We offer professional commercial developments from outside to inside fit outs we do it all.


We love bringing the old back to the new, Grant specialises in home renovations and making your dreams become a reality.


We are your local family owned builder

Grant and Amanda Irwin proudly established GI Builders in 2014 with fourteen years’ experience in the building and construction trade.

GI Builders are a local, family owned business who focus on providing top quality workmanship combined with stress free, personalised service. They have a wealth of building expertise, and a team of reliable and high quality tradesman with combined experience and passion for the construction industry in Bundaberg.

If you want the very best service, communication and attention to detail from your builder, as well as a builder who can work with you to achieve the best outcome for your budget, you must talk to GI Builders.


At GI Builders, we specialise in building beautiful custom new homes that are tailored to our client’s needs, lifestyle and budgets. From the initial designing to the final handover, we aim on making the process hassle free and smooth, with our professional team informing and involving you the whole way.


We love bringing the old back to the new, Grant specialises in home renovations and making your dreams become a reality.


We offer professional commercial developments from Outside to inside fit outs we do it all.


Construction of new homes






Office Fitouts / Refurbishments

And much more!

GI Builders is a fully licensed builder.

We encourage you to view our project portfolio for some examples of our previous work, and our client testimonials to see what our clients have to say about our work.

What we offer

Hands on, personalised service. We communicate with you every step of the way, so that there is no stress and no hassle. Assistance in creating, developing and choosing designs and materials for interior and exterior. Work with a local experienced draftsman to develop unique plans and designs that will suit your lifestyle and budget. We listen to you, and will tailor your home to your family’s needs


Tom & Sarah

Professional and trustworthy builder who delivers quality homes.

When living away from where our new house was first constructed, meant we had to have complete trust in the builder. With GI Builders we had this peace of mind from start to finish. Grant and the whole team at GI builders showed great attention to detail and delivered our perfect house in just under the allocated time frame. As we were not present for most of the build, Grant maintained constant communication and kept us update at all times. Grant also allocated more than enough for the PC items, which left us with a little unexpected extra money to spend on additional items around the house. We highly recommend GI Builders as a professional and trustworthy builder who delivers quality homes.”

Zach & Jackie

Grant and the team at GI Builders made building our first home an easy and stress free experience.

We chose GI Builders because we were impressed with the attention to detail, quality of workmanship and professionalism demonstrated. From the very first time we discussed the idea of building, right until the day the keys were handed over, we couldn’t have been happier with the total service we were provided with. What makes GI Builders a step above the rest, other then the absolute quality of their work, was the communication from the builder ensuring that we were informed every step of the way. GI Builders has a very unique and individual design style that will guarantee your house is a stand out from the rest. We could not be happier with our new home or with GI Builders, a truly professional and honest builder. We highly recommend Grant and his team to anyone considering to build or renovate.


I have had some bad experiences with builders in the past and when looking to get some renovations done to my house I was a little hesitant. This was until I got put onto Grant and he constructed our back patio. We were so pleased with his work and quality that we then continued to get our kitchen fully renovated and a large room extension to the house. We could not be happier with our end products and the service that Grant provided. We have no hesitation now in getting Grant back to do more work to our house.

Gary & Deb

We would like to take this opportunity to say how pleased and overwhelmed we are with the end product of our extension to our house.

Grant was exceptional at ensuring the work was carried out in an effective and professional manner always communicating with us about what was going on and the stage the work was at. The high quality and detail to work was more than what we could ask for and the prompt work also had us utilising this fantastic area before we had thought possible.

We are grateful for Grants ideas and knowledge in the building industry, that allowed our extension to be even more perfect than first thought.


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