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About High Grade Mechanical

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About HGM


High Grade Mechanical is an employer of choice with an award winning reputation, providing high grade people and delivering high grade results.

HGM was established in 2011 by an industry-recognised heavy diesel mechanic, Mark Olszewski, who is still on the tools today. Together with his wife Jennie, they continue to support and facilitate growth within HGM.

Mark and Jennie believe it is critical to remember where and how the business started. From humble beginnings, they continue to demonstrate what was important then is what is important today, and that is:

  • Treating the HGM team as family.
  • Taking pride in everything we do.
  • Doing what we say we will.
  • Doing the right thing.
  • Having mutual respect.

The essence of HGM is reflected in the Values. We are about caring for everyone because working at HGM is about making the impersonal personal and building a sustainable future for all.

HGM specialises in rostered workforce, field service, and maintenance workshop solutions and service the civil and mining industries throughout Western Australia.

We adopt a ‘quality rather than quantity’ approach to everything they do.

Clients engage with us as we have paved the way in delivering high grade maintenance service solutions.

HGM’s Purpose

Our Team.
Your Success.

HGM’s Vision

HGM is an employer of choice with an award-winning reputation, providing
high grade people
and delivering high grade results.


HGM’s Values

You & Your Family Come First

Above all else, we understand the importance of family because we are family.

Your safety and wellbeing at work, and your life outside of work, are equally significant. We strive for balance and aim to make it all work for you.

We're Down to Earth

In everything we do, we keep in mind our humble beginnings.

You can depend on HGM. We’re real, we’re here for one another, and we do what we say we’re going to do!

We Get The Job Done

Sure, we could have said we are reliable, but we’d rather get straight to the point.

We will find a solution and get the job done.

The Kwan - We're The Whole Package

What’s the Kwan? Like us, it’s a bit left field!

To us, the Kwan is mutual respect. It’s about taking care of one another and our clients. We make the impersonal personal, enjoy ourselves, and work towards a sustainable future for all of us – we are the whole package.