By the time water stains a ceiling, the leak above it has usually been running for weeks. The house gives quieter hints long before that — you just need to know what to look for.
The five early signs
- A water bill that creeps up with no change in habits. A pinhole leak wastes hundreds of litres a day, and Air Selangor bills it all to you.
- Paint bubbling near skirting boards or a tide line low on a wall. Water inside a wall travels down, then sideways along the floor slab.
- A musty smell in one room that airing out never fixes, especially inside built-in wardrobes against bathroom walls.
- Hairline tile cracks or lifting vinyl in one spot — long-term moisture moving the substrate underneath.
- The sound of water at 2am. A faint hiss near a wall when every tap is off is the most reliable sign of all.
The two-minute meter test
This confirms a leak without opening anything. Tonight, before bed: close every tap, make sure the washing machine, filter and toilets aren't refilling, and photograph your water meter — including the small red dials. In the morning, before anyone uses water, photograph it again. Any movement overnight means water left your pipes while nobody used any. That's a leak, full stop.
What to do with a positive test
First, find your main stop valve (usually beside the meter) and confirm it actually closes — many older valves seize. Then call a plumber who does acoustic detection rather than one who quotes for exploratory hacking. Locating first means the repair opens one small hole instead of a trench across your living room. That difference is typically thousands of ringgit in making-good costs.
If the meter test comes back positive at your place, send us the two photos when you book — the flow rate they show helps us guess pipe size and leak severity before we arrive.