Since its inception in 2005, On Constructions Pty Ltd has gained a solid reputation within the Medical Building Industry. Based on the values of hard work, attention to detail and relationship building On Constructions reputation has grown steadily over the years leading to a continued stream of referrals from happy and satisfied clients. On Constructions is a Sydney based, Australian owned and managed company. On Constructions offers a vast range of specialist Healthcare and Medical Building Services and expertise in the Greater Sydney, Hawkesbury, Illawarra, Hunter Regions and the ACT.

On Constructions is a well-structured, culture driven group of dedicated team members who stand united to achieve collective goals. We continually endeavour to find ways to improve our services in order to assist our valued clients. Our work ethic and professionalism has been proven to save our clients both time and money. We have a team of professional tradespeople who uphold our core values. We use the latest in building technologies to provide cost effective solutions on time, on budget, every time, as we strive to provide our clients 100% satisfaction.

Our aim is to build a strong partnership with you in order to achieve our shared objective. You can rely on On Constructions to deliver quality service and raise the standard of your projects. Our customers choose us because we meet their construction deadlines, we are reliable and we respect our valued relationships.

The sole director of the company, Andrew O’Neill is a licensed builder and is proud to have held this unblemished license for more than 30 years. On Constructions Pty Ltd has grown significantly whilst still maintaining the family values. Andrew is of the belief, ‘Don’t work for me, Work with me’


On Constructions Pty Ltd is recognised and respected as a forward thinking construction company that delivers a high level of professionalism and quality service in all aspects of the construction industry using ethically sound environmental practices.


To deliver quality construction and service.

  • To meet clients needs and help to make their visions a reality through our passion for the construction industry.
  • To have clear communication lines with clients and our team players to understand and deliver fully on the expectations of our clients.
  • To revolutionise the construction industry with service and integrity.
  • To recruit and maintain an elite level of dedicated team players.
  • To have a positive, open relationship with all members of our team.
  • To continue to grow our outstanding reputation, with prompt service and attention to client needs to secure critical tenders and repeat work.
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