Melbourne home extension specialist

At Duncan Thompson Extensions, we are extremely passionate about our quality workmanship and design. Not only this, but the journey our clients participate in. We hope that they feel comfortable and secure at every step. It is because of our quality work, client care and attention to detail, that we have become one of the most well regarded choices for home renovations and extensions in the Greater Melbourne area. Take a look below at just some of the reasons why we have become so well regarded in the home extension industry

Our recognition

Don’t just take our word for it, Duncan Thompson Extensions has the accolades and praises of many bodies overlooking the Victorian and Australian building industry. We are a registered business with the HIA (Housing Industry Association, the peak national industry association for the residential construction and home building, renovation and development industry in Australia.) Through the HIA, our processes are established under the ‘GreenSmart’ initiative, a program established by HIA to promote affordable and durable environmental solutions in residential design and construction.

We are also registered with the Master Builders Association of Victoria. This association aims to raise standards across the home building, renovation and extension industry, serving the public by encouraging only the best work standards by their member businesses.

Our team

Our team have been carefully selected, to make sure that we only work with the best in the Melbourne building industry. Chris French, our Managing Director, is a second-generation home extension builder, with almost 35 years experience in the industry. Through beginning his career as an apprentice, he understands every aspect of your home renovation. Our architect, Jim, has been working in the industry since 1990, and for the last 15 years has worked exclusively in home/residential design.
Bryn started with Duncan Thompson Extensions in 2005, working hard to learn all aspects of the design process. His valuable experience on site, as well as his diploma of Building Design and Technology at RMIT, makes him an important part of the team.

Concept to completion

At Duncan Thompson Extensions the motto we live by is ‘from concept to completion’. This means that throughout the entire home renovation journey, we are there every step of the way. From your initial meeting with our team, designing, contracts, build and lock up, we are there to guide you. We always aim to be open and honest with our clients and involve them in the process, ensuring they have a good understanding of the work they’ve commissioned. This way, right through to the completion of your home renovation or extension, you feel supported.


Home warranties are an important part of your home renovation or extension, and at Duncan Thompson we take this very seriously. We go above and beyond to ensure that our clients feel completely secure in the work that is taking place on their property. Our extended warranties go beyond regulatory requirements and our professionally managed leading edge quality constructions will exceed your expectations.