Welcome to Thorndon Security

Welcome to the new THORNDON SECURITY website. Thorndon Security was formed in 1982 and has been successfully operating since then.  We offer a wide range of security services throughout Essex, London and the home counties including Security in Chelmsford, Brentwood, Braintree, Billericay, Stock and surrounding areas.  

As a company we specialise in Intruder alarms, CCTV and Fire alarm systems. Thorndon Security provides services for commercial and domestic/home use. If you are looking to secure your home or business by adding CCTV, Intruder Alarms or Fire Alarms please contact Thorndon Security to find out how we can help.

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CCTV
CCTV Systems Thorndon Security have nearly 30 years of experience supplying and professionally installing premium CCTV systems. Our CCTV systems can be installed both externally and internally and are a vital element of security in a lot of homes and businesses. We can supply standard systems or full...

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Fire Alarm
Smoke and fire detection systems in Chelmsford, Essex Thorndon Security understand the importance of the security work we undertake and take our job very seriously. Our skilled and professional engineers are highly experienced in selecting the correct fire and smoke detection systems for your home...

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Intruder Alarms
Intruder alarms for home and business security in Chelmsford, Essex Intruder alarms are the most common form of security and our home security specialists are experts in the installation and repair of them. Here at Thorndon Security our expert engineers are happy to have a consultation with you to...

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Who Are Thorndon Security?

Thorndon Security was formed in 1982 and has been successfully operating since then. We first became a NSCIA Certificated Company in 1987, which was the forerunner of the NSI. We obtained the ISO 9002 Quality Assurance Certificate in 1993 and we are now a SSAIB Certified Installer. We offer our services in the South East of England covering London and all the Home Counties. As a company we pride ourselves on our workmanship and being able to meet the needs of our clients.

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