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CAI Plus

Our Plus membership is a higher grade as 50% of the engineers have supplied a DBS criminal record check along with a Safe Working at Heights certificate. These documents have renewal timescales.

Domestic Installer

Engineers who only service single dwelling units such as houses.

Systems Installer

Companies who undertake work in multiple dwelling units, public houses, council properties, hotels & apartment blocks. Some also offer domestic installations.

Approved Systems Installer

Those companies which have one or more engineers who have attained the CAI / City & Guilds qualification, 3456-1, in the Design and Installation of SMATV & IRS Networks or who have achieved NVQ Level 3 in Signal Reception are listed and classified as CAI Approved Sytems Installers.


Specialist Safety Electrical Installers are competent, as defined in ‘The Electricity at Work Regulations’, and has the required knowledge and skill to make the safety electrical connection associated with touch current hazards on Class II electrical equipment.

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