Boiler topped up for weeks in a rented house
The property
A newer detached house at the village edge, let to a family who had just arrived. Radiator pipes cross under the landing floorboards.
The problem
Thinking it normal, the family topped up the boiler every few days. Then a brown patch spread across the kitchen ceiling below the landing.
How we found it
No leak sealer had gone in. With the upstairs radiators valved off, the gauge held. Once warm, the landing glowed in one patch on the thermal camera; tracer gas agreed.
The outcome
The landlord had our photographs of the marked joint and accepted our separate repair quote. One floorboard came up, and the joint was remade.