About us
Founded by Darren O'Mahony and James Horgan in 2015. We pride ourselves on building strong client relationships.

- 10+
- Years in business
- 17
- Directly employed staff
- 100+
- Projects delivered
- 30+
- Items of owned plant
Our story
D&J's started as a family plant hire business. In 2015 Darren O'Mahony and James Horgan set up D&J's Civil Construction to take on full civil packages, and we've grown job by job since.
Today we're a team of 17 directly employed staff with more than 30 items of our own plant, working from our yard in Ormeau for developers, councils and head contractors across South East Queensland and Northern NSW. We've delivered more than 100 projects, from residential subdivisions to sewer, water and drainage packages, and much of our work comes from clients who've used us before.
We're still owner-operated. Our directors are on site, so you deal directly with the people who make the decisions, and the values we started with as a family business still guide every job: safety, quality, and timely, honest, reliable service.
What makes us different
- 01
Owner-operated since 2015
- 02
Directors on site, with direct access to decision makers
- 03
Strong repeat-client and supplier relationships
- 04
Our own crews and our own plant on every job
Our commitment
Winning repeat work is how we know we're doing the job properly. Here's what that takes.
To our clients
Honest pricing, realistic programs and regular updates. We agree time frames up front and tell you early if anything changes.
To safety
Every operator inducted and assessed before they start, daily prestarts on every site, and an external safety professional auditing our sites.
To quality
Work checked at hold points as it goes in, tested before it's covered, and handed over with full as-constructed records.
To our people
Our crews are directly employed, not labour hire, so you get the same experienced team from the first day to handover.
To the environment
Erosion and sediment controls in before ground is broken, and dewatering run to permit conditions.
Have a package to price?
Send us the drawings.
