Your Whetstone experts for Alarms, CCTV, and Security Systems

A family run company with 37 years of experience serving London

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Alarm, CCTV and Security Systems

Welcome to Third Eye Installation Systems – a leading security company installing alarms and CCTV systems throughout Whetstone, Barnet, North London and Hertfordshire.  It is our job to keep you and your property safe, whether you are a home or business owner. This family-run business has been established since 2006, although our Managing Director has been in the security industry for over 37 years.

From intruder alarm systems to CCTV and door entry, our systems are top of the range and with our IP camera systems, you can view images from anywhere in the world via your phone, laptop or PC.

We are Which? Trusted Traders

Giving you peace of mind. You know you can trust us to get the job done well!

Which? Code of Conduct

24/7 Helpline

Third Eye Installations is proud to offer a 24/7 helpline to all of our customers, so we are there when you need us most!

NSI NACOSS Gold Approved

Having achieved Gold standard via this security accreditation which may be required by your home insurer.

Over 37 Years’ Experience

We are a family-run business . Our Managing Director has worked in the security industry for over 37 years.

Free Quote

Offering a FREE quote to all new installations of alarms, CCTV, door intercoms and access control systems.

Why Choose Third Eye Installation Systems

  • Long established experts in security systems for your Home and Business

  • Family run company

  • Using only the highest quality, award-winning, equipment

  • Our Engineers are CRB checked and fully trained

  • Offering a 24/7 Helpline for all contract holders

  • NSI Gold approved

  • Offering FREE security survey of your property

  • All relevant insurances in place

  • Assessed and approved by Which? Trusted Trader with 100’s of reviews

Latest News

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Google Reviews

Sotiris Vassiliou

“I have used Ollie at Third eye installations for loads of my properties. The customer service and professionalism is second to none. I would highly recommend this company.”

Russell Carter

“Alarm and three cameras Ollie did a great installation with clear instructions for use on phones via the app etc. The after service has been great and ongoing support for silly questions, battery changes etc has been second to none. Would not hesitate to recommend.”

Nick Scott

“We had an urgent issue with an ancient alarm system and Mark and Alex went out of their way to help us sort it out. They came round at v short notice on a weekend, resolved the issue and gave us some great advice for the future. Really great customer service!”

Latest News

Check our blog