We realise that our customers have other priorities than to worry about regular servicing and maintenance on their systems. Intruder & Hold Up Alarm Systems (I&HAS) play an essential role in personal and property protection and need to be serviced and maintained regularly to make sure that the system remains fully functional at all times. The preventive maintenance service is designed to detect early signs of component failures and prevent these becoming faults that may prevent the system operating correctly when most needed.