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DIY vs Professional Damp Proofing — Which Should You Choose?

An honest breakdown of the cost, time, skill and risk involved in DIY damp proofing vs hiring a contractor.

26 May 2026 4 min read

We sell both DIY damp proofing kits and a full professional damp proofing service. People often ask which one we actually recommend — the answer depends on three things: how much wall you have, how confident you are with a paint roller, and how badly you want it done this weekend.

When DIY makes sense

  • Single room or up to 30m² of affected wall.
  • You can clear furniture and access the wall safely.
  • You're comfortable mixing and applying with a roller or brush.
  • Budget-sensitive — you'll save roughly 60–70% versus a contractor.

When to call us in

  • Multiple rooms, double-storey, or external walls above 2.5m.
  • Heavy salt damage that needs replastering after treatment.
  • Combined damp + mould remediation (we handle both in one visit).
  • You want the 10-year workmanship guarantee.

Cost comparison

A typical 25m² lounge wall: DIY Xtreme 5L kit ≈ R1,500 + your weekend. Professional ≈ R3,750 + done in a day with guarantee. Either way you're paying for the same active chemistry — the difference is labour and warranty.

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