8 providers within 25km of Kallangur25km radius
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.
