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
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Fire alarm services Servicing London & Home Counties

With a reputation as one of Greater London's leading providers of fire safety services, AAI Security Systems provide customers throughout the region with a high quality range of fire alarms.

Protecting your home or business from the threat of fire is not only vital for the safety of your staff and visitors, it is also a requirement by law. We supply, install and maintain a wide selection of fire alarms, smoke detectors and emergency lighting systems to ensure that you remain safe and up to code.

Among the options we offer to customers are open protocol systems, constructed from components supplied by leading manufacturers, such as Haes. This allows AAI's experienced team to design a bespoke fire alarm setup for each and every property, making sure you get the one that meets your needs.

NSI Fire Gold accreditation

The benefits of our fire alarm systems include

We are an accreditated 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.

AAI hold the NSI Fire gold standard, the highest of its kind in the industry, ensuring a first rate standard on all fire alarm design and installation. This also stretches to our fire alarm maintenance services, keeping your systems in optimum working order to make sure that safety levels are upheld and that regulations are met.

Whether a one-off repair of a damaged fire alarm system, or a regularly scheduled servicing plan, AAI's experienced team are fully accredited by all relevant industry associations (including BAFE, FSA and NSI) to provide the best aftercare service available.

Get in touch with AAI Security Systems today to find out more about our fire alarm services.

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