You moved into a house with a pre-installed security system
Sometimes when people close on a house, a home security system is already established. All the alarms and cameras function well, are placed in the correct places, and are ready to go. In this case, you might see that you have to call and start a new monitoring contract. A Vivint professional will still come out to ensure there are no compatibility problems, and they may offer options on where you should replace bad outdated components. It's a preliminary visit, and you can have your 24/7 monitoring set up without worrying about any new components -- unless you make additions.
The outgoing homeowners can transfer an existing Vivint contract to you for a small transfer fee to make your life a snap. If the owners downsize to a condo or smaller home, you keeping the home security service may be a part of the sale.
You are looking to move and bring your home security components with you
You may need to bring your old Vivint system with you to a new home when you move. It should be pretty easy to accomplish, as modern alarms and smart devices are wireless. You can remove each component by yourself or contact a Vivint expert to come and take care of everything. Then an expert will set up the same features -- and any additions you want to put in -- in the new home. And your home security contract will stay the same.