Start with the result you need
Changing which keys work is different from making a reluctant door operate normally. Rekeying information focuses on key access for suitable existing cylinders. Lock repair focuses on operating symptoms and the condition of the opening. If both apply, mention both rather than treating them as one automatic fix.
The same distinction helps with vehicles. Keys locked inside, a last key missing and a key that does not start the car are different requests. Automotive locksmith guidance explains which details help establish the situation and confirm supported work.