About JK Williams

Quality, stability and innovative leadership.


JK Williams is a family business founded over 65 years ago built on a solid reputation for market distinction; it has a rich family history together with a strong heritage of quality, stability and innovative leadership.

The dark blue background and bright gold lettering of JK Williams is instantly recognisable on the extensive and modern fleet of civil construction and transport equipment. The company, rich in tradition, and proud of reputation, is a highly respected corporate citizen of the Western Sydney area renowned for delivering innovative solutions in the civil construction sector.

JKW embraces alternative delivery methods to provide the most effective and efficient solutions for each project. We pride ourselves on our commitment to our workforce, safety, environment and our long-standing client relationships built through many years of outstanding quality and an ethical practice delivered with integrity.

While some in the industry might find our attitudes old-fashioned, we believe this is the reason why informed and capable clients place confidence and trust in JKW.

JK Williams History

Founded more than 65 years ago, JK Williams is a family business built on a solid reputation for market distinction, its rich family history and a strong heritage of quality, stability and innovative leadership.

Our growing reputation for excellence, resourcefulness and responsiveness is no accident, it is a natural consequence of the values that have guided our company. Our energetic enthusiasm for what we do and our commitment to our clients, our respected employees and our industry distinguishes us from our competition.

Today, JK Williams employs in excess of 200 people, inclusive of well experienced professionals and a field of construction personnel who are all collectively focused on one thing; that the service provided by each in their own way exceeds the expectations of the client.

Our legacy is that long after we have completed a project, the memory of who we are and what we stand for shall remain.

JK Williams Culture & Values

Innovation and culture management makes JK Williams the employer of choice. Providing flexibility, diversity and employee enrichment programs is as natural to JKW as moving earth, and taking care of our people is as important as looking after our clients – Our people know that.

We believe there is no better proof of a promise for excellence than a project that demonstrates the integrity of its contractor and its people. What we do for a living is not especially unique. What is unique is our commitment to honesty, decency, concern, timeliness and craftsmanship.

Underpinning our past traditions and acting as the drivers for our future direction are the company’s core values;

  • We stand by our work
  • We’re proud of our business
  • We have each other’s backs
  • We always do the right thing
  • We’re loyal and honest
  • We have fun

These values represent where we have been, where we are today and where we want to be in the future.

The Story of Jack Williams

There are certain things that become synonymous with an area. For Penrith, at the foot of the Blue Mountains, it must be JK Williams.


JK Williams prides itself on utilising and sourcing the very latest in technology fit for business purpose. We are not solely focused on what is an aid to constructionany functions of the business.