How Does a Residential Locksmith Upgrade Outdated Door Locks? Old door locks can make you feel uneasy. You may hear a small click and wonder, “Did it really lock?” You may also worry when kids come home alone. That stress can build fast. Yet, you do not need to live with it. In Fort Collins, many homes still use locks installed years ago. Over time, keys wear down. Pins wear out. The weather can also hurt parts inside the lock. Then, the lock...