Independent damp & timber surveys across London

An independent damp report. With nothing to sell you.

ATI carries out no remedial work. We inspect, we evidence, we report. So the findings you receive are the findings, not the opening move in a quote for treatment you may not need.

Same day reply, and your full written report within 24 hours of the inspection. No contractors, no commission, no pressure.

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Up to 10 photos or PDFs, 25MB each. An earlier report or a shot of the affected wall often says more than a paragraph.

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    Your details arrange your survey and nothing else. No marketing lists, no contractor referrals.

    Received. We're on it.

    A surveyor will reply today to arrange the inspection. Your written report follows within 24 hours of that visit.

    No remedial work undertakenSo there is nothing for us to sell you
    Written evidencePhotographed, dated, defensible
    Professional indemnityFully insured practice
    24 hour reportingFrom inspection to your inbox
    London coverageEvery postcode district, north and south
    Why independent matters

    A firm that sells damp treatment cannot give you an impartial opinion about damp treatment.

    That conflict is the reason so many London homeowners end up paying for injected damp courses, hacked-off plaster and tanking they never needed. ATI has no treatment arm, no contractor partners and no referral fees. Our only product is the report.

    Zero commercial interest

    We do not carry out repairs, we do not subcontract them, and we take nothing from anyone who does. Findings are findings.

    Measured, not guessed

    Calibrated moisture and hygrometry readings, salt analysis where relevant, thermal imaging, and readings recorded room by room.

    A report you can act on

    Cause, extent, photographic evidence, a specification of what genuinely needs doing, and what does not. Written to be read by a third party.

    Stands up to scrutiny

    Used by buyers to renegotiate, landlords to answer complaints, agents to close disputes and solicitors to support claims.

    Request a Survey See our prices Short form. Same day reply. Surveys across London.
    The process

    Four stages, and the report is yours to do as you wish with.

    STAGE 01

    Request and reply

    Send the form with your London postcode. We reply the same day with a fixed fee for the inspection and the earliest slots available.

    STAGE 02

    The inspection

    Typically 60 to 90 minutes. Moisture profiling, hygrometry, external inspection, drainage and rainwater goods, sub-floor voids and timbers where accessible.

    STAGE 03

    The written report

    With you inside 24 hours. Cause, extent, photographic evidence, remedial specification, and an outline of what the work should reasonably cost.

    STAGE 04

    It is yours

    Use it to instruct a contractor of your choosing, to renegotiate a purchase, or to answer a complaint. We are not involved after that, by design.

    Start Stage One
    What we report on

    One report type. Many things it can settle.

    Whatever the symptom, the inspection is the same forensic process. Choose what you are dealing with to see how we approach it and what the report will tell you.

    Suspected Rising Damp

    Genuine rising damp is far rarer in London housing stock than the number of injected damp courses would suggest. The same tide mark can be produced by hygroscopic salts in old plaster, a bridged or raised external ground level, a defective gully, or a slow leak beneath a floor.

    We profile moisture at depth as well as at the surface, test for salt contamination, check external levels and drainage, and only then state whether capillary rise is actually occurring. In a good number of London inspections, it is not.

    Read the full guide to rising damp

    Book a Survey
    What you receive

    What you are buying is the document, so here is what is in it.

    Most people come to us already holding a quote and wanting to know whether it is justified. The report is what answers that. It is written on the assumption that somebody other than you will read it.

    • Written for a third party to readDrafted on the assumption it reaches a seller, a solicitor, an environmental health officer or a court.
    • The cause, with the evidence behind itMoisture readings, surface temperatures and photographs, and the reasoning that connects them to a conclusion.
    • A specification you can put out to tenderWhat needs doing, in enough detail to price. We undertake no remedial work, so we will not be bidding for it.
    • What does not need doingWhere a quote you are already holding goes beyond the defect we found, the report says so and explains why.
    • Within 24 hours of the inspectionFixed fee agreed before we attend, so there is nothing to negotiate afterwards and zero commercial interest in the outcome.

    Reviews from our Google Business Profile.

    Request a Survey See our prices Fixed fee quoted before we attend. No obligation to proceed.
    Landlords, agents & solicitors

    When damp becomes a dispute, the only useful opinion is a neutral one.

    Awaab's Law and the tightening of hazard assessment have put fixed deadlines around reported damp and mould in rented London housing. Tenants are better informed, disrepair claims are being brought more readily, and a contractor's quote is not evidence.

    ATI is instructed by private landlords, managing agents, housing providers and solicitors on both sides. Because we sell no remedial work, our findings carry weight with parties who would dismiss a contractor's assessment out of hand.

    Instruct an Inspection
    • Written for third partiesDrafted on the assumption it will be read by a tenant, an officer, an ombudsman or a court.
    • Cause apportioned honestlyFabric defect, ventilation provision or occupancy, distinguished rather than assumed.
    • Dated inside the deadlineSame day reply and a 24 hour report, so you can evidence that you acted promptly.
    • Block and portfolio instructionsMultiple London units inspected on one schedule and reported as a single pack.
    London coverage

    Damp surveys across London, in every postcode district.

    We are a London practice, and we know London housing: the Victorian terraces, the interwar semis, the mansion blocks, the converted flats and the basement conversions, along with the failure patterns particular to each. Surveyors cover the city north and south of the river.

