A wet ceiling has two causes: the roof above it, or a pipe inside it. Warm water points at plumbing, cold at the roof.
A sagging saturated board is a safety issue and should be taken down rather than dried in place. See Leak Detection Pretoria.
Say whether the stain appears in rain or regardless, and if it is warm.
Get a Ceiling Leak QuoteRoof or Plumbing
| Clue | Points to |
|---|---|
| Only after rain, worse in wind | Roof, flashing or wind-driven entry. |
| Constant, dry weather included | Plumbing, most often the geyser or its lines. |
| Stain feels warm | Hot water line or geyser. Isolate at the DB board. |
| Directly below a bathroom | Shower, bath or waste connection above. |
Do Not Just Repaint
Stain-block over a live leak buys a few weeks. Water continues to soak the board and the ceiling brandering behind it, and saturated gypsum loses strength progressively until it fails. Fix the source, let the void dry, then make good.
Ceiling Leak Repair Prices in Pretoria
| Job | Indicative range | What moves it |
|---|---|---|
| Inspection and source tracing | R450 – R1,900 | Roof space plus thermal where needed. |
| Thermal imaging of the ceiling | R1,200 – R2,800 | Distinguishes plumbing from roof. |
| Plumbing repair in the ceiling void | R1,750 – R2,500 | Excludes ceiling replacement. |
| Ceiling board replacement, per m² | R280 – R650 | Gypsum board, cornice extra. |
| Full room ceiling replacement | R4,500 – R14,000 | Depending on size and cornice detail. |
| Cornice replacement, per metre | R120 – R320 | Matching profiles costs more. |
| Stain sealing and repaint | R1,200 – R4,500 | Only once the source is fixed and dry. |
These are indicative market ranges, not a quotation. They are compiled from published South African leak detection and plumbing pricing to give you a starting point for budgeting. They are not the rate card of any company on this platform.
A ceiling that is bulging or sagging under retained water should be drained and taken down. Standing under it to inspect is not worth the risk.
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Frequently Asked Questions
Is a sagging wet ceiling dangerous?
Yes. Saturated gypsum board holds a lot of weight and fails without much warning. Keep people out of the room, and have it taken down rather than left to dry in place.
How do I tell if it is the roof or a pipe?
Timing and temperature. Rain-linked and cold points at the roof; constant and warm points at the geyser or a hot water line. If it is warm, switch the geyser off at the DB board straight away.
How long before I can repaint?
Let the void dry fully once the source is fixed, typically one to three weeks depending on ventilation and how saturated the material was. Painting early traps moisture and the stain returns.
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