Damp and mould inspection, defined: a check of a home to find the source of moisture, the extent of the mould, and the work needed, recorded so the landlord can show what was found and when.
A damp and mould inspection is an examination of a home to establish whether damp is present, what is causing it, how far mould has spread and what repair or change is needed. It combines a visual check of walls, ceilings, reveals and corners with moisture readings, a look at ventilation and heating, and an external check of gutters, pointing and ground levels. It is usually the step that decides whether a full damp survey by a specialist is needed.
The definition matters because damp complaints are the most common repair dispute in UK housing, and because for social landlords in England the inspection now has a statutory clock on it.
What a damp and mould inspection covers
The inspector is trying to answer one question: where is the water coming from? Three answers are possible, and the treatment differs for each:
- Condensation: warm, moist indoor air meeting cold surfaces. Mould in external-wall corners, on window reveals, behind wardrobes, on bathroom ceilings. Points to ventilation, heating and cold bridging.
- Penetrating damp: water getting in from outside through a roof, gutter, cracked render or failed seal. Patches that grow after rain, often high on a wall or around a window.
- Rising damp: ground moisture drawn up through a wall, with a tide mark low down and salts on the plaster.
The check itself: each affected room photographed wide and close; moisture meter readings taken in a pattern across the wall rather than as one spot; relative humidity and temperature noted; extractor fans tested; trickle vents checked; and outside, the gutters, downpipes, ground level against the damp-proof course and any cracked pointing. The RICS and Property Care Association joint position statement on investigating moisture is the reference professionals work to: establish the cause before prescribing a treatment.
Awaab's Law and the timeframes for social landlords
Awaab's Law is the name given to the provisions of the Social Housing (Regulation) Act 2023 that set fixed timeframes for social landlords in England to deal with hazards. Phase one, in force since 27 October 2025, covers damp and mould that present a significant risk of harm, plus all emergency hazards. Once a landlord becomes aware of a potential damp and mould hazard it must investigate within 10 working days, give the tenant a written summary of its findings within 3 working days of the investigation finishing, and complete any relevant safety work within 5 working days of the investigation concluding. Emergency hazards must be dealt with within 24 hours. Further hazard types are phased in through 2026 and 2027, and the government has signalled extending the same duties to private landlords.
For the inspection this means the dates of the complaint, the visit and the summary are now facts the landlord has to prove, not just the condition of the wall.
Damp and mould inspection example: the bedroom corner
A tenant in a ground-floor housing association flat reports black mould in the corner of the child's bedroom. The landlord sends a capture link the same day: photograph the corner, the window, behind the wardrobe, the bathroom fan while the light is on, and answer whether the heating is used in that room. The photos arrive that evening with the timestamps attached, and the case is logged against the ten-working-day clock.
The surveyor's visit finds the meter reads high across the corner and normal elsewhere, the bathroom fan is seized, and the wardrobe has been hard against the external wall. Diagnosis: condensation, made worse by a failed fan and no air movement behind the furniture. The fan is replaced, the mould is treated, and a written summary goes out within the three working days. A follow-up capture a month later shows the corner clear.
What a damp and mould inspection does not do, and the mistakes made
It does not fix anything. It diagnoses. Mould wash and paint without fixing the source comes back within a season.
One meter reading is not a diagnosis. A pattern of readings across a wall, photographed alongside the meter, is evidence.
The mistakes that end up in front of the Housing Ombudsman or in a disrepair claim:
- Blaming the tenant's lifestyle before the source has been established.
- No dated photos at the first visit, so nobody can later show how bad it was or how long it took.
- Treating the symptom (the mould) and never checking the fan, the gutter or the cold bridge.
- No follow-up, so a returning problem is treated as a new complaint and the clock starts again.
- Waiting for a surveyor's slot before looking at all, when a tenant's photos would have told the team within the hour whether this was urgent.
Where the inspection record goes
Into the repair case: the complaint date, the photos, the readings, the diagnosis, the written summary sent to the tenant and the completion evidence. For social landlords the same file is what the regulator and the Housing Ombudsman will ask for; for private landlords it is what a council officer assessing the hazard will want to see. A server timestamp on each item makes the file far easier to defend than phone photos of uncertain date. Related entries: water damage, property inspection, and the mid-tenancy inspection entry in this glossary. For how tenants can report repairs with usable photos, see tenant repair reporting with photos.
Venta Capture, a product of VentaVid, is one way to run the tenant-led route: the tenant is sent a secure, personal capture link, follows the guided steps in the mobile browser with no app and no account, and the submission arrives timestamped and sealed for the housing officer or surveyor to review, with a copy that can go back to the tenant so both sides hold the same record. Details at the Venta Capture pages.
In practice: see how field service teams use Venta Capture.