Burglar alarm system in the South East

Safeguard your property with our state-of-the-art reactive security systems.

Protect what’s precious

Do you need to secure your shop? Do you want to prevent break-ins at your home? Come to us. At Sonic Security Systems, we can install burglar alarms to suit commercial and domestic properties.

Foolproof protection

Installing a burglar alarm will go a long way in safeguarding your property from threats and intruders. At Sonic Security Systems, our alarms can be customised to alert your family or the authorities as per your specific needs. We offer an ARC monitoring which includes police response and have a URN from Kent Police which is required by insurance companies. We are members of SSAIB so you are in good hands. We also install intruder alarms, CCTV systems and door entry intercoms. Based in Rochester, we operate throughout Dartford, Maidstone, Greater London and Kent.

Burglar alarm fitting and more

  • System sales
  • System service
  • System installation
  • Monitoring of existing systems
  • Ensure your alarm sounds only for the right reasons

    User error is the largest cause of false alarms which reduce the effectiveness of your alarm system. Furthermore, if your calls are presently passed to the police, this may result in the withdrawal of police response. The following advice will help you reduce the danger of false alarms by operating your security system effectively.


    Ensure that the security system is operated by properly trained people, and those who are familiar with the system, including details of protected areas. They must be in possession of all necessary keys, codes and proximity fobs for the premises. They must know the correct procedures for setting, un-setting and cancelling an alarm and resetting the system. They must have access to documentation with full user instructions and the locations of all detectors and other controls which will assist in fault diagnosis if a problem should arise. NOTE: if the system is maintained under a current contract, further assistance is available via the telephone enquiry helpline. All telephone numbers should be provided with the maintenance agreement.

    Before setting the alarm

    Before attempting to set the alarm, you must ensure that all doors and windows connected to the security system or within the alarmed areas are closed securely, and are not likely to be blown open and activate the alarm.


    Wherever window sensors are fitted, ensure that heavy curtains, blinds and other such features are secure and prevented from knocking against the windows, as this also could cause the alarm to sound.


    In areas covered by movement sensors or detectors, ensure that their fields of vision are clear and free of moving objects which could cause an alarm activation. An open fire within view of a detector should be put out as this could cause an alarm activation as well. Pets should be excluded from protected areas or confined to those areas protected by pet tolerant detectors. NB Different manufacturers of pet tolerant detectors have differing maximum weights of pets that their detectors are tolerant to. These range from 20 Kg up to 45 Kgs depending on the manufacturer. An example is that pet tolerant detector/s was installed to meet the parameters of the owner having one dog of medium size/weight. The owner did not experience any false alarms/alarm activations when the alarm was set. The owner then decided to introduce another dog into the premises and then started to experience false alarms/alarm activations for no apparent reason. The cause would be that the combined weight of the two dogs in proximity to each other, would activate the pet tolerant detector because the size/weight of the dogs would be outside the safe working parameters of the detector. This, of course would be dependent on the size/weight of the two dogs.


    Where window sensors are fitted, ensure that the alarm is not activated in error by a window cleaner cleaning the windows whilst the system is set. Either make the window cleaner aware or arrange to have the windows cleaned when you are present and the system is in the unset state. Be aware that automatic equipment, air conditioning and heating systems, washing machines, thermal fax machines etc; operating within protected areas can be a cause of an alarm activation when in the set state. In large enclosed premises, warehouses, factories, barns and garages, ensure that wild birds or animals are not able to enter protected areas as these can cause an alarm activation. Spiders, flies and other insects around detectors can cause an alarm activation. Also and this can be avoided by occasionally spraying with an insect repellent around and behind detectors. Rodents can cause an alarm activation by damaging the systems cabling. Therefore if there is evidence of rodents take steps or seek advice to eradicate them. Your alarm system will be designed for the premises it is protecting, and environmental changes can cause problems. Extremes in temperature, particularly sudden changes can cause problems along with intense light or sound. Inductance from electrical sources are all possible causes for an alarm activation. Protect all alarm cabling and equipment during building and decorating work. Ensure that all detectors are securely in place and lenses are free from paint or other contamination. If in doubt, have them removed and taken off the system whilst work is being carried out.

    System information

    Information from the keypad will indicate the system status and identify any problems which might occur. It will also warn if the 230 volt AC mains supply to the system has been interrupted or severed, in which case the standby battery will operate and hold the system up until becoming exhausted and the bell will then activate on self-power. (The duration will vary according to the condition of the battery and the activity or passivity of the detectors during the standby period. Therefore, to ensure the best possible battery condition, regular maintenance is recommended). The cause would be that the combined weight of the two dogs in proximity to each other, would activate the pet tolerant detector because the size/weight of the dogs would be outside the safe working parameters of the detector. This, of course would be dependent on the size/weight of the two dogs.

    In the event of a false alarm:

    Never reset the system until the cause has been identified and noted. Check the zone number which will be displayed on the keypad/control panel, this will indicate where the activation occurred. (The zone layout of all sensors fitted should have been provided when installed and/or on the control panel if fitted) Inspect the zone for cause of activation and if this cannot be found, you will need engineering advice. If you have a current maintenance/service agreement you will be in possession of the call out procedure. Ensure that all false alarms are noted down as this history is invaluable to the engineers investigating on-going or intermittent problems. If the system includes panic buttons, the reset key must be kept in a safe place but readily available. The reset key is solely to reset the panic button after activation. Also, your set/unset code will have to be entered to silence the alarm. Ensure that everyone on the premises is aware of this feature and that children do not play with either keys or buttons (panic buttons are still active whilst the system is unset).


    To keep your security system in the condition in which it was installed. To fully ensure it remains effective, regular maintenance is essential. Therefore, if you do not have a current maintenance/service agreement contract you are strongly advised to consider one now. To discuss this and any other matters, please call 01622 230823 / 0845 415 4122

    Get in touch with Sonic Security Systems for alarm prevention in Rochester and the South East. 0800 689 5154 and 01622 230 984

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    Sonic Security Systems Ltd,
    Unit 2 Ringshill Farm,
    ME1 3TP

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