With Mercury Alarm Services, quality is assured. We are NSI (National Security Inspectorate) Gold Certified, and accredited to the ISO 9001:2015 Quality Management Systems standard. MAS are also approved for health and safety practices by CHAS, SafeContractor and Constructionline. MAS offer a comprehensive, client-tailored service through from alarm systems survey, installation, commissioning and ongoing maintenance. We are also able to service, repair or take-over alarm systems that weren’t fitted by ourselves. Our surveys and quotations are carried out for free, with a no-obligation, no-hassle approach. This provides you with a full security audit for your premises, without paying a penny! Our CCTV systems are installed to current international standards and are tailored to the customer’s specific requirements using the latest technology, designed to comply with BS 50132-7.