What is Thermography?
Thermography is the art and science of taking and studying thermographic images. These images show very minute differences in heat radiating from objects. Basically, it shows us hot and cold spots that with proper training we can interpret as useful information.
In a home inspection, that means scanning the structure with an infrared camera to find problems that are completely or nearly invisible to the naked eye — water where it shouldn’t be, insulation that isn’t doing its job, and electrical components running hotter than they should. Panther Inspections includes a thermographic scan on every inspection at no additional cost.
What can thermal imaging find in a home inspection?
An infrared camera doesn’t see water, insulation, or termites directly — it sees temperature. Wet material holds and releases heat differently than dry material around it, a gap in insulation lets conditioned air bleed through, and a loose electrical connection generates heat as it resists current. Each of those shows up as a pattern the inspector is trained to read. A ceiling stain that hasn’t bled through the paint yet, a duct disconnected in an attic, or a breaker running hot behind a closed panel cover are all findable this way, and none of them are visible on a normal walkthrough.
Here is what the scan is actually looking for, and what each pattern usually indicates:
| Problem | What the camera sees | Why it matters |
|---|---|---|
| Hidden roof leak | A cool, irregular patch on a ceiling or in the attic decking | Water is already entering. Found early, it’s a roof repair rather than a ceiling replacement and a mold remediation |
| Plumbing leak in a wall or slab | A cool plume spreading from a fixture, riser, or floor line | Slow leaks can run for months behind finishes before staining appears |
| Missing or thin insulation | Warm or cool streaks and voids across exterior walls and ceilings | Directly drives heating and cooling bills, and is cheap to correct in an attic |
| Overheating electrical component | A bright hot spot at a breaker, lug, or fixture | Loose or overloaded connections are a fire risk, and the panel cover hides them completely |
| A/C duct leak or coil problem | Cold air escaping along a duct run, or an unevenly cooled coil | You pay to cool the attic instead of the house |
| Failed window seal | An abnormal thermal pattern across the glass unit | The window has lost its insulating value and will need replacing |
| Termite or ant nest inside a wall | A localized warm mass with no other heat source | Confirms activity in a concealed space before any damage is visible |
What thermography cannot do
Thermal imaging is a genuinely useful tool, not a magic one, and it’s worth being clear about the limits before you rely on it:
- It is not x-ray. The camera reads surface temperature. It cannot see through walls, only detect the thermal effect of something behind them reaching the surface.
- It can’t see through anything infrared waves won’t pass through. Glass, standing water, and shiny or reflective surfaces will all defeat it.
- It needs a temperature difference to work. Finding missing insulation requires functioning air conditioning or heating inside the structure. On a mild day with the system off, there is nothing for the camera to contrast.
- It identifies anomalies, not causes. A cool patch tells the inspector where to look harder. Confirming what’s behind it can require further investigation by a qualified contractor.
- It cannot see inaccessible areas. If a wall is blocked by stored belongings or a room is locked, the camera doesn’t help.
Anyone offering thermal imaging as a guarantee that a house has no hidden leaks is overselling it. What it reliably does is dramatically widen what an inspector can catch in the time available.
Is thermal imaging included in a Panther Inspections inspection?
Yes — at no additional cost, on every inspection. That covers one interior scan and one exterior scan of the structure. Many inspectors in the Austin area charge separately for thermography or don’t offer it at all; it has been standard on our base inspection for years because the problems it finds are exactly the expensive ones.
The full list of what’s covered in a base inspection, including the thermographic scan, is on our what’s inspected page. Thermal imaging is also available as part of a commercial property inspection.