Property care · Catch it early
Small Signs of a Water Leak — and What They Can Cost if Ignored
A tap that keeps dripping or a faint mark on the ceiling can be easy to overlook. In Cape Town, the first heavy winter rain can then reveal what has been quietly getting worse.
In Table View and Blaauwberg, wind and winter rain can expose problems around roofs, gutters, windows and walls. A small leak caught early is almost always easier to deal with than the same leak found after damp, mould or damaged finishes have spread.
What to look for
Start with changes that do not have an obvious explanation.
An unexplained rise in water use may point to a leaking toilet, tap or pipe. A leaking toilet can waste about 2 600 to 13 000 litres of water in a month, depending on the flow. A leaking tap can waste about 400 to 2 600 litres. That extra water can increase the bill while also wasting a scarce resource.
Check for a water meter that moves when every tap is closed, no toilet is being flushed and appliances are not using water. This is one of the clearest signs that water is escaping somewhere.
Inside the property, look for:
- Damp patches on walls or ceilings
- Peeling paint or plaster
- A ceiling stain that appears or grows after rain
- Mould
- A musty or persistently damp area
- Moisture around a toilet, basin or other fitting
Outside, look from ground level for wet patches in the yard, overflowing gutters or damaged downpipes. Water entering through a roof, window, balcony or external wall can also show up as damp or peeling finishes indoors.
Do not assume every damp mark is a plumbing leak. In a room without enough airflow, condensation can also build up. At one Table View property, ongoing condensation in a room with no airflow led to mould on the walls and rust on metal appliances. Let the house breathe, and investigate moisture rather than simply covering it.
Simple checks you can do yourself
You can carry out a basic meter check without opening walls or touching plumbing.
Close all taps. Do not flush toilets or run appliances. Record the water-meter reading, wait at least 15 minutes, then check it again. If the reading has increased, arrange for a qualified professional to investigate.
A toilet can also give useful clues. Listen for trickling. You can press toilet paper against the inside back of the bowl to see whether water is moving, or place food colouring in the cistern and check after 15 minutes whether the colour appears in the bowl.
For the outside of the property, stay at ground level. Look for wet ground, overflowing gutters, damaged downpipes, damp marks, peeling paint, mould and ceiling stains visible from inside. Do not climb onto a wet roof.
If materials or furnishings are damp, dry them promptly. The National Department of Health advises drying wet building materials and furnishings within 24 to 48 hours to help reduce the chance of mould growth. Painting over damp, peeling or mouldy surfaces without stopping the source only hides the warning.
When to call a registered professional
Call a qualified, accredited plumber when the meter test suggests a leak, when a pipe is leaking inside a wall or underground, or when a toilet cistern or fitting keeps leaking. Complex plumbing is not the place for a quick fix. Poor work can leave the leak unresolved, use unsuitable materials or fail to meet Cape Town’s requirements.
For new or changed water installations, use an accredited plumber and ask about the required compliance documentation or certificate where one applies. Plumbing work must comply with the City’s water by-laws, applicable SANS codes and the National Building Regulations.
Use a qualified roofer or building-maintenance professional when water is entering through the roof, flashing, windows, balconies or external walls, or when plaster, ceilings or structural areas are deteriorating. Do not work at height on a wet roof.
Keep people away from wet plugs, light fittings, distribution boards and appliances. If water has reached electrical fittings, call a registered electrician. Do not attempt electrical repairs yourself.
Roof and gutter water must not be directed into a sewer drain. Rainwater needs to go to the street or the City stormwater system. Directing it into the sewer can overload the network during heavy rain and may lead to compliance action and a fine.
The Cape Nest way
Before a water-related job starts, Cape Nest takes photos and sends a report so the starting condition is clear. We agree in writing what “finished” means, and get the owner’s approval before any extra work or cost is added. When specialist work is needed, we brief a registered contractor and check the work before it is treated as complete. Afterwards, we send a completion note explaining what was done and what remains open.
Quick checklist
- Check whether your water use has risen without an obvious reason.
- Test whether the meter moves when all water use has stopped.
- Listen for a toilet that keeps trickling.
- Look for damp, mould, peeling paint or ceiling stains.
- Inspect gutters and downpipes from ground level.
- Dry damp materials promptly.
- Use a registered professional for specialist work.
How Cape Nest can help
Cape Nest can check your property for these early signs, photograph what we find and send you a report. When a leak needs specialist work, we brief a registered plumber, agree what finished means, and check the job before we call it done.