Quick answer
Acoustic and thermal leak detection in Johannesburg runs from about R950 for a straightforward call-out to around R1,800 for complex multi-zone detection across a large property. In most cases the investigation cost is credited against the repair quote. It is almost always cheaper than the alternative, which is opening tiles, walls or a slab speculatively and repairing the damage afterwards.
Common causes
- Property size and the number of zones that have to be isolated and tested
- Whether the leak is on a pressurised supply line or a waste line, which need different equipment
- Access — slab and under-paving leaks take longer to pinpoint than accessible pipework
- Whether thermal imaging is needed in addition to acoustic correlation
- Whether a CCTV survey is required for drains as well as supply lines
- After-hours or emergency attendance rather than a scheduled appointment
What you can do now
- 1Do the meter isolation test first and record the results — a confirmed leak makes the call-out efficient
- 2Dye-test the toilets before booking, since a silent toilet leak needs no detection equipment at all
- 3Note where you have seen damp, warm spots or staining, with photographs
- 4Ask whether the detection fee is credited against the repair when you book
- 5Locate and clear access to your meter, stop-cock and inspection eyes before the appointment
When to call a professional
Book detection as soon as the meter ticks with everything closed, or the bill jumps with no visible source. Paying to find the leak precisely is what keeps the repair small. Ask for the written report and the marked location — you will need both for a municipal leak-adjustment application and for any insurance claim.
Typical cost in Johannesburg
R950–R1,800
Indicative ranges only. We provide written, itemised quotes before any work.
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