If a key no longer turns in a lock, that is a clear sign that the lock needs repair. Before calling the professionals here a2 247 local Locksmith in London to help you rectify the situation, you should attempt lubricating the keyway and using the lock again. If this does not work, it is a sign of probable lock malfunction. This does not automatically mean that you have to replace the lock.
Our locksmith technicians will look at your lock to determine the problem and attempt to repair it if possible. You would then be informed of the repair cost before work begins.