If you prefer to remain on the street where you live in Melbourne, and love the house you’ve either just bought or have owned for ages but you need to change things, then extensions or renovations could be the answer to your hopes of living in your dream home. If you don’t want to rebuild from scratch but need more space, or if alterations are necessary, then give the Extension Factory in Melbourne a call.

Since 1979, the highly skilled builders at the Extension Factory have used their professional skill and expertise to deliver luxurious, high-quality renovations and builds on time and on budget.

The Extension Factory has forged a robust reputation as Melbourne’s top ranking extension and renovationspecialists. We are a fully licensed home improvement company with a reputation for quality, great customer service and the employment of highly skilled, well trained and experienced builders and staff.


The Extension Factory is the trusted name in extensions and renovations throughout the Melbourne suburbs.


No Compromise on Quality – All Inclusive Price – Built On Time and On Budget – No Job Too BIG! Over 37 Years of Experience


The Extension Factory can supply you with a kitchen extension, a guest or family room, or discuss your ideas for whatever you need in the way of home improvements or renovation.

We can arrange for you to meet our design consultant either in our Melbourne office or in the comfort of your own home to discuss your dream extension or renovation.

We’ll have a chat about your renovation or alteration needs and incorporate your home improvement ideas and plans into our design. We’ll also discuss a cost estimate according to your budget and needs. Your Project Manager will meet you onsite to arrange the start of your project in Melbourne.


12 months No Interest and No Repayments* (conditions apply) – FREE No Obligation Design & Quote –  You receive a 3D Design of the Extension/Renovation

Quality and Experienced Builders, Tradespeople and Staff – 10 year warranty

Click to RevealClick to Reveal
Click to RevealClick to Reveal


Total home transformations

We specialise in complete renovations that transform your tired old house into the luxurious home of your dreams. Over 8000 builds since 1979 has proven time and time again that clients who renovate their entire home rather than renovating a few rooms, altering just the interior or only updating the exterior are much happier and enjoy living in their new and improved home.

Many families are living in their 2nd, 3rd and even 4th Extension Factory home. Book a consultation with one of our home renovation experts and they will work with you to bring your ideas to life.

Click to RevealClick to Reveal

The Extension Factory offers a  fixed completion date, and our quality home extensions and renovationsinclude a 10-year structural guarantee and warranty upon completion.

We are Australia’s  biggest home improvement company, developed on a model of creative and practical design, so expect top quality customer service, product and speedy work from the Extension Factory in Melbourne. We are builders and designers of all kinds of home improvements, renovations and extensions. The size of our company means our greater Melbourne metro area clients benefit from our competitive pricing due to our buying power.

Whether your Melbourne home is Federation or contemporary, a two-storey mansion or a ground floor flat of an apartment block, our quality renovation home improvement builders and project managers will make sure your dream home comes true sooner than you think.

Call us for a free no-obligation consultation.


We have completed thousands of home transformations throughout Melbourne.
You’ve probably seen our work in these areas and many more.

Glen Waverley
Mt Waverley
Wheelers Hill
Box Hill
Surrey Hills
Narre Warren