Heating losing pressure in a newly bought townhouse
The property
A newer three-storey townhouse, its boiler on the top floor. Heating pipes run through the floor voids, above plasterboard ceilings and under carpet.
The problem
From their first week, the owners refilled the boiler to 1.5 bar most days. Nothing was stained, and the service papers mentioned no sealer.
How we found it
Shutting valves floor by floor left only the first floor losing pressure. Thermal imaging found a warm patch on the hall ceiling; tracer gas rose through the landing above.
The outcome
We marked and photographed the spot, so only a short piece of landing floor came up. The joint was repaired there and then, quoted separately.