Neadus Callus Fire & Security ltd. provides various fire, intruder, access control, and CCTV security services. They install, maintain, monitor, and service fire alarms, intruder alarms, access control, CCTV systems, and emergency lighting. The document includes testimonials from customers praising Neadus Callus for their professionalism, reliability, honesty, delivering projects on time and on budget, and providing a top class service.