Why is my toilet constantly running?
A running toilet is usually caused by a worn flush valve (flapper), a faulty inlet valve, or an incorrectly set water level. It can silently waste thousands of litres and inflate your water bill.
It's typically an inexpensive fix. We'll replace the worn components and adjust the cistern so it fills and seals correctly.
What a running toilet usually means
The most common cause is a worn flush valve seal (the flapper) that no longer seats properly, so water trickles from the cistern into the bowl. A faulty inlet (fill) valve or a water level set too high can do the same, letting water escape down the overflow tube.
A quick sense-check: if you hear a faint hiss, or see a constant trickle running down the back of the bowl long after a flush, water is escaping where it shouldn't.
Why it's worth fixing promptly
A silently running toilet can waste thousands of litres a week, which shows up on your water bill. It rarely resolves on its own and usually worsens as the worn part deteriorates.
When to seek help
If the toilet keeps running after a flush, refills by itself without use, or you've adjusted the cistern and it still won't seal, it's worth having it looked at. Replacing worn valves and re-setting the cistern is typically a quick, low-cost repair.
We’ll inspect the cistern, identify the fault and explain the repair price.
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