40 year reputation

We have built an enviable reputation over the past 40 years. For rolling up our sleeves, for finding solutions, for being resourceful, and for doing whatever it takes to get things done.

Large Delivery Capacity

We complete projects across NSW and ACT. Experienced management capabilities and well organised financial and insurance arrangements enable the simultaneous undertaking of multiple projects.


Years in Business


Largest Project


Repeat Clients


Years Average Staff Tenure

Our Team

Ben Duncan
Managing Director

Ben has over 20 years of experience in the construction and property industry. As the Managing Director of CJ Duncan, Ben has been instrumental in building the business into a leading building company.

Ian Richards
General Manager

Ian has over 40 years of experience in the construction industry, across both residential and commercial projects. Ian joined CJ Duncan in 2009 and is now the General Manager. He is involved in all projects by initiating project specific requirements at commencement and monitoring overall project performance throughout the construction and completion phases.

Alan Gallagher
Senior Site Manager


Brent Baxter
Senior Project Manager

Chris Carbury - Site Manager

Chris Carbury
Site Manager

Danny Ng Senior Estimator

Danny Ng
Senior Estimator

Dave Royston Senior Site Manager

Dave Royston
Senior Site Manager

Glenn Felipe Project Manager

Glenn Felipe
Project Manager

James O'Neill Project Manager

James O’Neill
Project Manager

John Naumovski project Manager

John Naumovski
Project Manager

John Park Senior Project Manager

John Park
Senior Project Manager

Marina Aziz Project Manager

Marina Aziz
Project Manager

Michael Drury Estimator

Michael Drury

Prishny Sunnasy Estimating Assitant

Prishny Sunnasy
Estimating Assistant

Richard Joynes Senior Estimator

Richard Joynes
Senior Estimator

Rod Griffiths Project Manager

Rod Griffiths
Project Manager

Stuart Scroeder Senior Site Manager

Stuart Scroeder
Senior Site Manager

Sue Loumbos Project Manager

Sue Loumbos
Project Manager

Our Philosophy

Make it

We’re resourceful and reliable. If there’s a better way to do something, we’ll do what it takes to find it.

When we’re thrown curveballs, we’re proudly known for knuckling down, finding workarounds and solving problems to make things happen and keep projects on schedule. No fuss.


Say what you do and do what you say. We’re big on keeping commitments to our clients, and each other.

If we say we’ll do something, we won’t rest until we do. If there’s a problem we take personal responsibility and we put things right. Straight up.


The job isn’t over until it’s over. We stay focused, determined and professional at every stage of a project to ensure we get the job done right and never take our foot off the pedal.

We’re committed to finish just as strong as we start. Every time.

Our Values

We do what we say

At CJ Duncan, our word is everything. If we say we’ll do something, that’s precisely what we’ll do. From deadlines to budgets to paying contractors on time, what you hear is what you’ll get.

Built on Quality

Our reputation for delivering quality is everything. That’s why we never compromise or cut corners. We’re detail‑focused and use our market-leading skills to deliver projects to the highest possible level every time. We’re only as good as our last project, so it needs to be great.

We’re like a family

We’ve grown a lot. But we’ve never forgotten our family roots. After 40 years we’re still a tight knit business with a candid, people‑first attitude. From our clients and contractors to our in-house team, our success is built on a foundation of strong, personal relationships and respect.

Big results, low fuss

We make things happen. Maximum effort, minimum fuss. We take pride in our ability to knuckle down and get the job done. “Whatever it takes” has always been the attitude that drives us. If there is a smarter or more effective way to do it, we’ll find it.

What our
Clients Say
About Us