Landlord Damp and Mould Record Keeping — Evidence Logs, Communication Trails, and Contractor Sign-Offs

Why a Paper Trail Wins or Loses Damp Disputes

When a local authority environmental health officer assesses a damp and mould complaint, or when a tenant takes a Section 9A fitness claim to county court, the question is not only whether the problem exists — it is whether you responded properly and when. The evidence file is your defence.

Landlords who can produce a timestamped sequence of reports, acknowledgements, inspections, contractor instructions, completion confirmations, and tenant communications consistently fare better in civil penalty decisions and tribunal hearings. Landlords who rely on verbal recollections or scattered text messages do not.

What Your Evidence File Needs

A defensible damp and mould evidence file tracks five categories of information across every reported issue:

1. Tenant Report Log

Record the date, time, and method of every tenant report. If they text you a photograph of mould in the bedroom, save the image with its metadata. If they phone, note the date and what they described, then follow up with a written acknowledgement by email or letter.

The key fact: your repair duty under Section 11 of the Landlord and Tenant Act 1985 is triggered by notice. The date you received notice starts the clock on what a court considers a "reasonable time" for repair. Losing the record of that date costs you control of the timeline.

2. Written Acknowledgement and Investigation Plan

Reply to every damp or mould report in writing within 48 hours. The acknowledgement should confirm what was reported, what you plan to investigate, and when you will inspect or send a contractor.

This is not a legal requirement under current private sector law — the 10-working-day investigation and 3-working-day written-summary clocks apply to social housing, while the private-sector extension is not yet in force and depends on secondary regulations. But adopting the pattern now builds a paper trail that demonstrates diligence if enforcement or litigation follows.

3. Inspection and Access Records

Log every inspection visit: date, time, who attended, what was found. Include photographs with visible dates (use a timestamp camera app or a digital camera with date overlay). If the tenant grants access, note it. If the tenant refuses or cannot accommodate a visit, record the access request, the proposed alternative dates, and the outcome.

If access is repeatedly refused, keep the written requests as evidence. Documented reasonable efforts to gain access establish a statutory defence against HHSRS civil penalties.

4. Contractor Instructions and Sign-Off

When you instruct a contractor, keep the written instruction (what work was ordered, the specification, the date). When the contractor completes the work, get a written completion report or sign-off that includes the date, what was done, and the contractor's details.

If the work involves specialist investigation — a damp survey, moisture readings, thermal imaging — keep the full report. The surveyor's findings become your evidence of root-cause diagnosis.

5. Follow-Up and Monitoring

After remedial work is completed, schedule a follow-up inspection to confirm the issue has not returned. Record the follow-up visit and its findings. This closes the loop — it shows you did not just patch the surface and walk away.

How Long to Keep Records

There is no single statutory retention period that covers everything, but the practical answer is: keep damp and mould records for the entire tenancy plus six years (the standard limitation period for civil claims in England). Gas safety records must be kept for a minimum of two years. EICR reports should be kept until the next inspection. For everything else, err on the side of keeping it.

The Lifestyle Defence Problem

Landlords sometimes attribute mould entirely to tenant lifestyle — not opening windows, drying clothes indoors, not using the heating. Environmental health officers and courts are increasingly sceptical of this defence unless you can prove the building itself provides adequate ventilation and heating.

If your property lacks trickle vents, has no extractor fans, or has inadequate loft insulation, a lifestyle defence will not hold. Your evidence file needs to include documentation that the property's ventilation and heating systems are adequate — mechanical extract flow rates, trickle vent presence, insulation thickness, heating system output.

The evidence cuts both ways. If your building systems are sound and the tenant is genuinely obstructing ventilation (blocking vents, refusing to allow fan repairs), your documented access requests and inspection records become the defence.

One System, Not Scattered Files

The practical challenge is not knowing what to record — it is doing it consistently across every issue, every property. A single evidence file template, used every time, prevents the gaps that undermine a defence.

Our Decent Homes & Awaab's Law compliance guide includes a hazard workflow log, access request log, and contractor sign-off template — the complete paper trail system in printable format.

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