Serving the Twin Cities Metro and surrounding area — including Wisconsin

Thermal Imaging

What is Thermal Imaging and How Does it Work?

Thermal (Infrared) imaging is an advanced non-destructive technology that allows a trained inspector to see things that aren’t necessarily visible to the naked eye. Thermal imaging is the use of a thermal camera to capture images, which show differences in surface temperatures. Since it only detects differences in temperature, it isn’t detecting moisture directly-which is why it’s necessary to further investigate differences with a moisture meter. Thermal Imaging does not guarantee to find every defect that may ever have existed. Temperature differences can indicate numerous items. Some items that we use the thermal cameras for are:

  • Moisture
  • Missing or defective insulation
  • HVAC problem areas
  • Source of heating/cooling losses (requires proper interior and exterior temperature difference)
  • Plumbing blockages
  • Roof leaks
  • Electrical issue


All Inspecta-Homes Inspectors carry a Flir thermal camera as a normal tool in their bag. The Inspector uses the camera when they decide it is necessary to do so just as they would any other tool.