What it really costs to swap tile or old metal for a new Colorbond roof in Sydney in 2026 — and why the cheapest quote is rarely the cheapest roof.
A new Colorbond roof in Sydney runs roughly $90 to $205 per square metre supplied and installed. On a typical single-storey home (140–200m²) that works out around $11,500–$28,750; a larger or two-storey re-roof can reach $40,000 or more. Most average three-bedroom homes land in the low-to-mid $20,000s. Tile-to-Colorbond sits at the higher end, because the old tiles have to come off and go to the tip before the new roof goes on.
It costs more up front than a restoration — you're paying for new steel, new sarking, insulation, and the labour to strip and cart away the old roof. Where people get caught is the quote that leaves things out. New sarking and insulation, batten replacement, ridge and barge capping, gutter condition — a lowball number usually means one of those is billed as 'extra' later. Ours isn't; the quote is the job.
One thing to know up front: if there's any asbestos in the old roof (common in older Sydney homes), safe removal and disposal adds real cost and is non-negotiable — we'll flag it at inspection, never after.
The upside is you spend it once. A properly laid Colorbond roof outlasts the repairs you'd keep paying on an ageing tile roof, and it's lighter on the frame. We'll give you the honest comparison against a restoration so you can see which one actually costs less over ten years.
Figures are general guidance for Sydney and vary with your roof. The only accurate number is a documented on-site quote — which is free.