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Concrete spalling explained: what it is and why it spreads

A plain-English guide to concrete cancer, how to spot it early, why it gets worse, and what a proper repair actually involves.

Rope Access Technicians
18 June 20266 min read

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A plain-English guide to concrete cancer, how to spot it early, why it gets worse, and what a proper repair actually involves. On a high-rise façade, the cost of reaching a problem the traditional way often dwarfs the repair itself, which is exactly why rope access changes the equation.

Why it matters

Left unaddressed, small defects compound. Water finds its way in, reinforcement corrodes, and a minor patch becomes a major remedial program. Catching and fixing issues early is almost always the cheaper path.

What to look for

  • Cracking, spalling or rust staining on concrete elements
  • Damp patches, efflorescence or leaks tracking internally
  • Failed sealant joints and perished membranes
  • Loose or damaged façade panels and glazing

How we help

Our directly-employed, IRATA-trained tradespeople access every elevation up close, document what they find against each elevation, and rectify it to specification, with a complete before / during / after record for owners, engineers and insurers.

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