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Mould & Damp Inspection in Wynberg
Mould in Wynberg is usually rising damp through absent or bridged DPC. A diagnostic inspection establishes which of the three damp mechanisms is at work before you spend anything, because the repairs are completely different and the wrong one is the most common expensive mistake. Expect R1,800 to R4,500 and a written report within 48 hours.
What causes mould in Wynberg
Rising damp through absent or bridged DPC. This is one of the few parts of South Africa where genuine rising damp is common rather than over-diagnosed. Observatory, Woodstock and Salt River were largely built before damp-proof courses were standard, and where one exists, later paving, a screed or a raised bed has usually bridged it. Heavy tree cover keeps walls shaded and slow to dry, so damp that would clear elsewhere persists all winter.
Heritage-grade stock in the village area where original fabric and modern alterations meet badly, particularly at floor level.
How to tell which type you have
A tide mark up to about a metre with salt crystals at the top edge, worse in winter, and often borer in Oregon pine floors above a damp subfloor.
- Rising damp
- Reads high at the base of the wall and falls with height. Stops at a consistent level, usually with salt crystals at the tide line.
- Penetrating damp
- A patch unrelated to floor level that darkens during and after rain and dries between.
- Condensation
- High surface moisture with a comparatively dry wall behind it. Worst in the coldest corners, behind furniture and around windows — and it occurs in buildings that are not leaking at all.
The pattern is the diagnosis. An inspector takes moisture readings at three heights plus humidity and surface temperature, because each mechanism leaves a different signature — and a thermal camera on its own does not see moisture, only temperature difference.
What it costs to put right in Wynberg
If it is truly rising damp, chemical DPC injection at R900 to R1,800 per linear metre — but the replastering afterwards is the larger bill. If it is a bridged DPC, lowering the external ground level costs a fraction of that and fixes it properly.
| Item | Indicative range |
|---|---|
| Mould & damp diagnostic inspection | R1,800 – R4,500 |
| Laboratory sample (per sample) | R900 – R2,500 |
| Chemical DPC injection (per linear metre) | R900 – R1,800 |
| Replaster after damp treatment (per m²) | R350 – R700 |
| Roof or balcony waterproofing (per m²) | R250 – R650 |
| Mechanical extraction to a bathroom or kitchen | R2,500 – R8,000 |
Indicative market ranges for guidance, not quotes. Full mould & damp guide →
Also common in Wynberg
- Borer arriving with sustained subfloor damp
- Blocked subfloor vents, which are cheap to clear and frequently the whole problem
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Frequently asked questions
Why does the damp keep coming back in Wynberg?
Almost always because the water source was never found. Painting over mould or sealing the inside of a wall removes the evidence and leaves the cause running. In Wynberg the usual cause is rising damp through absent or bridged DPC, and until that is dealt with the stain returns.
How much does a mould inspection cost in Wynberg?
Between about R1,800 and R4,500 for a diagnostic inspection with a written report, depending on the size of the property and access. Laboratory sampling, where it is genuinely warranted, adds R900 to R2,500 per sample — but for most homeowners who can already see the mould it adds cost without changing the remedy.
How do I know which type of damp I have?
By the pattern, not the appearance. A tide mark up to about a metre with salt crystals at the top edge, worse in winter, and often borer in Oregon pine floors above a damp subfloor. An inspector takes moisture readings at floor, mid-wall and ceiling height, plus humidity and surface temperature, because rising, penetrating and condensation damp each produce a different signature.
What will it cost to fix?
If it is truly rising damp, chemical DPC injection at R900 to R1,800 per linear metre — but the replastering afterwards is the larger bill. If it is a bridged DPC, lowering the external ground level costs a fraction of that and fixes it properly.
Is the mould in my home dangerous?
Indoor damp and mould are associated with respiratory symptoms, asthma exacerbation and allergic rhinitis, and the risk is higher for children, elderly occupants and anyone with asthma or a weakened immune system. It warrants prompt repair of the water source rather than alarm — and South Africa has no statutory indoor mould exposure limit, so be wary of anyone whose first recommendation is a laboratory test.
Mould inspections nearby
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- Mould inspection in Constantia
Full home inspection in Wynberg → · The complete guide to mould & damp →