An introduction to Interphone Security Group

As one of the leading security companies in London, Interphone Security Group (ISG) has stood for high quality security products and installation ever since we were founded back in 1962.

We started out as a small company but soon started to grow thanks to the reliable, efficient service we provided. Today many thousands of successful installations later, ISG is a multi-million pound enterprise, one of few specialist security companies in London offering complete security and aerial installation solutions for the commercial sector.

In all our years of operation ISG has never stopped learning. We’ve amassed an unrivalled knowledge of security products and installation expertise to provide our customers with the most efficient cost-effective systems available today.

Our service is centred on three key areas:

• Survey & Design: drawing on decades of experience, we design effective – and cost-effective – security and aerial systems, tailored to your location and objectives
• Technology: we work with the major international manufacturers and experts to access leading-edge hardware and software
• Maintenance: we support our installations with preventative maintenance schedules, guaranteed service levels and 24/7 support

From a single office or factory to warehouses and industrial units - and from commercial residential estates to apartment developments - the full resources of Interphone Security Group are at your disposal.