Insurance-grade leak detection survey

Insurance-grade leak detection survey across Greater London and the wider South East. A written report your insurer will accept on first submission, combining thermal imaging, acoustic correlation, tracer gas and fluorescent UV dye to locate hidden leaks without destructive opening.

When your insurance claim hinges on a hidden leak, the report you submit decides whether the trace-and-access cover pays out promptly or gets bounced back for more evidence. 247 Rapid Response runs the survey to insurance-claim-handler specifications. We arrive with the kit, document the survey live, and email the written report within two working days. Every major UK insurer (LV, Aviva, Direct Line, Admiral, Hiscox, Zurich, AXA, RSA, NIG, Allianz, Ageas, Legal & General) has accepted our reports on first submission for trace-and-access claims.

What's in the survey

• FLIR E76 or E96 thermal imaging (320×240 or 640×480 sensors, sensitive to under 0.04°C differential). Captures the cold-spot pattern of a live leak through plaster, paint and floor coverings.
• Sewerin Aquaphon A150 acoustic correlation with rod, ground microphone, and hydrophone for tanks. Locates pressurised supply leaks behind walls and under floor.
• Tracer gas (5% hydrogen / 95% nitrogen, BS EN 14338-compliant) for buried supply pipework and inaccessible runs.
• Fluorescent UV dye (WRAS-approved sodium fluorescein and Rhodamine WT) with Spectroline OPX-365 UV lamp, for shower-tray and bath-leak isolation.
• Protimeter Surveymaster moisture mapping across the affected zone for the damp signature.

What the report includes

Location coordinates and a dimensional sketch of the leak position, photographic evidence (with date and time stamps), thermal-image scans annotated with temperature differentials, estimated leak rate in litres per hour, a written recommendation of the access cut required to reach the leak, and a recommended-repair scope. The format matches what loss adjusters expect: clear, evidenced, no ambiguity.

Pricing

Insurance-grade leak detection survey: priced per our published rate card (see full pricing) for a 60 to 90 minute on-site visit including the written report. Free if your home insurance trace-and-access cover reimburses the survey (we bill your insurer direct where the policy allows). Same-day surveys available across all London zones. Outside London, scheduled within 1 to 2 working days.

When to book

• You have visible damp staining but no obvious source.
• Your downstairs neighbour reports a ceiling leak above their flat.
• You suspect a leak under the floor or behind a wall but don't want to start cutting blind.
• Your insurer has asked for a survey before authorising trace-and-access work.
• You're in the middle of a claim and need a second-opinion report.

Call 020 8050 5306 to brief us on the claim, or book online. Mention "insurance claim" so we tag the booking for insurance-grade reporting from the outset.