You’re buying a house with security alarms
A new house may come with a security system. All the devices work, are placed in the best places, and are ready to go. In this example, just turn on the phone to call and start a new contract. A Vivint professional will still come out to ensure there are no compatibility problems, and they may offer suggestions on where you should replace bad outdated components. It's a quick visit, and you can get your 24/7 monitoring set up without worrying about any new alarms and cameras -- unless you add on.
The old homeowners can give an existing Vivint contract to you for a nominal transfer cost to make the transfer easier. If the outgoing residents are moving to a condo or retirement community, transferring the Vivint contract might be an addendum of the sale.
You need to move and take your old equipment with you
You might need to take your old Vivint system with you to a new home when you move. That’s pretty easy to transfer, as most components are wireless. You can uninstall each component by yourself or contact a professional installer to come and dismantle the system. Then a pro will hang the same devices -- and any smart devices you want to add -- in your new home. Your home security contract will remain the same.