Home alarms are a good way of protecting your property against issues such as damage and theft. Statistics show that properties that have a home alarm are less likely to be burgled, for example. There are various kinds of home alarm systems that you can set up to protect your property.
At a basic level a home alarm will be managed via an alarm centre and turned on and off via its keypad. So, when you leave your home you key in a code to set the alarm and when you return you will be given a pre-set period of time to enter the code again to disarm the alarm. A burglar entering the property would not be able to input the right code so the alarm would ultimately go off.
Alarms can be hard wired to doors and windows to activate when they are opened or can work wirelessly via sensors that will be activated by movement. The kind of response you get from a home alarm will depend on the kind of alarm you buy. Some alarms, for example, will merely go off to scare off burglars and to perhaps you're your neighbours that something is amiss whilst others can give an alert to the alarm monitoring company who will either alert the police or come out themselves.
Some alarm systems can be purchased and fitted as one-off payments which you will then manage yourself. As an alternative here you can buy your own system and fit it for yourself if you wish. Other options include setting up a contract with an alarm company who will fit and maintain your alarm system for you and who may also offer response services into the bargain for a fee.