A person who repairs and installs locks is called a locksmith. They specialize in handling various locking systems, ensuring security for homes, businesses, and vehicles.
A locksmith repairs locks
I think the most proper name would be glazier, which is someone who installs and repairs glass.
we call them electricians
locksmith
A glazier
I say a drywaller.
A locksmith. Home depot can make copies of keys.
The person who repairs your car is called a mechanic.machinate
A person who repairs pipes would be a plumber. I have never heard of any person who specifically repairs tape.
a tinker
A plumber.
We call him Plumber.