On Guard has been providing alarm, surveillance, security, and automation services to the Chicago-land area since 1990. Customer satisfaction is our #1 priority. From complete installation services, to technical support, to our 24 hour alarm monitoring services, we?ve got what it takes to provide you with the absolute best user experience. In 2010, we were awarded the Super Service Award from users on Angie?s List for consistently providing exceptional customer service. Check out our home security systems reviews and see why others are calling us the best home security company in Chicag