    North & North WestN, NW postcodes

    • N1 Islington
    • N4 Finsbury Park
    • N5 Highbury
    • N6 Highgate
    • N7 Holloway
    • N8 Hornsey
    • N10 Muswell Hill
    • N16 Stoke Newington
    • N19 Archway
    • N22 Wood Green
    • NW1 Camden
    • NW3 Hampstead
    • NW5 Kentish Town
    • NW6 Kilburn
    • NW8 St Johns Wood
    • NW10 Willesden
    • NW11 Golders Green

    East & CityE, EC postcodes

    • E1 Whitechapel
    • E2 Bethnal Green
    • E3 Bow
    • E5 Clapton
    • E8 Hackney
    • E9 Homerton
    • E11 Leytonstone
    • E14 Docklands
    • E17 Walthamstow
    • EC1 Clerkenwell
    • EC2 Shoreditch
    • EC3 Aldgate
    • EC4 Blackfriars

    South EastSE postcodes

    • SE1 Southwark
    • SE4 Brockley
    • SE5 Camberwell
    • SE8 Deptford
    • SE10 Greenwich
    • SE13 Lewisham
    • SE15 Peckham
    • SE16 Rotherhithe
    • SE19 Crystal Palace
    • SE21 Dulwich
    • SE22 East Dulwich
    • SE23 Forest Hill
    • SE26 Sydenham

    South WestSW postcodes

    • SW1 Westminster
    • SW2 Brixton
    • SW4 Clapham
    • SW6 Fulham
    • SW8 South Lambeth
    • SW9 Stockwell
    • SW11 Battersea
    • SW12 Balham
    • SW15 Putney
    • SW16 Streatham
    • SW17 Tooting
    • SW18 Wandsworth
    • SW19 Wimbledon

    West & CentralW, WC postcodes

    • W1 Marylebone
    • W2 Paddington
    • W4 Chiswick
    • W6 Hammersmith
    • W9 Maida Vale
    • W10 North Kensington
    • W11 Notting Hill
    • W12 Shepherds Bush
    • W14 West Kensington
    • WC1 Bloomsbury
    • WC2 Covent Garden

    Outer LondonBordering districts

    • Barnet EN4
    • Enfield EN1
    • Croydon CR0
    • Bromley BR1
    • Kingston KT1
    • Richmond TW9
    • Ealing W5
    • Harrow HA1
    • Ilford IG1
    • Romford RM1
    • Sutton SM1
    • Uxbridge UB8

    Area guides

    Guides by problem

    Typical instructions include Victorian and Edwardian terraces with solid walls and later cement render, purpose-built mansion blocks with parapet and valley defects, interwar semis in the outer boroughs, converted flats with shared risers and inherited ventilation problems, and basement and lower-ground conversions waterproofed by a previous owner. Wherever you are in London, put your postcode in the form and we will confirm cover and fee the same day. For a property outside the capital, our sister practice DampScan covers Kent, Surrey, Essex, Sussex, Hertfordshire and Berkshire.

    Check Your Postcode We survey across London, seven days a week.
    Straight answers

    Fair questions about paying for a survey.

    What does an independent survey cost?

    We quote a fixed fee before we attend, based on the property type and the scope you need. You will know the figure in our same day reply and there is no obligation to proceed. We do not quote for remedial work, so the fee is the whole of our commercial interest in your property.

    Why not just use the free survey a damp company offers?

    Because it is a sales visit, not a survey. It carries no professional liability, it is produced by the party who will be paid for the treatment, and it will very rarely conclude that no work is required. Our report has no work attached to it.

    Do you carry out the repairs afterwards?

    No, and we never will. That independence is the product. The report specifies what needs doing in enough detail for you to obtain comparable quotes from contractors of your own choosing.

    Can you recommend a contractor?

    We deliberately do not, because a referral relationship would compromise the report. We will tell you what trade you need, what the specification must include, and what to be wary of in the quotes you receive.

    How long does the inspection take?

    Usually 60 to 90 minutes for a flat or standard terrace, longer for a larger house, a basement, or a full timber inspection. We will not rush it, and we will not open up fabric without your consent.

    When do I get the report?

    Within 24 hours of the inspection, by email, as a PDF. If anything found requires urgent attention we will tell you at the property rather than wait for the document.

    Will the report help me renegotiate a purchase?

    That is one of its most common uses. Because it states cause, extent and an outline cost of the remedial specification, it gives your solicitor something concrete to put to the seller instead of a vague concern.

    Which parts of London do you cover?

    All of it, north and south of the river, across every postcode district in London. Concentrating on one city's housing stock is a large part of why our diagnoses hold up, so put your postcode in the form and we will confirm the same day.

    Do you work for landlords and tenants?

    Both, and for solicitors and agents acting for either. We take no position beyond what the evidence supports, which is why parties on opposite sides are willing to accept the same report.

    Request a Survey Still unsure? Call 020 3355 4944 and we'll answer honestly.
    Get the facts first

    Before you pay anyone to fix it, find out what it actually is.

    Send your postcode and we will reply the same day with a fixed fee and the earliest inspection slots. Your written report follows within 24 hours of the visit.

    Request a Survey Call 020 3355 4944

    Fixed fee quoted upfront. No remedial work sold. No obligation.

    SurveyMate Verified Firm

    We produce our reports on SurveyMate, so an inspection follows the same method whoever attends and every finding is timestamped at the property. That matters when the report is later read by somebody who was not there.