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    Evidence & Reporting

    How to photograph mould evidence for your landlord or council

    Good photos are the single most useful piece of damp and mould evidence you can gather. A calm, dated set of five clear images will do more for your case than a phone camera roll full of similar close-ups. This guide walks through exactly what to take, what to avoid, and how to keep your evidence organised over time.

    Written and reviewed by Vincent Pamenter, Founder, Stop The Mould

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    A hand holding a coin beside a small patch of mould at a window reveal while the other hand photographs it
    The close-up with a scale reference: the coin beside the patch, the phone steady. Illustrative scene, not a photograph of a real case.

    In short

    Take three photographs of every affected area: a wide shot that shows the whole wall and where it sits in the room, a medium shot with something for scale, and a close-up of the growth. Use daylight, keep the originals unedited, and repeat from the same spot weekly and after any visit or repair. Photographs prove presence, extent and change over time; they do not prove the cause, and they should never be presented as if they did.

    Who this applies to
    • Tenants documenting damp or mould for a landlord, agent, council or adviser
    • Homeowners preparing for a survey or an insurance claim
    • Landlords recording an inspection
    Key steps
    1. Wide shot, medium shot, close-up, in that order
    2. Date every photograph and keep the originals
    3. Include a reference for scale and a fixed feature for position
    4. Repeat weekly from the same spot
    5. Store them with the written report and every reply
    Jurisdiction
    UK-wide. The evidence habits are the same in every nation; what the photographs are used for differs by tenure and law.
    Important limitations
    • A photograph cannot show moisture content, what is behind the wall or whether the air is harmful
    • Flash and heavy editing hide texture and colour; avoid both
    • Illustrative images on this site are labelled as such and are not photographs of real cases

    First published · Last substantively reviewed

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    Short answer

    To photograph mould evidence properly, take five photos per affected area: a wide room shot, a mid-range shot showing the affected wall or ceiling in context, a close-up of the mould itself, a shot of any window, vent or leak source nearby, and a photo of the date on your phone or a newspaper. Keep faces, documents and children out of frame. Re-photograph the same spot every 1–2 weeks so you can show change over time.

    Golden rule

    One clear, dated wide shot is worth more than twenty phone-roll close-ups. Landlords, agents and councils need to see the room, not just the mould.

    Fig. 02
    How to photograph mouldFour numbered frames showing the photographs to take: the whole room from the doorway, the affected corner with its extent outlined, a close-up with a 100 mm scale bar, and the possible source: a window with condensation runs and a closed trickle vent.How to photograph mouldFour frames, in order01Room from doorway02Affected area100 mm03Close-upVent closed04Possible source
    The four views, in order: the room, the affected area, the close-up and the possible source. Illustrative diagram, not a real case.

    Why photos matter

    In damp and mould disputes, the person with dated, organised evidence usually gets taken seriously first. Without photos, a report can be dismissed as exaggeration or lifestyle blame. With photos — especially ones showing the affected area in context — the conversation shifts from he-said-she-said to visible fact.

    Photos also protect you if the issue gets worse before anyone visits. A dated set from six weeks ago is powerful evidence that the problem is not new, not caused by you last week, and not fixed by a single quick clean.

    The five photos to take

    For every affected area, aim for these five shots. They take less than five minutes and give a landlord, agent, council or specialist enough to work from without needing to ask you for more.

    #PhotoWhy it matters
    1Wide room shotShows scale, furniture placement, ventilation, windows — landlords want to see the whole context, not just the worst spot
    2Mid-range shot of the affected wall or ceilingShows where the mould sits within the room (corner, window reveal, behind furniture)
    3Close-up of the mould or damp patchShows colour, pattern and spread — helps distinguish surface mould from deeper damage
    4Nearby moisture source (window, vent, leak, radiator)Explains likely cause — condensation, penetrating damp, leak
    5Date reference (phone screen with date visible, or newspaper)Turns any photo into dated evidence a landlord or council can rely on

    Include a scale reference where useful

    A ruler, a phone, a coin or your hand next to the affected area helps show real size — much clearer than 'a patch about this big' in an email.

    What not to include in the frame

    This matters because photos often end up shared with multiple parties: landlord, agent, letting agent's contractor, council environmental health, a specialist you may later instruct, and possibly the Housing Ombudsman. Assume every photo will travel further than you intended.

    • Faces of tenants, family or visitors
    • Children — even if the mould is in a child's room, keep them out of shot
    • Documents, letters, bank statements, medication or anything with personal data
    • Neighbours' property visible through windows
    • Anything that could identify a specific address in a way you don't want shared later

    How to date your evidence

    Every phone photo already has hidden metadata (EXIF data) with a timestamp, but that can be lost when photos are compressed by email or messaging apps. Belt-and-braces is better.

    • Take one photo with your phone screen visible in-frame showing today's date
    • Or place today's newspaper in one shot
    • Keep the original photos on your phone — do not delete them after sending
    • When you email a set, mention the date the photos were taken in the body of the email, so the email itself becomes a dated record
    • If you use a photo-based report, that report will carry its own dated case reference

    How often to re-photograph

    Damp and mould rarely stay the same. Re-photographing the same spot on a regular schedule turns a single snapshot into a timeline — and a timeline is much harder to dismiss.

    • Weekly if the problem is spreading, if you have a vulnerable occupant, or if you have already reported it
    • Every 2 weeks for a stable but ongoing issue
    • Immediately after any repair, clean or treatment — from the same angle as before
    • Immediately after a heavy rain event if you suspect penetrating damp or a leak
    • Immediately if it visibly worsens, spreads, or returns after being cleaned

    What landlords, agents and councils actually need to see

    Most professionals looking at damp and mould photos are trying to answer three questions: where in the property is it, how serious is it, and what likely caused it. Your five photos should let them answer those questions without needing to visit — even if a visit is still the right next step.

    Good evidence

    • Wide shot showing room, window and ventilation
    • Clear close-up with visible scale reference
    • Dated evidence (phone screen, newspaper or email date)
    • Photo of any nearby leak, vent or moisture source
    • Multiple dates showing change over time

    Weak / avoid

    • Twenty near-identical close-ups from the same angle
    • Photos with faces, documents or personal items in frame
    • Screenshots of screenshots (loses metadata and quality)
    • Cropped-in shots with no context of the room
    • Photos with no date reference and no accompanying email

    When photos are not enough

    Photos are strong for surface evidence. They are weak — sometimes useless — for what is happening inside a wall, above a ceiling, under a floor, or in a roof void. If a landlord, agent or council pushes back on photos alone, that is often a legitimate signal that an in-person inspection is needed.

    It is not a failure of your evidence. It is the boundary of what any photo-based report — including ours — can honestly tell you.

    Signals to escalate to an in-person survey

    Recurring after treatment, spreading fast, bulging or cracked plaster, timber decay, sagging ceiling, active leak, or vulnerable occupants (children under 2, elderly, respiratory conditions).

    Frequently asked questions

    From first photo to clear action.

    Upload photos, record what's happened and build one clear damp and mould case file you can use with your landlord, council, adviser or for your own records.

    Related guides

    Guidance only. Stop The Mould is not a medical, legal or surveying service. A photograph-based assessment cannot replace an emergency repair, an intrusive survey, laboratory testing, or professional medical or legal advice. Housing law differs between England, Wales, Scotland and Northern Ireland and between tenures. For your specific situation, consult a qualified professional.