At Guardian Security Options we provide Home Security Systems Fire Alarms Burglar Alarms Security Camera Systems Key FOBs and access control. Monthly Specials. Protect Your Home is one of the largest home security companies in the world. We have more than a hundred installation branches throughout the U.S. supporting and installing home security systems. Because we have home security system installation service centers across the nation, most locations can have an ADT monitored home security system installed within 24 hours to make sure you get immediate assistance in helping to protect your home and loved ones. Once your home is equipped with the security system, it is connected to a network of ADT Monitoring Centers nationwide, delivering non-stop security monitoring 365 days a year.