmith or can they open any lock? Is it stupid to think that locksmiths have powers that thieves don't have? In these cases, the locksmith will always change your locks and will never leave you without a working lock. Join the UK's largest locksmiths association, all membership levels available to those who are new to locksmiths or commercial locksmiths.
The easiest way to get back in is often to call a locksmith, but there are some solutions you can try yourself first. In the event of a lock or loss of keys to a restricted or suitable lock, an MLA or MLA locksmith may point you in the correct direction. When you hire a locksmith to open your door, they may encounter some problems that make opening the door a little more problematic. The first step for a locksmith to open the door of a house is to find out why the lock won't open and the best way to open it.
After being locked, you may have to replace the keys, a locksmith can replace any type of key even if the key is broken. A locksmith will avoid damaging the lock whenever possible, but there will be certain cases where the lock will have to be opened destructively. Although destructive entry may sound threatening, it is a perfectly respectable and valid way for a locksmith to open the doors of the house. Without intimate knowledge of how the safe is opened and closed, the locksmith will not be able to open it.