About Spy Alarms – CCTV, Intruder Alarms, Fire Alarms – Sevenoaks, Kent

Our History

Spy Alarms is one of the largest privately owned companies installing security systems in the South East. It was started in 1985 by Martin Foster after his own house was burgled and he could not find the system he needed from the available suppliers.

Experienced and competitively priced

We have been in business for over 32 years and have more than 17,500 customers – both domestic and commercial – throughout London, Kent and the Home Counties.

Our experience extends from a major League Football Club and various golf clubs, through factories, office blocks, smaller offices, care homes, schools to all types of residential properties, from small apartments to country estates.

Our goal is to provide competitively priced installations using quality components and the latest technology.

A large proportion of our work comes from repeat customers and we are now keeping the second generation of those first clients safe. Read some of our testimonials.

When you call Spy Alarms, there are no call centres. Between 8.30am and 5.30pm Monday to Thursday and 8.30am to 5pm on Friday, you will be put through to someone who is qualified to understand your needs and one of our surveyors will then visit your property or premises to design a bespoke system to fulfil your requirements.

Out of hours we have an email contact form for new enquiries as well as an emergency number for call outs. Last year, one new customer commented that we were the only security company who answered their telephone between Christmas and New Year.

Security in Safe Hands

When one of our employees is in your home, you can be sure that they are completely trustworthy.

Our personnel undergo a thorough CRB and Police check that goes back for the previous five years. We also follow up three character references for each individual. Your security really is in safe hands.


Could one of our intruder alarm or CCTV systems be used at your property?

From studio apartments to large country estates, small offices to larger office complexes and industrial/ institutional premises, every competitively priced installation utilises the latest technology together with quality components.


We are also NSI Gold approved which means that we are certified by the security industry governing body, the National Security Inspectorate to their highest standard. We have to undergo regular and rigorous checks to ensure that we maintain that standard.

Spy Alarms also consistently gains the Metropolitan Police ‘Alarm Performance Award’ (Gold) and Custodian Gold Shield Award for the lowest number of false alarms recorded

We are also approved suppliers to Kent County Council and the London Borough of Waltham Forest

Having acquired a number of other security companies (such as SwiftSafyre and So Secure), we’ve had to relocate from our original Sevenoaks base. The larger Orpington premises allows us to continue to provide a fast and effective service to new and existing customers alike.


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We will endeavour to respond to you within 2 hours (during usual business hours).

Our accreditations:

NSI Gold AwardSafe Contractor ApprovedBAFE Fire Accreditation - SP203 - Part 1 Modular SchemeMetropolitan Police Gold Award

Insurance Discounts

Please remember that many insurers offer discounts on insurance premiums for premises fitted with industry approved alarm systems such as those above.

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