Real Numbers.
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Three fields. Thirty seconds. A real ballpark range built from 2026 Australian supplier pricing — Lysaght, BlueScope, Bristile, Monier — and our crew rates.
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Fill the three fields on the left. Estimate appears here. No email required, no phone capture, no follow-up calls — this is a real ballpark.
What Goes Into
The Range.
Area Estimate
We assume a typical 200m² single-storey AU home for the calculator. Real quotes use your floor plan and a drone measurement — usually within 5% of the calculator.
Material × m²
Each material has a documented per-m² range from current supplier pricing — Lysaght, BlueScope, Monier, Bristile, La Escandella. Updated monthly. The range covers profile choice and accessory variation.
Sub-Trade & Disposal
Strip and dispose costs (skip bins, transport, asbestos if applicable), sarking and insulation upgrade, custom flashings fabricated on-site. The mid-to-high end of the range covers these.
The Things That Move The Quote.
- /Roof pitch. Steeper than 30° adds harness work and slows the crew.
- /Two-storey access. Scaffold or harness towers add $1,500-$4,000.
- /Asbestos. Old garage or shed roofs sometimes have it — licensed removal is $80-$120/m² on top.
- /Cyclone region. If you're north of Bundaberg, Region C spec adds 15-25%.
- /Structural reinforcement. Tile-to-Colorbond is usually fine; Colorbond-to-tile or terracotta needs a structural check.
- /Solar. If you have panels, they need removal and refit — adds $1,500-$3,000.
- /Heritage overlay. Council approval can add 4-8 weeks but rarely changes the price.
- /Skylights, whirlybirds, ridge vents. Each adds $200-$1,500 depending on type.
Lock The Real Quote.
The calculator gives you the range. A free inspection gives you a fixed price — itemised, no hidden extras.
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