ThermoBuild homes are more than just the sum of their parts.
We combine tried and tested building physics, cutting edge materials and carefully curated detailing to create homes that perform their occupants day in day out. As disciples of the environment, our talented team exercise acute attention to detail to achieve both aesthetic, comfortable, healthy living spaces.
Our Mission
At ThermoBuild, we are driven by a mission to build sustainable, energy-efficient homes that promote health and well-being while exceeding client expectations. As a certified Passive House builder, we aim to:
- Lead the industry in eco-friendly construction across Southwest Victoria.
- Set new standards for quality, sustainability, and client satisfaction.
- Educate and inspire communities on the benefits of sustainable living.


Our Founder
David Stewart is the founder and Managing Director of ThermoBuild whose passion for comfortable and efficient buildings was ignited by curiousity to explore how the spaces we live in can be built to the greatest benefit of both their occupants and the environment.
David's journey began with a hands-on carpentry career and evolved through his drive to understand the innovations and construction techniques that are at the forefront of the best low energy, comfortable buildings. A transformative year in Tirol, Austria, further cemented David's knoweldge and understanding of cutting-edge Passive House techniques, and he is dedicated to sharing his values and ethos as he constructs high performing buildings with low VOC and local materials at every opportunity.
Servicing the Colac Otway surf coast and Geelong region, we thrive in project teams and collaborate exceptionally with all stakeholders.
"Equipped with the tools and knowledge to practice what we preach, we strive for global best practice, and to collaborate with likeminded clients and stakeholders to move forward together."