Concrete Cancer & Spalling Repair prices in Sydney
Two current published guides put severe or structural concrete repair in Sydney at A$1,200–2,500+ per square metre, and that is the one band they agree on. On minor work one publishes A$250–600 per square metre and the other A$700–1,500 per square metre.
Call (02) 9072 0403What concrete cancer repair costs in Sydney
| Job | What it covers | Typical range |
|---|---|---|
| Minor work — guide A (Atomic Projects) | Two current published guides give a per-square-metre rate for minor concrete cancer work, and they disagree by about three times on the same description. This is the lower of the two. | A$250–600 |
| Minor work — guide B (awesim) | The same job, the higher published rate. Neither guide is wrong and neither is a quote for your building — the gap between them is the reason a real number follows an inspection. | A$700–1,500 |
| Severe or structural repair | Both guides publish the same band here — the one figure on this page the two sources agree on. | A$1,200–2,500 |
| Extensive beam or column repair | The upper band from the guide that publishes one. Structural elements rather than a balcony edge. | A$2,000–4,000 |
Ranges reflect typical Sydney jobs and vary with access, site conditions and scope. Every figure on this page is a band published in a current Sydney or NSW cost guide, reproduced so you can compare them. None of them is a quote, none is our rate, and neither source states how GST is treated — ask when you get a real number. A firm price comes from a site visit — call (02) 9072 0403 or use the quote form.
What moves the number
Three things, in roughly this order. Access — reaching a third-floor balcony safely means scaffold, a swing stage or rope access, and one published guide puts scaffolding alone above A$15,000 on some jobs. Extent — hollow concrete is found by sounding the surface, and the marked area is almost always larger than what is visible, because corrosion travels along the bar. And whether the water that started it has to be dealt with as well, which turns a concrete repair into a concrete and waterproofing repair.
Why the number comes after the visit
Because the two published guides disagree by about three times on minor work, and both are right about the jobs they are describing. A rate card cannot tell you which of those two jobs your balcony is. Someone sounds the concrete, marks the extent, looks at how the access will be stood and where the water is going, and prices that — which is a different activity from applying a per-square-metre figure to a photograph.
Priced by service
The bands above are for concrete cancer and spalling repair. Strata work carries the same rates for the concrete itself, with access and the Class 2 design requirement priced separately; crack and water-ingress work is usually priced by the membrane and drainage scope rather than by the square metre of concrete.