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At Andromeda Fire And Security we understand that the need to protect your family, home and business is an ever increasing part of daily life. We use the latest technology along with our unrivalled passion for providing our customers an unbeatable service to provide you with a security system tailored to your specific requirements.

Here at Andromeda Fire And Security our engineers are highly skilled in the design, installation and maintenance of a wide range of equipment including conventional hard wired systems, wireless systems or hybrid systems that incorporate aspects of each. All of our intruder alarm systems are installed to EN50131/PD6662 and we can install them to any grade you require (1-4) the grade of system will depend on your insurance providers requirements and the level of risk associated with your property.

You can watch the HKC Intruder Alarm Systems App Video by using the following link.

The standards

The standards to which the Intruder Alarm industry has in the past installed systems is BS 4737 or 7042 for high security and BS 6799 for wireless systems. These standards are replaced by a European Standard, EN50131 series. There is a suite of European Standards available to which companies can survey, install and maintain. The European Standards currently have a document called PD 6662. This is a Published Document and is used to call up parts of the current British Standards, where European Standards are not yet available.

European Standards have been accepted by the Insurance industry and the Association of British Insurers (ABI) would now like installing companies to apply them.

The ABI consider that because European Standards are “risk-based”, they form a better structure for the technical design of security systems. The major differences between EN 50131 and BS 4737 are:

  • Structured standards
  • Grading of systems
  • Classification of equipment
  • Risk based

This provides a structured approach to:

  • Assessment of risk
  • Technical survey
  • System design
  • Installation of the system in accordance with agreed specification
  • Installation of equipment in accordance with manufacturers’ recommendations

An advantage for insurers and surveyors applying European Standards to intruder alarm systems is the specification of grades appropriate to the associated level of Risk. One of the main differences in the European Standards is the grading of systems, which is not a feature of BS 4737.

The grading of a system based on a structured risk analysis will determine the:

  • Extent of the system
  • Signalling
  • Tamper security

Within the new European Standards there are four security grades:


Grade 1 - low risk

For a Grade 1 system intruders are expected to have some knowledge of intruder alarm systems and be limited to a range of easily available tools.


Grade 2 - low to medium risk

A Grade 2 system expects intruders to have a basic knowledge of intruder alarm systems and the use of a general range of tools.


Grade 3 - medium to high risk

A Grade 3 system expects intruders to be conversant with intruder alarm systems and have access to a comprehensive range of tools.


Grade 4 - high risk

Finally, a Grade 4 system is where security takes precedence over all other factors. At this level intruders are expected to have the ability and resources to plan an intrusion in fine detail and have a full range of specialised equipment,


All alarm systems need regular maintenance to ensure they are working at peak performance and here at Andromeda Fire And Security we offer a number of maintenance contracts to suit your needs.


Andromeda Fire And Security have over a decade of experience in the industry and are capable of working on almost any conceivable intruder alarm system so if you feel you are maybe paying to much for your maintenance package, unhappy with the level of service you are being provided or are just considering a change please contact one of our dedicated team to discuss what we can do for you.