About us

Unparalleled excellence in every aspect. It’s in our DNA.

For two decades, On Constructions has been Australia’s trusted provider of Medical building services. Discover our expertly crafted projects and exceptional customer service today.

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Clients and partners

The experience you need with the service you deserve.

Proudly serving since 2005, On Constructions Pty Ltd has established itself as a prominent and trusted provider in the construction industry.

We pride ourselves on delivering the highest-quality partnership in end-to-end Medical construction services, streamlined solutions, and high-end consultation and support that our clients – both new and established – have come to rely upon.

You know this as well as us: that operating within the specialist healthcare and medical services space requires a very particular approach and level of understanding. With outstanding relationships and an empathy-fuelled internal culture at our very core, we’re proud to be a boutique-feeling company with big-company imagination, networks and results.

Experience the relief of high-quality, turn-key solutions to all your Medical construction needs across project management, installation, design, specialised construction, refurbishments, and more.

As a Sydney-based, 100% Australian owned-and-managed company, we proudly service NSW and ACT. 

At On Constructions, we’re dedicated to delivering top-quality results and providing you with exceptional customer service. This commitment is unwavering and remains our promise to you, without fail.

Meet our Founder.

On Constructions offers you the ultimate value-add: access to a stellar group of relationship-driven experts led by industry specialist, Andrew O’Neill.

As a trusted, licensed and sophisticated builder with an unblemished record of 30+ years, Andrew has purpose-curated a team of passionate individuals whose diverse experience is unified by a single goal: 100% client satisfaction.

It’s a belief that’s built upon a strong set of values, with a steadfast mission statement to match. Having created and effortlessly maintained a culture of professionalism, strong work ethic and quality-led outcomes, Andrew’s personal value statement of “…don’t work for me, work with me” – has stood the test of time and created an extensive client list that speaks loud-and-clear for itself.

In healthcare, the stakes are high. Why trust anyone else?

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Here’s how we can help.

Our team has extensive expertise in the field of Medical construction services. With our knowledge and experience, the possibilities for collaboration are endless:

  • Managing your construction projects
  • Planning the construction process
  • Designing the construction layout
  • Procuring the necessary materials
  • Executing the construction work
  • Ensuring the completion of the construction
  • Providing maintenance and repair services

The On Constructions difference.

Our team of proven experts brings together over a century of knowledge and expertise. We also utilise highly skilled contractors who have unparalleled industry experience: the key to delivering reliable, competitive and truly comprehensive construction services.

Safety is our utmost concern, and we proudly prioritise safety, quality, and the environment across all elements of our work. As such, our Management Systems are robust and dependable, reflecting our commitment. With our Management Systems ISO-accredited, true professionalism is the core of our business.

Our clients are our top priority. We approach projects with a thoughtful, communication-centred approach, involving customers in decision-making and valuing their opinions.

To exceed expectations, we collaborate with reliable contractors, architects, and user groups. Our highly trained and experienced contractors excel in overcoming complex challenges, ensuring accurate project execution.

We take great pride in providing comprehensive solutions that pay attention to every detail. What sets us apart is our unwavering dedication to delivering outstanding customer care, placing a high value on open, honest communication.

Can’t find what you’re looking for? No problem at all – we’re here to help!

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ON Constructions have consistently provided a superior client driven service and have proven adept at meeting our sometimes unique requirements in delivering high quality healthcare facility solutions.

Jon Gowdy, Director Engineering Services SLHD

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Ready to reach out?

Our team is committed to thoroughly understanding your project and providing you with a wide range of comprehensive options. Contact our friendly, skilled, and highly proficient team today.

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