Locks are our everyday tools. Literally wherver you go, you see locks, you lock the house door or storage, garage and many more. As using cycle increases locks tend breake or needs to be rekeyed. Some of them are easier to do, someone of them are really hard that only professional can do
Locksmith is better than handyman when it comes to installing locks because it is a safety gurantee that locks are installed properly. Like many other professions, locksmith is a highly specialized job that can be perfected by doing it everyday.
While hadyman can do most of the simple lock installations, it is not his/her job that does on daily basis. Moreovere, some of the states require a locksmith license to with on locks.
Call a locksmith expecially if it is a commercial lock installation. It is better secure the property than being sorry for extra few hundreds dollars saved.