Reviews of the Best Home Alarm Systems in the United Kingdom The best home security system is SimpliSafe. The very best home security system. SimpliSafe. ADT: Our most reliable recommendation. Most reliable recommendation. ADT. Verisure The most all-encompassing option is smart alarms. The selection that covers the most ground. Verisure. Ring Alarm is the most affordable option. Budget pick. Ring. The dwelling of choice is a smart house. Abode. Abode.