Begin with what you see
Something’s changed.
Let’s understand it.
Choose the symptom closest to your situation. These pages explain useful observations and the type of investigation that may help.
Select a symptom for a useful starting point. This is guidance, not a diagnosis.
Boiler pressure keeps dropping
Repeated pressure loss deserves a diagnosis, especially when the visible radiator connections are dry.
Explore boiler pressure keeps droppingInside the homeDamp with no visible leak
A damp patch can outlive the event that caused it, or be fed by water arriving through a concealed route.
Explore damp with no visible leakWater supplyAn unexpectedly high water bill
An increased bill can reflect a reading change, increased use or escaping water.
Explore an unexpectedly high water billWater supplyWater meter moving unexpectedly
A meter recording use when you believe everything is off is a clue that deserves context.
Explore water meter moving unexpectedlyInside the homeA stain spreading across the ceiling
The damaged ceiling shows where water arrived, which can be different from where it escaped.
Explore a stain spreading across the ceilingInside the homeA wet floor with no obvious source
Moisture can travel beneath a floor finish and emerge around a threshold, wall edge or joint.
Explore a wet floor with no obvious sourceWater supplyRunning-water sounds when taps are off
Unfamiliar water noise may come from normal system activity or a fault.
Explore running-water sounds when taps are offOutside the homeA garden that stays wet
Persistent ground moisture can come from rainfall, drainage or leaking private pipework.
Explore a garden that stays wetShared buildingsWater coming from the flat above
Water crossing between homes needs coordinated access and an agreed instruction.
Explore water coming from the flat aboveBathroomsA leak appearing after a shower
A shower-related leak can involve supply pipes, waste connections or the enclosure itself.
Explore a leak appearing after a showerIntermittent problemsA leak that keeps returning
A dry day or a recent patch repair does not always settle the underlying cause.
Explore a leak that keeps returningWater supplyA water-company leak notification
A supplier’s letter or message can identify a possible loss without establishing the exact repair location.
Explore a water-company leak notification