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Trades

Find a builder you can trust

From a second storey to a full knock-down rebuild, a good builder turns your plans into something solid that lasts. We match you with one vetted local builder, not a list to chase.

A builder in hi-vis and a hard hat reviewing house plans on a home extension site

What a builder can do

  • Home extensions and second-storey additions
  • Whole-home and kitchen or bathroom renovations
  • New builds and custom homes
  • Structural changes, removing walls and underpinning
  • Knock-down rebuilds
  • Granny flats and secondary dwellings
  • Structural decks, pergolas and outdoor living

When to call a builder

If your project touches the structure of your home, you want a builder. That covers the big stuff like extensions, second storeys, knock-down rebuilds and new homes, but also jobs people underestimate: removing a load-bearing wall to open up a kitchen, underpinning a shifting foundation, or building a structural deck off the back of the house.

A handyman or a single trade is fine for small, contained work. The moment a job involves footings, framing, multiple trades or council approval, a licensed builder is the person who pulls it all together and stays accountable for the result. They coordinate the chippies, sparkies and plumbers, manage inspections, and make sure the finished job actually meets the building code.

What to check before you hire

Building is one of the trades where doing your homework really matters, because the jobs are big and the cost of getting it wrong is high. Before you sign anything, check:

  • The builder holds a current licence for the type and value of work. Each state runs its own scheme (for example Building Commission NSW, the QBCC in Queensland, the Building and Plumbing Commission in Victoria, or the relevant body in your state), and the value at which a licence becomes compulsory varies. Our licence checks page has the lookup for every state.
  • There is a written contract for anything sizeable, covering scope, price, timeline and variations.
  • They carry the right insurance. Public liability is a must, and for larger residential work most states require home warranty or builders indemnity insurance, which protects you if the builder can’t finish or fix defective work.
  • You can see real references and a couple of completed projects.

It is worth reading up on deposits, contracts and your rights before you commit, so nothing in the paperwork catches you out later. Our broader tradie licences guide explains how licensing works across the trades too.

What it costs

Builder pricing has a huge range, because “a build” can mean a small deck or a brand new four-bedroom home. Most builders price by the project under a written contract rather than by the hour. As a rough guide:

  • New home build: around $1,800–$4,000 per m², build cost only
  • Single-storey extension: around $2,500–$4,500 per m²
  • Second-storey addition: around $3,500–$6,000 per m²
  • Bathroom renovation, mid-range: around $15,000–$35,000
  • Kitchen renovation, mid-range: around $20,000–$45,000
  • Small jobs and variations: around $85–$150 an hour

The things that move the number most are the size and complexity of the job, the level of finish, how tricky the site is (slopes, reactive clay and tight access all add cost) and how much structural work sits behind the pretty bits. These are a guide, not a quote. Our builder cost guide goes into more jobs and how each city compares. Be cautious of a number that looks too good to be true, and never hand over a big deposit before work begins.

How needatradie matches you

Here’s the bit we think makes life easier. Instead of posting your job and fielding a week of sales calls, you tell us what you’re planning and we match you with one vetted local builder. We’ve already checked their licence, insurance, ABN and reviews, so you’re talking to someone who’s the real deal.

One good tradie, not five quotes to wade through. We don’t sell your details around, and it’s free for homeowners. When you’re ready, get a free quote and we’ll line you up with a builder who can actually do the job.

Builders: common questions

Do I always need a licensed builder?
Above a set job value, yes, and the line differs by state. Queensland needs a QBCC licence for building work over $3,300, NSW a contractor licence over $5,000 and Victoria a registered builder over $10,000, while South Australia requires a licence at any value. Anything structural is best left to a licensed builder regardless. Check the licence on your state's register before you sign anything.
How much does a builder cost?
Builders mostly quote by the project rather than the hour. As a rough 2026 guide, a single-storey extension runs about $2,500 to $4,500 per m², a mid-range bathroom renovation $15,000 to $35,000 and a mid-range kitchen renovation $20,000 to $45,000. For small jobs and variations, many builders charge around $85 to $150 an hour. Finishes, site access and structural work move the price most. A guide, not a quote.
Is $400,000 enough to build a house?
It can be, for the build alone. At a rough $1,800 to $4,000 per m², $400,000 covers somewhere between about 100 m² and 220 m² of house, with project homes on flat blocks at the cheaper end. That usually leaves out the land, site works, council and connection fees, the driveway and landscaping, which can add tens of thousands. Get a fixed-price contract that spells out every exclusion.
Do I need a written contract?
For larger jobs, yes, and in most states it is required by law above a set value. A good contract sets out the scope, the price, the timeline and what happens if things change. Never rely on a handshake for a big build. Our guide on deposits, contracts and your rights walks you through what to look for.
How much deposit should I pay?
Deposits are capped in many states and should be a modest percentage, not half the job. Be wary of any builder wanting a large sum before work starts. Payments should be tied to completed stages. There is more detail in our deposits and contracts guide.
How long does a build take?
A deck or pergola might be a week or two, a decent extension a few months, and a new home can run most of a year once approvals are sorted. Weather, councils and material lead times all play a part, so a good builder gives you a realistic timeline up front rather than a rosy one.

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