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Apex Alterations & Additions

What to Expect From Your Home Extension Builder

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Whether you’re a beginner or veteran when it comes to house extensions, the truth is: no two home extension builders are alike.

This can cover a range of competencies from their ability to gather quotes, prepare the scope of works, respond to phone calls and emails, quality of their craftsmanship, their knowledge of Building Codes and heaps more.

While this kind of uncertainty can place unneeded stress on the whole thing, there are ways to ensure you choose the right builder. And this guide is going to show just what to look for in a quality home extension builder.

For starters, here’s what you can expect at the first point of contact…


In order to give you a fair and accurate quote, your builder will want to know as much as possible about your project.

You don’t need to know everything at this stage. But some of the most crucial details they will need are: your ideal type of extension; the size, type and number of rooms, and estimated budget.

Depending on the builder, you may be able to share these details by completing an online form or chatting over the phone.

Fortunately, most builders will be happy to visit you in person at no cost to you. They will take the time to understand the scope of your project, and give you a price estimate based on past projects similar to yours.

Keep in mind, you’ll need to pay a bit upfront for a more detailed measure up and quote. However, the ballpark figure they give should be enough to help you decide whether to proceed or not making it an investment rather than cost.


Most home extension builders have an extended network of designers and draftsman – to ensure that the final design fits your current and future lifestyle needs, is compliant with council codes, and is within your budget.

Your builder will pair you up with a designer/draftsman, who will work closely with you to bring your vision to life. Aside from finalising the layout and floorplan of the extension, other details they will help you finalise include:

  • Type of materials, fittings, and fixtures for the house – This will help your builder give you an accurate quote for the cost of materials
  • Council approval – Each local council has their own unique guidelines in regards to home extensions. A reputable designer will be familiar with the planning policies of your local area. Plus, they can advise you on whether you need Council approval or a Complying Development Application.
  • All relevant insurances for the project and involved tradespeople
  • Preparation and signing of building contract – Before you sign the final contract, you may be asked to sign a Preliminary Contract. This contract allows the builder to detail the project and inspect the site, making sure what is agreed upon in the final contract is true, fair, and reasonable. From there, you will sign a legally binding HIA (Housing Industry Association)


Most home extension projects take several months of ongoing work to complete. For this reason, you want to work with a home extension builder who will ensure the journey is smooth sailing – from start to finish.

What exactly does this mean for you? For starters, responding promptly to phone calls, SMS’s, and emails. Secondly, talking to you in a friendly and polite manner through all communication channels, even during times of stress or uncertainty. And finally, using language that is clear and easy for you to understand.

By working with a good communicator, you will know exactly what to expect at each stage of the process, and you can relax knowing your builder has your personal best interests at heart.


During the entire construction phase, your project manager should oversee the process to ensure the highest quality craftsmanship – while making sure the project is delivered on time and on budget.

They will also ensure the highest quality for all aspects of the job. This includes the installation of plumbing and insulation, framing, plaster, flooring, painting, and heaps more.

This way, you can be confident the final build will not just meet the highest standards – but also exceed your wildest expectations.

Find out how APEX Alterations & Additions can make your current home even better. Get in touch today for a free SITE VISIT.

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