A leak that has reached a ceiling has usually travelled some distance from where it started. Opening up at the stain is how a small claim becomes a large one — three holes later the source is still upstream and the reinstatement bill has trebled.
Thermal imaging, acoustic tracing and moisture mapping locate the source without demolition. The property gets opened once, in the right place.
Because leak detection sits between general maintenance and an insurance claim, the same investigation serves both: it tells a managing agent what needs repairing, and it gives an insurer the evidence a trace and access claim requires.