Built by a QBCC-licensed concreter

CalculatorsRoof Replacement Cost Calculator
Roofing · Free Calculator

Roof Replacement Cost Calculator

Estimate the cost of a full roof replacement including materials, labour, scaffolding, and disposal. Covers Colorbond, tiles, and metal roofing.

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Results

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Pro Tips
  • Colorbond is the most popular roofing material in Australia
  • Roof area is typically 1.2-1.5× the floor area depending on pitch
  • Tile-to-Colorbond conversion often requires structural assessment
  • Check if your council requires a building permit for re-roofing
  • Insulation (R-value) requirements vary by climate zone — check NCC

"I built these calculators because I was sick of doing the maths on a notepad. Now every tradie can use them for free."

— Jarrod A., Founder & QBCC-Licensed Concreter

© 2026 TradieOS — Free trade calculators for Australian tradies.

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