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About

unleashing our clients’ potential by maximising the innovation.

We have the highest level residential builders’ license in Victoria with the VBA and is valid throughout Australia and its territories. It is an Unlimited License Domestic Builder Company number CDB-U64991 . All our tradespeople are fully qualified or supervised apprentices

Our highly experienced Design Consultant will discuss your goals, answer your questions and provide an honest appraisal of how your ideas and wishes can be turned into a functional and attractive extension. Your family's lifestyle should determine what kind of extension you construct, and your budget should be within reach.

We are professional, trustworthy and dependable, we keep to our written and verbal commitments.

Building the infrastructure that empower people.

As Melbourne’s extension specialists, it’s our job to turn your house into a home. We start every job by focusing on the foundation — you. Tell us about yourself. Tell us about your family, hobbies and interests. Tell us what you need, but most importantly, tell us what you’ve always wanted.

You can’t always build your dream home from scratch. Maybe you’re already in love with what you have — the memories within your four walls and the community outside of them. The problem is those walls just aren’t quite big enough anymore.

You will have your own Project Supervisor who will keep you up to date with your build, renovation or development as often as you have requested. We want to do all we can to ensure you enjoy the journey as much as we do.

Homes are meant to be lived in. We keep this at the core of our projects — it's what makes us one of Melbourne’s best home extension builders.

About us

At DEMK Constructions the reason why we have been house builders, renovation builders and property development builders for over 21 years is because of our quality workmanship and first-class customer service.

At DEMK Constructions the reason why we have been house builders, renovation builders and property development builders for over 21 years is because of our quality workmanship and first-class customer service.

Here are just a few examples of how this will benefit you and the experience you have with your home build, renovation or property development:

– Our Building and Engineering qualifications and experience means that if there is an unforeseen situation or problem, we can help you find the best solution. This is a common comment about DEMK: ‘if you are stuck or in trouble with your build, call DEMK’. Building can be a maze of problems, but not if you have DEMK as your builders.

– Your free no-obligation consultation means that we can provide you with ideas and options you probably have not considered. We then follow that up with a free, written estimate, once you are satisfied of with our estimate and scope is detailed, we can then work out a Fixed price quote. So you have little to lose and a lot to gain from a phone call to us.

Trusted by global brands
Trusted experience.

You will have your own Project Supervisor who will keep you up to date with your build

You will have your own Project Supervisor who will keep you up to date with your build, renovation or development as often as you have requested. We want to do all we can to ensure you enjoy the journey as much as we do.

We provide an extremely high level of finish to all the work that we complete, an impeccable clean-up and a prompt and dependable after-sales service.

Our consistent and determined level of first-class customer service is what makes us stand out from other local builders. Combine that with our 21 years of experience in the industry, our qualifications, our team, and that we only use quality materials and suppliers all mean that you can have peace of mind that your build or renovation or property development is in good hands when you work with DEMK.