2026 estimate

Roof Replacement Cost in Western Australia

It costs an estimated A$16,700–A$31,200 to replace a typical 200 m² roof with Colorbond steel in Western Australia, 4% above Australia overall. Average full-time weekly earnings in Western Australia are A$2,227/week, 7% above the Australian average.

Measure your roof areaMeasure your pitch
Typical 200 m² roofA$16,700–A$31,200
vs Australia overall+4%
Average full-time weekly earningsA$2,227/week
Cost rank of 82nd

Roof replacement cost in Western Australia by material

MaterialInstalled, per m²200 m² roof
Colorbond steelA$83–A$156A$16,700–A$31,200
Concrete tilesA$125–A$208A$25,000–A$41,700
Terracotta tilesA$167–A$292A$33,300–A$58,300

Estimated ranges, AUD, including GST. Include tear-off of one existing layer where the source does.

Cost by roof size in Western Australia

Roof sizeColorbond steel
150 m² roofA$12,500–A$23,400
200 m² roofA$16,700–A$31,200
250 m² roofA$20,800–A$39,100

Roof size is the sloped surface, not the floor area. A steeper pitch means more roof for the same house.

What re-roofing costs in Perth

Tradie Verify reports a mid-range Colorbond re-roof of a 200 m² home in Perth at A$20,000–A$32,000 (Feb 2026). Regional areas are typically 10–15% cheaper than the capital.

What drives roofing prices in Western Australia

Labour is the largest part of a re-roof, so local pay matters: Western Australia ranks 2nd of 8 states and territories on average full-time weekly earnings.

For any single house, size and shape matter more: every extra square of roof adds materials and labour, hips and valleys add cutting and waste, and steep pitches need staging and fall protection. Tearing off more than one old layer, replacing rotten decking, and difficult access all add to the quote.

4/12 pitch6/12 pitch8/12 pitch10/12 pitch12/12 pitch

Frequently asked questions

How much does a roof replacement cost in Western Australia?

It costs an estimated A$16,700–A$31,200 to replace a typical 200 m² roof with Colorbond steel in Western Australia, 4% above Australia overall. Average full-time weekly earnings in Western Australia are A$2,227/week, 7% above the Australian average. Prices are AUD, including GST.

How much does a concrete tiles roof cost in Western Australia?

Concrete tiles costs an estimated A$125–A$208 per m² installed in Western Australia, or A$25,000–A$41,700 for a 200 m² roof.

Why do roofing prices in Western Australia differ from other states and territories?

Labour is roughly 60% of a re-roof, so local pay drives most of the difference. Western Australia ranks 2nd of 8 states and territories for average full-time weekly earnings (A$2,227/week). Roof size, pitch, tear-off, access and material choice still matter more than location for any single job.

Does roof pitch change the cost?

Yes, in two ways. A steeper roof has more surface area for the same footprint (a 6/12 roof is 11.8% larger than its footprint, a 12/12 roof 41.4% larger), and roofs steeper than about 7/12 need staging and fall protection, which most contractors price as a steep-slope surcharge.

How these estimates work

Estimates start from published Australia installed-price ranges, which describe Australia overall. Labour is about 60% of a re-roof, so each state's range is multiplied by 0.4 + 0.6 × (local average full-time weekly earnings ÷ the Australia figure). Totals are rounded to the nearest 100. Prices are AUD, including GST. They are estimates for budgeting, not quotes: tear-off layers, decking repairs, access, permits and roof complexity can move a real quote well outside the range.