diagnose damp at home

Guided diagnosis: what kind of damp is this?

A short question path on where the problem appears, when, and whether it climbs from the floor. A working hypothesis, not a survey.

You have a visible problem and want a working track, not a survey.

Answer from what you see, not from what you feared you had.
You get a track (condensation, indoor vapour, possible rising damp, possible leak) and next steps.
Print or save the summary. It is not a document you can serve on a landlord or an insurer.

1 / 6 · Observations

An editorial tool. A surveyor may conclude otherwise with on-site tests.

Useful next step

Follow the track: measure, use the tools, then maybe a relevant product.

What may help (after diagnosis)

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10–25 €

Without a relative-humidity number, every tip is guesswork. A €10–25 hygrometer is the first useful purchase — before any dehumidifier.

When: Always, as the first diagnostic step.

Not when: It does not replace a moisture meter or a rising-damp survey.

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Does this count with a landlord or insurer?+

No. It is an editorial note. A surveyor may conclude otherwise with on-site tests.

Why send me to a hygrometer instead of a dehumidifier?+

Because without an RH number every purchase is a guess. The product comes after the track.