Exact Source

Home / Blog / Marlow

Marlow · Leak detection guidance

Leak photographs in Marlow: captions that make evidence usable

Exact Source · 13 October 2026 · 2 min read

Leak photo evidence in Marlow is most useful when another person can tell what each image shows and where it was taken. A folder of close-ups can be surprisingly difficult to interpret weeks later. Simple numbering and factual captions help photographs support an investigation instead of becoming a source of confusion between rooms, dates and stages of work.

Pair context with detail

For each affected area, keep one wide image showing the room and one closer image of the symptom. Use a fixed feature such as a doorway or radiator to describe the location. Do not lean into an unsafe area or disturb materials to obtain a better angle.

Number the pair so the relationship is obvious. A close-up of a ceiling mark is easier to use when its companion image identifies which corner of which room is involved.

Write captions as observations

A useful caption might identify the date, room, wall and visible change. Avoid labelling an image as proof of a failed pipe unless that source has been established and the supporting record is referenced. Keep the photographer's observation separate from any later professional interpretation.

If a photograph was supplied by someone else, retain their description and note who provided it. Do not replace an uncertain date with the date the file arrived in your inbox.

Give specialist images their own context

Thermal images need more explanation than ordinary photographs. FLIR states that a thermal camera records surface heat patterns, not a view through the wall. Ask the investigator to identify the location, relevant conditions and meaning of an image used in the report.

Request a normal photograph of the same area where helpful. Do not compare two thermal pictures solely by their colours; ask the professional whether their settings and conditions make that comparison valid.

Keep originals and an orderly sequence

Retain original files and make annotated copies when needed. Separate images taken before investigation, during authorised access and after repair. Keep unrelated personal photographs out of the shared folder and send only what is relevant to the agreed enquiry.

For an Exact Source callback, include the Marlow postcode and a small, captioned selection that explains the problem. Ask how professional photographs will be referenced in the written findings. An organised record helps a later repairer understand the evidence without relying on the memory of someone who attended the first visit.

Further reading

Prepared with AI assistance using the sources listed above. General information cannot diagnose an individual property. Contact us to discuss your circumstances.

Would you like to talk it through?

Tell us what you have noticed and request a callback for further information.

Find out more — request a callback