locksmith
A locksmith repairs locks
A cutler
A locksmith. Home depot can make copies of keys.
To find someone to do kitchen repairs I would call a local contractor.
A glazier.
If you mean 'What do you call someone who repairs books?' then I think the answer is a 'bookbinder'. Sources: 'Inkheart' by Cornelia Funke
A lock picker, or a picker.
dragon
auctioner
Draper
Ironmonger.
A hatter