Calling a locksmith due to an emergency is a common occurrence, and may be the only time you've ever called a locksmith. However, as described below, locksmiths also provide many non-emergency services that can help keep you and your home safe.
You've Just Moved into a New House
You should always change your locks when you move into a new house. Moving.com explains that this is known as key control, and refers to knowing exactly who has keys to your house.