About Us


W.F. O’Brien has 40 years of experience in the security and locksmith industry, developing a reputation as one of New South Wales’ most trusted and respected lock, door and architectural hardware organisations.

From humble beginnings as a major shopfront and glazing company evolving to become master locksmiths in 1972, our team consists of highly trained staff and locksmiths with a knowledge of lock products that’s unrivalled. Our specialties include Bilock (founder distributor) and Master Locksmith Association restricted key systems.

Our door specialist expertise is used by national glass and security companies, with service provided to all door closes, toughened glass, steel and fire doors. Distribution, supply and service of door closes is our speciality, while we are the original distributor and NSW warranty service agent for ‘Dorma Door Controls’.

As a member of the Master Locksmiths Association of Australia, our story is one that combines the unrivalled skill of a leading locksmith company with the traditional values and commitment to excellence our brand was founded on.

Areas We Service

  • Sydney

  • Sydney CBD

  • Glebe

  • Potts Point

  • The Rocks

  • North Sydney

  • St Leonards

  • Waverton

  • Wollstonecraft

  • Mosman

  • Epping

  • Ryde

  • Cammeray

  • Cremorne

  • Cremorne Point

  • McMahons Point

  • Milsons Point

  • Neutral Bay

  • Parramatta

  • Crows Nest

  • Kirribilli

  • Kurraba Point

  • Lavender Bay

Safety and Compliance


Ensuring the safety of all parties is paramount at W.F. O’Brien. A safe working culture means our entire team, from upper management through to apprentices, treat every task with the following values:

  • Safety before profitability
  • Performing all work to the highest standard
  • Treating each home, commercial or industrial space like it was our own

We believe if a job is worth doing, it’s worth doing well.

All W.F. O’Brien employees are trained in safe work practices and issued safe work method statements for every job. Using the tools and training at our disposal, our team recognises safety issues and can find the correct course of action to proceed without risk.


With diverse works taking place across Sydney and NSW, the W.F. O’Brien team is dedicated to sustainability and managing our environmental footprint through standard practices and frameworks at all levels of the company.

Across each department we promote awareness of our actions through training and an ongoing drive to minimise our footprint and move forward with environmental development in mind.

Focusing on going above and beyond compliance standards is how we set ourselves apart, while our environmental management sees us constantly improving and streamlining operations.

Opening and Security Management

At W.F. O’Brien, we are commercial and residential door service, locksmith and access controls specialists.

With a variety of staff from different ages and social backgrounds, we bring a wealth of knowledge across all W.F. O’Brien sales and operations. With many accolades (such as the recent Marrickville Business Achievement Award) from commercial and residential organisations, we have shown time and time again that our client driven mentality underpins everything we do.

Providing opening and security management to local government, large scale commercial properties and a variety of local residential premises, when Sydneysiders think of entrance and access control systems, they immediately think W.F. O’Brien. As founder and warranty agents for Dorma Door Controls (one of Australia’s most popular architectural door hardware brands) there is no doubt that all clients’ results can be achieved with the help of our multi-talented team composed of Sydney locksmiths and door specialists.

Our Accreditations

We pride ourselves on our associations and relationships with organisations that aid us in keeping our staff up to date with cutting edge products and security systems. Our accreditations have given us the opportunity to project manage large scale operations on and off contract.

W.F. O’Brien ensures that compliance and safety come before anything else. Our reporting system allows us to ensure that we strive for “zero harm”. If your organisation requires an individual safety and induction audit, speak to our friendly staff who will organise an expedient audit process to ensure trades staff are onsite in a timely manner.

Our Accreditations Include: