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About us

CJ Duncan is a specialist building contractor focused on Remedial & Insurance, Facade Solutions and Fit-out & Refurbishment. We are proud of what we do and believe in the ethos of building strong – meaning we do what we say we’ll do for our clients.

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 in NSW, QLD, and ACT. Experienced management capabilities and well organised financial and insurance arrangements enable the simultaneous undertaking of multiple projects.

Management Team

Ben Duncan

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.

Josh Black

Josh leads the Estimating Teams and the Pre-Construction phase of all projects. Josh is responsible for all aspects associated with the front end of the business including Early Contractor Involvement, Value Management Solutions, Project Tendering and ultimately project conversion.

Ian Richards

Ian has over 30 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 of NSW. He is involved in all projects by initiating project specific requirements at commencement and monitoring overall project performance throughout the construction and completion phases.

Greg Howard

Greg is the General Manager of the Queensland business, overseeing the delivery of all projects for a range of commercial, government, strata, residential and insurance industry related clients. Greg is a licensed builder and has 30 years industry experience across various construction sectors.

Our Philosophy

Make it happen

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.

Play Fair

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.

Deliver Strong

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 People
Say About Us…


ACCREDITATIONS CJ Duncan CM3 Certified LICENSING NSW   ACT    QLD
31220 (31220) 2020729 1200474
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