In an effort to deter thieves, investing in a proven system from one of the best home alarm companies will certainly give you peace of mind. Before you make the investment though, it's best to take some time to study and understand the different types of systems, what they do, how they do it, how they can be tailored to your needs and fit within your budget. The choices are varied - the system can be wired, wireless, installed by a contractor or installed by the homeowner