Australia calculator
House Cladding (Siding) Replacement Cost Calculator
Estimate the cost to re-clad your home in Australia. Adjust the exterior wall area (m²), number of storeys, cladding material, and whether the old cladding is removed to see an itemised low–high range in Australian dollars (GST inclusive) for your project.
How this calculator is built
Unit costs with sources
This model cites 2 sources for its line-item cost and regional labour inputs.
Regional labour adjustment
The state table applies local labour indexes only to labour-heavy line items.
Published methodology
The methodology page lists the formula, size drivers, labour model, and source links.
How this estimate is calculated
The model prices 6 project line items from published cost inputs. Quantities are driven by your exterior wall area, number of storeys, cladding material, and whether the old cladding is removed. The selected scope and finish adjust those inputs, then the regional index changes only each line's labour share; material prices remain national.
The itemised midpoint is shown as a ±18% planning range. It is not a contractor quote: access, design choices, permits, availability, and site conditions can move the final price.
Read the full calculation notesEstimate your project
Change the default inputs to match your scope. The breakdown updates by line item.
Cladding Replacement Cost by state: typical ranges
Each range applies that state's labour index to the labour-share line items of the default project; materials stay at national prices. Select a state for its full local breakdown and calculator.
| State | Typical range | Labour index | Permit |
|---|---|---|---|
| Australian Capital Territory | $14,813–$21,316 | 101% | Likely |
| New South Wales | $14,880–$21,413 | 102% | Likely |
| Northern Territory | $14,259–$20,519 | 95% | Likely |
| Queensland | $14,393–$20,712 | 96% | Likely |
| South Australia | $14,292–$20,567 | 95% | Likely |
| Tasmania | $13,436–$19,334 | 85% | Likely |
| Victoria | $14,578–$20,978 | 98% | Likely |
| Western Australia | $15,502–$22,307 | 109% | Likely |
Common questions
How much does it cost to reclad a house in Australia?
Total Roofing & Cladding's 2025/2026 guide puts installed fibre-cement and weatherboard cladding at roughly $80–$140 per square metre, with a mid-grade re-clad near $120/m² GST inclusive, so a standard 150 m² home lands around $18,000 — vinyl and budget fibre cement fall lower, while metal, composite (ACP) and architectural zinc or copper run well above. Use the calculator above for a range matched to your wall area, storeys, and material.
Does the estimate include removing the old cladding?
Yes — toggle 'Remove old cladding' to include tear-off and disposal. Leaving it off assumes new cladding over the existing finish, which is cheaper but is not always advisable, and homes built before the early 1990s should be checked for asbestos before any cladding is disturbed.
Which cladding material should I choose?
Vinyl is the budget choice; fibre cement (such as HardiePlank) and timber weatherboard are the durable mid-grade standard; metal (Colorbond), aluminium composite panels, and architectural zinc or copper sit at the top. Post-2018 fire-safety rules also rule out non-compliant combustible cladding on many buildings. Prices shown are GST inclusive — pick the material that suits your exposure and budget and the calculator scales the estimate accordingly.