Damp Surveys in London
A damp survey is a specialist inspection that identifies the cause, extent, and impact of moisture problems in your property.
We look for visible signs such as damp patches, mould growth, or peeling paint, but also detect hidden issues that can damage your home’s structure and affect your health.
Unlike many providers, we also check how dampness may have affected your indoor air quality (IAQ) — often overlooked but crucial for your wellbeing.
Types of Damp We Identify
Moisture can enter a building in several ways. We test for all of them:
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Rising Damp – Moisture rising up from the ground due to a failed or missing damp-proof course.
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Penetrating Damp – Water seeping through walls, roofs, or windows, often after heavy rain or due to building defects.
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Condensation – A common indoor problem caused by poor ventilation and temperature differences, often linked to mould growth.
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Mould Growth & Spores – Damp conditions often allow mould to thrive, releasing airborne spores that can affect both your property and your health.
How We Test
We combine industry-approved methods with the latest tools to give you reliable, impartial results:
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Moisture Mapping: Using calibrated moisture meters to pinpoint areas of concern.
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Thermal Imaging: Detects hidden leaks, cold bridges, and condensation risks behind walls and ceilings.
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Air & Surface Sampling: Where needed, we test for mould spores and volatile organic compounds (VOCs) to reveal any health risks.
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Evidence-Based Reporting: Our findings are benchmarked against recognised guidance such as BS 5250:2021 (Moisture in Buildings), PAS 2035, HHSRS Damp & Mould Guidance, and WHO IAQ Guidelines.
Why Independent
Surveys Matter
Most companies don’t bother testing for damp — they go straight to selling proofing work, not based on data but rather something else.
Even many “surveyors” are tied to contractors, which often means you’re pushed toward costly treatments you may not need.
At London Damp Survey, we do things differently.
We’re completely independent — our only focus is to give you honest, evidence-based answers about what’s really happening in your home.
Who We
Work With
Our surveys are ideal for:
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Homeowners – Diagnose issues early before they cause major damage.
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Tenants & Landlords – Get clear evidence to resolve damp and mould disputes fairly.
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Property Buyers – Identify hidden damp risks before you commit to a purchase.
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Housing Professionals & Legal Cases – Our evidence-based reports can support compliance and dispute resolution.
What’s Included in Our Reports
Every survey includes a detailed report with:
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A clear explanation of the type and source of damp.
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Photos, thermal images, and moisture readings.
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IAQ findings where applicable (mould spores, VOCs, humidity levels).
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Practical recommendations to fix the root cause — in plain English.
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References to the relevant standards and guidelines.