Clean or Repaint Commercial Cladding?

When cleaning is genuinely enough

General dirt, algae staining, atmospheric grime and pollution build-up on cladding are almost always addressable through professional cleaning, typically soft washing for painted or coated surfaces to avoid damaging the finish. If the cladding still holds a consistent colour underneath the grime, with no significant flaking, chalking or fading of the coating itself, cleaning should restore most of the original appearance at a fraction of repainting cost.

This applies to a wide range of cladding types, painted metal, coated composite panels, render-based systems, though the specific cleaning method needs to match the material to avoid damage, which is why a professional assessment before quoting matters more here than on most residential jobs.

When repainting is actually the better spend

If the coating itself has failed, visible as chalking that leaves a powdery residue on your hand when wiped, significant colour fading that's uneven and won't clean away, flaking or peeling paint, or corrosion showing through on metal cladding, no amount of cleaning will restore the original appearance, because the problem is the coating, not surface dirt sitting on top of it.

In these cases, cleaning first is still usually worthwhile as prep work, since a properly cleaned surface gives a new coating the best chance of adhering well and lasting, but budgeting for the repaint itself is the honest recommendation rather than repeatedly cleaning a failing coating and being disappointed by diminishing results each time.

The cost comparison in practical terms

Professional cladding cleaning is typically priced per square metre and, depending on access, height and soiling level, generally runs a modest cost relative to the building's overall exterior maintenance budget. Repainting or recoating a commercial cladding system involves surface preparation, primer, multiple coats and typically scaffolding or cherry picker access for anything beyond ground level, which multiplies the cost substantially above cleaning alone.

This cost gap is exactly why it's worth having a professional inspect and give an honest opinion before committing to a full repaint that a thorough clean might have resolved just as well.

Getting an honest assessment

A contractor with genuine cladding cleaning experience should be willing to test-clean a small, inconspicuous section first, showing you directly whether the colour and finish come back convincingly or whether the coating underneath is genuinely too degraded for cleaning alone to fix. This test-patch approach removes the guesswork and gives you real evidence to base a repainting decision on, rather than a sales pitch either way.