Matson Alarm is the largest privately-owned home security and commercial security provider in the Central Valley of California. Our humble beginnings began in Fresno, California in 1974 with brothers Larry and Mike Matson installing security systems in the homes and businesses of local residents. Eventually we grew to serve many areas throughout the state including Visalia, CA. People in Visalia choose us because we're local, professional and use the best and newest technology available to our industry.