Yes and No.

Yes, ONLY if you have the lock that needs changed.

and

No, if you do not have the lock already to change.

To make this simple. If you DO NOT have a lock to replace the old lock that you want to have changed, then No we can not help you.

The reason why is because some people are not happy with the lock that we buy to replace the old one, so it is better that the owner buys the Lock for us to exchange with. Most locks are standard. So buying a replacement lock at a local hardware store is not hard.