Where photographs genuinely help
Periodic work is the clearest case. Carpet extraction, floor treatment, high-level cleaning and external work are expensive, infrequent and invisible once complete, which makes them the most disputed items in any arrangement. A before and after image with a date resolves the question permanently at a cost of about thirty seconds. Photographs also help where a periodic task is performed over several nights, since the record shows which areas were completed on which visit rather than presenting the work as a single event.
Damage and pre-existing condition are the second case. A mark noticed on arrival, photographed and reported, cannot later be attributed to the cleaning shift. Exceptions are the third: an image attached to a corrective action removes any ambiguity about which item is meant and usually shortens the discussion about whether it has been resolved. It also prevents the situation where two people are describing different marks in the same corridor and neither realises it.
