Most people are aware that the job of a locksmith includes fitting, maintaining and repairing locks. However many locksmiths also have a wide expertise in all areas of domestic and business premises security. When you engage one you can ask him to examine all aspects of your home or business security systems. He may have wider expertise than other tradesmen such as those who specialize only in one aspect of security such as alarms or CCTV. You can make sure you pick a reliable and competent person by favoring a member of a relevant trade association.