Existing clients: 0208 207 0900

New enquiries: 0207 887 2073

Existing clients: 0208 207 0900

New enquiries: 0207 887 2073

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The very best standards of fire equipment & service We won't be beaten on price or service

  • Exceptional standards of work
  • Your one stop for all fire & security needs
  • Over 10,000 systems installed
  • Aftercare service guaranteed
  • We warrant that, for a like-for-like quotation, we won't be beaten on price
  • We do not use sub-contractors; all our engineers are full time employees of the company

Call us today on 0207 887 2073

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Fire alarm systems Servicing London & Home Counties

Fire safety is not only an ongoing health concern, it's also a legal requirement in any commercial property. AAI Security Systems are London and the Home Counties' most reputable provider of fire alarms, offering a reliable first defence against fire.

Our experts are on hand to carry out fire alarm design and installation to the highest standard in the industry, as demonstrated by our NSI Fire Gold accreditation, creating a bespoke system that meets the specific needs of your premises.

NSI Fire Gold accreditation

The benefits of our fire alarm systems include

We are an accredited fire alarm company »

We have a NSI Fire Gold standard – the industry's highest standard of fire alarm design and installation of systems.

Our latest alarms, detectors and lighting systems offer 24/7 peace of mind »

We offer fully certified systems under the National Security Inspectorate, our alarms may not prevent a fire from starting – however they are proven to GREATLY reduce the risk of injury or loss of life.

With products from leading manufacturers, such as Haes, AAI can provide flexible setups with convenient features, such as wall panels and test key capabilities.

Having a fire alarm system installed is only effective in protecting your premises if it is kept in optimal working condition. AAI offer one-off or regularly scheduled fire alarm servicing across the region, with our team fully accredited by the National Security Inspectorate to ensure the highest quality of workmanship.

For more information about how our fire alarm systems can benefit your home or business, get in touch with AAI Security Systems today.

We cover London & the home counties including the following areas:

Central London

North London


  • Rickmansworth
  • Bushey
  • Watford
  • St.Albans
  • Hemel Hempstead
  • Pottersbar
  • Hatfield
  • Hertford
  • Hoddesden
  • Waltham Abbey


  • Stanmore
  • Edgware
  • Harrow
  • Pinner
  • Ruslip
  • Northwood

West London


  • Harlow
  • Epping
  • Loughton
  • Chigwell
  • Woodford
  • Chelmsford