Lock Up Industries Logo

About Us

Discover who we are, our expertise in fire door solutions, and our commitment to safety and quality service.

Worker using saw on fire door

At Lock Up Industries, we deliver quality fire door solutions with precision. We understand that no two sites are the same — that’s why we bring the licensing, experience, and flexibility to tailor the right solution.

Lock Up Industries is a proudly Queensland-owned, family-operated business delivering expert services in passive fire protection, fire door compliance, licensed building works, and custom fabrication.

For over 20 years, we’ve built our name on quality, compliance and getting the job done right the first time.

We work across shopping centres, high-rise buildings, government facilities, and high-security sites across South East Queensland, providing fully licensed solutions that meet the highest standards – because when it comes to safety, there are no shortcuts.

With a registered builder license and certified team, we streamline the process from start to finish – from fire door installs to licensed building work and compliance upgrades.

We are fully licensed by the Queensland Building and Construction Commission (QBCC) in:

  • Passive Fire Protection – Fire Doors & Shutters
  • Passive Fire Protection – Fire Collars, Penetrations & Joint Sealing
  • Registered Builder
  • Joinery
  • Structural Metal Fabrication and Erection
  • Sheds, Carports & Garages
  • Carpentry

Our History

Lock Up Industries was founded in 2000 by Stig Gronroos, who built the company on a strong foundation of quality workmanship, compliance expertise, and hands-on service. His belief in doing things right the first time set the standard for the company’s values and client relationships.

Over the years, Lock Up Industries expanded through trusted client relationships, word-of-mouth, and consistently reliable results — supporting a wide range of clients from high-security government institutions to large-scale commercial projects.

Today, the company is led by Caleb Gronroos, who worked alongside Stig for many years. Caleb brings a high level of commitment to quality and extensive hands-on experience, with a clear focus on maintaining Lock Up Industries’ long-standing values.