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From a new home build to a second-storey extension, builders are the trade that quarterbacks the whole job - coordinating concreters, framers, electricians, plumbers, roofers, and finishers. The builders on HelpSorted cover everything from small extensions and renovations to full custom new builds.
In Queensland, any building work over $3,300 requires a QBCC licence - and any structural work, regardless of cost, requires the right class of licence. The listings here include licence claims; the QBCC public register is the authoritative source for verification.
For a standard SE QLD extension (one room added, ~40 sqm), expect $80,000-$180,000 including design, permits, build, and finishes. Second-storey additions run $200,000-$500,000+. Custom new builds in SE QLD typically run $3,000-$5,500 per sqm of internal floor area. Get at least three quotes for any job over $50,000 - pricing variation between builders for the same scope is wider than most people expect.
Frequently asked questions
Do I need a builder for a small extension?
For structural work or anything over $3,300 in QLD, yes - a QBCC-licensed builder is legally required. A handyman can't do structural work.
What's the difference between a builder and a building designer?
Building designers do the plans and permit work. Builders construct from those plans. Many projects use both - a designer to draw, then a builder to build.
How long does a typical SE QLD extension take?
Permits and design: 2-4 months. Construction: 4-8 months for a single-room extension, longer for second storeys. Always plan for one season of delay.
Should I use a fixed-price contract or cost-plus?
Fixed-price is safer for homeowners - the builder carries the risk of cost overruns. Cost-plus is cheaper if the builder is honest and the scope is genuinely uncertain, but riskier without strong oversight.
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