You moved into a house with a pre-installed home security system
Sometimes when people buy a house, a security system is already established. All the components function well, are placed in the right places, and are ready to go. In this case, you might discover that you have to call and set up a new service contract. A Vivint professional will still show up to ensure there are no integration issues, and they may offer ideas on an upgrade or two. It's a preliminary trip, and you can have your monitoring set up without having a bill for any new alarms and cameras -- unless you get some new devices.
The old owners can give an existing Vivint contract to you for a one-time transfer fee to make your life a snap. If the owners are moving to an apartment or retirement community, you keeping the home security contract might be a condition of the sale.
You need to move and bring your existing components with you
You might want to take your old home security components with you to your new place when you move. Luckily, it's fairly easy to do, as many components are plug and play. You can remove each device by yourself or call a professional installer to come and take down your devices. Then our installers will set up the same components -- and any additions you need to make -- in the new home. Your home security contract will remain the same.