Duncan Thompson is a leading Melbourne Home Extension Builder. We're passionate about quality workmanship and beautiful design.

Because we both design and build house extensions, we offer a service that is complete from concept to completion, and also delivers true value for money.

What makes us one of Melbourne's very best home extension builders?

  1. Years of Experience

    We have over thirty years experience of working with families to find the best and most attractive options for their homes.

  2. Fast and Accurate Quoting

    Get your extension started sooner. We will provide you with an accurate quote and concept designs within weeks of our first meeting.

  3. Our People

    We know and trust that our designers and tradespeople are capable of a high standard of workmanship.

  4. Quality Comes First

    We don't cut corners on materials or workmanship. We only source materials from leading suppliers, recognised to meet industry standards.

  5. Value for Money

    We'll work hard to find the best solutions for your home at the best value.

  6. Concept to Completion

    A fully managed, collaborative approach between you and our design and building teams will ensure a smoother process with minimal disruption to your family's busy life.

Talk to us today to find out how Duncan Thompson can transform your vision into your new home.

House Extension Enquiries

Extension details

Getting started

Planning your home extension doesn't have to be daunting. Let us take some of the stress away. We offer a free, no obligation design consultation.

A senior member of our design team will be happy to talk to you and arrange a design consultation. We'll listen to your needs and discuss the best options for your family's lifestyle and budget.

Phone us on (03) 9836 8655 today to arrange your obligation-free Design Consultation across Melbourne's inner Eastern and bayside suburbs including Camberwell, Glen Iris, Brighton East, Surrey Hills, Balwyn, Hawthorn East, Brighton, Kew, Balwyn North, Caufield North and others!