Mould removal is priced by the size of the affected area and, crucially, by the moisture source behind it. Here are the real 2026 Cape Town ranges, and why a job that only scrubs the surface is money wasted.
| Item | 2026 price | Notes |
|---|---|---|
| Inspection and moisture diagnosis | R450 to R900 | Finding the moisture source that is feeding the mould. |
| Treat and seal a single affected room | R1,500 to R5,000 | Biocide treatment and making good a typical room. |
| Anti-mould wash and breathable paint system | R150 to R350 / m² | Surface system where the cause is mild condensation. |
| Treatment plus underlying damp repair | R6,000 to R20,000+ | Where the mould is fed by rising or penetrating damp. |
These are indicative Cape Town market ranges for 2026 to help you compare, not a quote.
Household bleach removes the colour of the mould but leaves the root structure and does nothing about the moisture feeding it, so it returns. Specialists use proper fungicidal biocides and, just as important, fix the damp or condensation source. That combination is what makes the removal last.
Mould is a symptom of too much moisture. If the cause is simple condensation in a poorly ventilated room, the fix is cheap, treat the surface and improve ventilation. If the mould is fed by rising or penetrating damp or a leak, the real cost is in fixing that underlying problem, which is why an honest quote starts with a diagnosis.
Persistent indoor mould can trigger allergies, asthma and respiratory irritation, and children, the elderly and immune-compromised people are more sensitive. Treating it promptly and fixing the cause is cheaper and healthier than living with it and repainting every year.
Treating and sealing a single affected room is typically R1,500 to R5,000, with an anti-mould wash and breathable paint system around R150 to R350 per square metre. If the mould is fed by underlying damp, expect R6,000 or more once the cause is fixed.
Only if the moisture source is left unfixed. A surface clean alone will fail. Treatment that removes the growth with a biocide and fixes the damp or ventilation problem behind it is what keeps it from returning.
Tell us about the problem and we'll connect you with one trusted local specialist for a free, no-obligation quote.