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We are committed to providing high quality security systems at the lowest possible price with branches in Caterham, Surrey and Croydon, South London. Allied Security is an approved SSAIB UKAS company and our systems are recognised and accepted by the Police and Insurance Companies. Allied Security is one of the main suppliers of wired and wire-free alarm systems in the local area, we also provide emergency repairs and disconnection’s, maintenance and servicing to most makes and models of existing security systems.