Castle Alarm Securities has been a NACOSS approved company since 26th June 1995 and also hold a ISO 9002 approved installer certificate On February 25th 2004 Castle Alarm Securities received the prestigious NSI Gold Medal in recognition of the many years of commitment and hard work ensuring that Castle Alarm Securities works to the highest of standards 2008 see's Castle Alarm Securities celebrate their 25th Anniversary, they have been installing quality alarm systems, both audible and monitored for home and business since 1983 We are committed to providing both new and existing customers the best service and in recognition of this, we are proud to have received the NACOSS Gold medal'