Look for patterns, not a single diagnosis
A damp patch may relate to plumbing, rainwater, condensation or another cause. Note whether it changes after using a shower, running a tap or during wet weather. Photograph the same area over time, and record when the problem first appeared.
Check only what is safely visible
Look around accessible connections, under sinks and near fittings without removing covers or disturbing surfaces. A dry visible pipe does not rule out a hidden leak. Do not open walls, lift heavy flooring or enter an unsafe ceiling space to follow a stain.
Meter information can be useful
If you have a meter, follow your water supplier’s guidance on checking for unexpected usage. Movement while water is genuinely unused may prompt investigation, but appliances, toilet refilling and shared arrangements can affect the result. It does not reveal the leak’s location.
What a non-invasive investigation can establish
An initial assessment reviews symptoms and accessible fittings. It cannot guarantee that every concealed source will be found without opening a surface. Discuss any proposed access work, repair and making good separately before agreeing the next stage.
Act sooner if the situation changes
An actively spreading leak needs prompt attention. Keep clear of water near electrical equipment and avoid wet switches. If safe, isolate the water supply and arrange appropriate help. Do not continue using a fitting that is visibly causing damage.
Arrange the next step
Send the observations and photos through our non-invasive leak investigation service. If the source is already visible, see accessible pipe repairs.
Arrange help with your property
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