Damp survey in London
Damp patch, musty smell, mould coming back, or a survey flag on a purchase? Our London damp survey finds the actual cause - rising damp, penetrating damp, a leak or condensation - with moisture readings, written findings and a fixed quote for the fix. Free, within 24-48 hours, no obligation.
- Free survey and written findings
- 24-48h London response
- Fixed quote before any work
- 12-month guarantee on works
Free damp survey - booked in 60 seconds
What our London damp survey covers
A damp survey is only useful if it tells you the cause, not just where the wet patch is. Ours works through the property methodically:
Inspect
Affected rooms plus the usual suspects: external walls, window reveals, roofline, gutters, ventilation and nearby plumbing.
Measure
Moisture readings across walls and floors to map how far the problem extends and where it is worst.
Diagnose
Rising damp, penetrating damp, a leak or condensation - each has a different fix, and mixing them up is how money gets wasted.
Report
Written findings, the recommended remediation and a fixed quote. Yours to keep whether or not you use us for the work.
How much does a damp survey cost in London?
Our damp survey is free, including the written findings and a fixed quote for any recommended work. There is no call-out charge and no obligation to use us for the fix. That matters because the survey is where damp jobs go right or wrong: get the diagnosis for nothing, then decide with a fixed price in hand.
For context on the works themselves: industry cost guides put the average damp proofing job in London at around £1,220-£1,275, while mould treatment typically runs £200-£450 for a minor area, £600-£1,200 for a medium job and £1,500-£5,000 for severe, whole-property cases. Your quote is fixed in writing before anything starts.
Landlords: a survey report is your evidence trail
Damp and mould in rented homes now runs to a legal clock. Awaab's Law has set fixed investigation and remediation timescales for social landlords in England since October 2025, and the extension to private landlords is coming under the Renters' Rights Act. When a tenant reports damp, the landlords who come out of it well are the ones with a dated, written record of investigation and works.
Our survey gives you exactly that: documented findings, the remediation plan and, once work completes, before-and-after evidence backed by our unconditional 12-month guarantee. Read our full guide to Awaab's Law for private landlords - then get ahead of it.
Backed by a 12-month guarantee
If treated mould returns within 12 months, we come back and put it right. Accredited, insured and DBS-checked teams on every job.
Damp surveys across London
From Victorian terraces with no damp-proof course to airtight new-build flats, we survey every property type across all London boroughs within 24-48 hours, with in-depth coverage in:
Already seeing mould? Our mould removal team treats the mould and the moisture source together. Water coming through right now? We handle emergency leak repairs across London too.
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Frequently asked questions
- How much does a damp survey cost in London?
- Ours is free. We assess the affected areas, take moisture readings, identify what is driving the damp and give you written findings with a fixed quote for any recommended work - no call-out charge and no obligation. If damp proofing is needed, industry guides put the average London job at around £1,220-£1,275, and you will know your exact fixed price before anything starts.
- What does the damp survey cover?
- We inspect the affected rooms and the likely sources: walls, floors, window reveals, roofline and rainwater goods where relevant, ventilation and any plumbing nearby. We take moisture readings, distinguish rising damp from penetrating damp, leaks and condensation, and put the findings and recommended fix in writing.
- How quickly can you do a survey?
- We respond across London within 24-48 hours. Send photos with the form or on WhatsApp and we can usually give you an initial view the same day, then confirm findings on site.
- I am a landlord - will the survey report help with Awaab's Law?
- Yes. The written survey gives you a dated record of investigation, findings and the remediation plan - exactly the evidence trail that damp and mould rules now expect. Awaab's Law already sets fixed timescales for social landlords, and the extension to private landlords is coming under the Renters' Rights Act, so a documented response is the safest position for every landlord.
- Do you fix what the survey finds?
- Yes - that is the point of the fixed quote. If you go ahead, the same team treats the cause, whether that is damp proofing, a leak repair, ventilation or mould treatment, and the work carries our unconditional 12-month guarantee.
Book your free damp survey
Tell us what you are seeing and your London postcode - we'll be in touch fast and on site within 24-48 hours.