Toilet cistern repair in Singapore — running cisterns and weak flushes
A cistern that won't stop filling wastes water and money. An inside-tank photo usually gets you a from-price the same day.
Common cistern faults
- Running overflow — inlet valve not sealing
- Weak or incomplete flush — flush valve, flapper or seal wear
- Continuous trickle into the bowl
Send an inside-tank photo
Lift the cistern lid carefully, photograph the valves inside, and tell us the symptom. That is usually enough for a from-price from $60 plus any parts agreed first.
Running, weak or noisy — what the symptom usually means
| Symptom | Usual cause | What we check first |
|---|---|---|
| Water keeps trickling into the bowl | Flush valve seal or flapper not seating | Seal face and valve seat for grit or scale |
| Cistern keeps overflowing into the bowl | Inlet valve not shutting off | Float height and inlet valve diaphragm |
| Weak flush, needs two presses | Worn flush mechanism or low fill level | Flush linkage and cistern fill height |
| Whistling or knocking after a flush | High pressure or a failing inlet valve | Pressure at the point, valve condition |
| Water pooling at the pan base | Pan seal or cistern-to-pan coupling | Coupling washer and pan seal — usually not a valve job |
Concealed cistern and concealed flush repair
A concealed cistern sits behind a tiled panel, usually in newer HDB bathrooms, condos and hotel rooms. The valve work is the same as a standard cistern — the difference is access, and access decides whether the job is a same-day repair or a two-visit repair.
- Access panel present — we open the panel, photograph the inside and quote from there. No tile work.
- Sealed or tiled over — we tell you before anything is cut. Opening a sealed panel means cutting and reinstating tile, and that is a separate scope.
- Concealed flush plate — the plate, cable and flush valve behind it are what we service; a plate that has gone stiff is often the cable, not the valve.
Sensor and auto-flush repairs (urinals and commercial WCs)
Sensor-flush urinals and WCs in offices, F&B outlets and malls fail in three predictable ways: no flush at all, a flush that never stops, or a flush that fires while nobody is there. We check power at the unit, the solenoid, the sensor lens and the strainer before quoting a replacement — a fouled strainer or a dirty lens is a fraction of the cost of a new valve.
Repair the cistern or replace the WC?
Repair is usually right when the pan is sound and only the fill or flush mechanism has failed. Replacement starts to make sense when the pan itself is cracked, the outlet is badly scaled, or the model is obsolete and no compatible valve is available. The page for WC replacement covers that scope. We will tell you which side of that line you are on before you commit to either.
Questions we get
Can you fix without replacing the whole WC?
Most running cisterns are valve and seal jobs. Full WC replacement is a different scope — see WC replacement.
How much does a cistern repair cost in Singapore?
Cistern faults start from $60 for the call-out, with parts quoted and agreed before work starts. An inside-tank photo usually gets you a from-price the same working day.
My cistern is hidden behind a tiled panel — can you still repair it?
Yes, if there is an access panel. We open it, photograph the valves and quote from there. If the panel is sealed or tiled over, we tell you before anything is cut, because reinstating tile is separate work.
Why does my cistern keep running after I flush?
Two usual culprits: the flush valve seal is not seating, so water leaks past into the bowl, or the inlet valve is not shutting off and water spills into the overflow. Both are valve or seal jobs, not a new WC.
Do you repair sensor-flush urinals and commercial WCs?
Yes. We check power, solenoid, sensor lens and strainer before quoting, because a fouled strainer or a dirty lens is often the whole fault. Panel-hardwired and battery units are both handled.
Related
Send a photo. Get a from-price.
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