CDI Services are a security systems installation company based in Epping, Essex. CDI Services provide service including specification, design, installation and support of intruder alarms, fire alarms, access systems, door entry systems, CCTV, TV & satellite, IRS & MATV, telephone data netwroks & door/gate automation systems for home or business, domestic or commercial premises.

Centra are an Electronic Security & FIA Fire Alarm Trained Systems Installers founded in 1990. Centra are experienced in the planning, installation and maintenance of Access Control, CCTV and all types of intrusion detection sensors and devices.

Founded on first class customer service and support - with decades of experience in fire and security systems for some of the world’s most demanding applications - Paragon Security is a UK-based specialist solutions provider. They support clients around the world with specialist fire and security products and services. The company is founded on customer support second-to-none, built on providing fire and security systems for diverse applications.