How much does it cost to have a locksmith change house locks?

The price for a locksmith will vary depending on the area you live in and what type of lock you're working with, but on average the national hourly rate for a locksmith is $50-$60 per hour.

Most locksmiths also charge a service call to get to you house with their equipment as well as a per lock charge. Usually it's a per lock or per hour, but not both.