Established in 2004, obtaining NSI Systems silver accreditation in 2005, we on the lists of Local Authorities, Insurance Companies, Police and the NHS throughout South Wales.

We are proud of our impeccable reputation for quality and service; a reputation built through hard work, development, innovation, and investment in staff and new technology, we are driven by a desire to provide the best possible service for our clients. Our customer base is varied, from the smallest residential property and start up businesses to government contracts, you can be assured of a personalised service and expert advice throughout.


Nicola Davies - Administrator

Gareth O'Brien

Nicola manages all office enquiries, including organising maintenances and account queries. Previously employed by F.A.B Security, she has worked in the industry for 20 years.

Gareth O'Brien

Gareth O'Brien

Gareth has worked in the Security Industry since 1998 and co-founded O'Brien Security Systems in 2004.

Being a small company, Gareth has a hands-on approach to business, not only managing the day-to-day running of the company.

He also carries out installations, quality assurance checks and deals with maintenances to ensure that he can be confident that the service O'Brien Security Systems provides is second to none.


Derek O'Brien

Gareth O'Brien

Derek owned and ran F.A.B Security Systems for 30 years and co-founded O'Brien Security Systems with his son, Gareth.

Being in the security business for over 40 years, Derek has written numerous articles for ‘The Security Installer’ and was chairman of the National Security Training Board.

Derek retired in August 2013, but is still involved as an advisor to the Company.

Rhian O'Brien - Administrator

Gareth O'Brien

Rhian manages all advertising, and assists Nicola in dealing with office enquiries.


Contact us on the form below
At O’Brien Security Systems, we take your privacy seriously. We will only use your personal information to administer your account, and to provide you with the products and services that you have requested from us
Name   Intruder Alarms Access Control
Company   Monitoring CCTV
Telephone   How did you hear of us?
Email   By clicking 'Submit' you consent to us contacting you

O'Brien Security Systems Limited
46 Lon Mafon, Sketty, Swansea SA2 9ER
01792 299992 |

security services burglar alarm systems cctv   mastercard visa debit

Website by SiGGA Design Ltd