Why one cold spot ruins a treatment
Bed bugs and their eggs die at +56°C — but only if every void in the room reaches that temperature for long enough. Miss one corner of the wardrobe or one channel behind the radiator and a single fertilised female restarts the infestation in two weeks.
How thermal imaging changes the job
We sweep the room continuously with a FLIR thermal camera while the heaters run. Cold spots show up as dark patches against the orange and red of treated surfaces, and we direct fans or supplementary heat exactly where it's needed.
A Hampstead NW3 mansion block in practice
This particular NW3 flat had thick plaster walls, original parquet flooring and deep built-in wardrobes — exactly the kind of property that defeats spray-only treatments. Thermal imaging let us push heat into the wardrobe interiors until the rear panels read above lethal temperature.
What this means for your guarantee
We only sign off when the camera and probes agree the room has held above 56°C for the full required window. That's the foundation of our written 100% kill guarantee.
Call 0204 569 0701 for thermal-monitored heat treatment in Hampstead NW3 and across London.