You’re buying a house with security components
A new home may come with an existing security system. All the devices work, are placed in the right places, and are ready to go. In this instance, just get the phone to call and set up a new service contract. A Vivint installer will still come out to ensure there are no usability problems, and they might offer options on upgrades. It's a preliminary visit, and you can have your 24/7 monitoring set up without paying for any new components -- unless you get some new devices.
The outgoing owners can transfer an existing Vivint contract to you for a small transfer fee to make your life simpler. If the owners are downsizing to an apartment complex or retirement community, turning over the security contract might be an addendum of the sale.
You need to move and take your existing equipment with you
You may need to bring along your old smart devices with you to your new place when you move. That’s fairly easy to do, as many alarms and smart devices are wireless. You can uninstall each component yourself or use a Vivint installer to come and dismantle your devices. Then our installers will put in the same features -- and any smart items you want to add -- in the new house. Your home security contract will keep the same.