A full roof replacement cost in Adelaide typically runs $12,000–$25,000+ for a standard single-storey home, depending on size, material and what the roofer finds once the old roof comes off. It's the single biggest roofing spend most homeowners make — here's what actually drives that number.
More square metres means more material and more labour hours, plain and simple. A modest single-storey home and a large family home with a complex roofline can differ by tens of thousands of dollars for the same material — size alone explains most of the spread you'll see between quotes for “a roof replacement” without more detail attached.
Like-for-like replacement (tile for tile, metal for metal) is generally the cheaper path. Converting between material types — tile to Colorbond, most commonly — costs more, since the old roof has to come off entirely and the frame and battens checked before the new material goes on. That conversion premium is real, but it's often worth it for the weight reduction and lower long-term maintenance metal offers.
As with almost every roofing job, a double-storey home usually needs scaffolding or additional safety equipment that a single-storey job doesn't. That setup cost applies across the whole job, not per square metre, so it has a bigger relative impact on smaller double-storey roofs than larger ones.
Removing old tile or metal roofing and hauling it away is a standard, budgeted part of any replacement quote. If your existing roof is asbestos cement (fibro) — common on Adelaide homes built before the early 1980s — that's a different, licensed process with its own cost structure, not something a standard roofing crew can just include as a line item. See our asbestos roof removal page if that applies to your home.
These figures are a starting point, not your actual quote. Use the calculator below — it factors in your roof's real size, material and condition rather than giving you a generic range.
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