Kitchen ceiling under an upstairs flat's toilet
The property
An Edwardian house split into a ground floor flat and an upper flat, the upper bathroom fitted into a former bedroom above the lower kitchen.
The problem
A stain on the kitchen ceiling kept widening even on days nobody upstairs had used the bathroom, and the managing agent wanted the cause proved.
How we found it
Moisture readings mapped the stain from below. Upstairs, the cold pipes failed a pressure test, and the ground microphone on the floorboards picked up a hiss beside the toilet.
The outcome
A push-fit joint on the toilet feed had slipped apart under the boards. Our report, with readings from both flats, went to the managing agent who had booked.