Roof Replacement in Perth: Costs, Options and What to Expect

When a Perth roof is beyond restoration — severe structural deterioration, extensive tile failure, or persistent leaking that can't be repaired — a full replacement is the only sensible option. Here's what you need to know.

Colorbond vs Tiles — Which Is Right for Perth?

Colorbond steel: Lightweight, extremely durable, and now comes in 22 colours to complement modern and traditional homes. Handles Perth's UV well, doesn't crack, and requires virtually no maintenance. Cost for a standard 3BR home: $18,000–$28,000 fully installed. Concrete tiles: The traditional Perth look, heavier than Colorbond, and require more maintenance (repointing, repainting) over time but have good acoustic insulation. Cost: $20,000–$35,000 for a standard 3BR home. Terracotta tiles: Premium option with excellent longevity (50+ years) but higher cost: $25,000–$45,000+.

Full Replacement Process

A roof replacement typically takes 3–7 days for a standard residential home. The process: remove and dispose of old roofing material, inspect and repair any damaged battens or structural elements, install new underlayment (sarking), install new roofing material, install new gutters and flashing, and final inspection and cleanup.

Choosing a Roofing Contractor

For work over $7,500, your contractor must hold a WA Building Services Board registration. Ask for their registration number, check it on the BSB website, and get at least three quotes. A detailed written quote should specify the roofing product, underlay specification, batten replacement allowance, and warranty terms.