Trade (e.g. electrician)

Video Call

Send a message to set-up a video call for a free quote

Third Eye Installation Systems

Mrs Claire Formby

9.74(154 Reviews)

Skills & expertise

  • Alarms / Security

Skills & expertise

  • Alarms / Security

Company info

Third Eye Installation Systems was established in 2006 and since then has gone from strength to strength.  Our Managing Director has over 35 years' experience in the security industry and together with our dedicated team of Engineers - including his son - and very helpful office staff - including his wife - are proud to offer a high standard of design and installation of security systems.
As an NSI NACOSS Gold accredited company, which is often a requirement of your insurance company, we can provide a range of high quality security products and services for your home and business.  Our Engineers attend regular training sessions and are security vetted and we strive to maintain the highest standards installation.  We aim to give customer satisfaction at all times.
We offer a wide range of commercial and home security services which include:

  • Intruder Alarms - with home control app, monitoring and Police response if required
  • CCTV Systems - HD high quality
  • Access Control 
  • Door Intercoms - audio or video for your home or business
  • We maintain,upgrade, service all security systems

We offer one year's guarantee on all our installation for parts and labour, meaning if anything goes wrong we return to site to resolve any issues.
After 12 months we offer you a further year's maintenance contract which gives reduced rate for any call outs.
Our Engineers are available 24/7 for emergencies and try and resolve problems remotely to avoid a chargeable call out.
If you would like further information about any of our security services for either your home or business, please call us on: 020 8368 1080 or  [email protected]  


  • Domestic Work
  • Commercial Work
  • Free Estimates
  • 24 Hour Call-out
  • Insurance Work Undertaken
  • Cards Accepted


Works in

All North London postcodes including: Barnet, Cockfosters, Crouch End, Finchley, Hampstead, Highgate, Muswell Hill, Southgate, Whetstone. Also Uxbridge, Harrow and Ilford, Romford and City of London

Vetting Status

Fully Vetted Trade

Company Type
Ltd Company
Checkatrade T&Cs
Interviewed in 2014
Company Status
Insurance Details

Accreditations and Memberships

NSI Gold

Third Eye Installation Systems Limited have just been successfully assessed by NSI NACOSS accreditation for which we have achieved GOLD status.  NSI NACOSS is one of only 2 accreditations for security companies which are acknowledged by insurers.  They have just inspected our procedures and paperwork without any discrepancies and in 6 months’ time they will visit some of the installations we have completed to ensure we are continuing to meet their very high standards.  We have been NSI NACOSS Gold for over 10 years now – of which we are very proud!