Vivint Home Security has a cancellation policy that varies based on your location: United States including New York and Puerto Rico - 3 days after installation. Alaska - 5 days after installation. Canada - 10 days after installation. Cancellation policy for Seniors - 30 days after installation. Vivint's return policy, simply put, says that you have three days to cancel the service unless you live in Alaska, Canada, or you're over 65 years old. If you are moving, you will be subject to their moving policy.