Thermal Imaging & Infrared Home Inspection in Detroit, MI

What Thermal Imaging Detects

Infrared cameras measure surface temperature variations across a building's components. Because different materials — and different conditions like moisture or missing insulation — have different thermal properties, an experienced inspector can use these temperature patterns to identify a wide range of hidden defects that would be completely invisible to the naked eye.

Moisture and Water Intrusion

Water has a different thermal signature than dry building materials. As moisture evaporates, it cools the surface — creating a distinct cold spot on an infrared image even when the surface looks perfectly dry to the eye. IR cameras identify areas where moisture is present behind walls, under flooring, or in ceilings — from roof leaks, plumbing leaks, or exterior water intrusion — before visible damage like staining, warping, or mold growth has appeared. In an older Detroit home where a cosmetic refresh may have been done before listing, this is an invaluable capability.

Insulation Gaps and Voids

Infrared shows exactly where insulation is missing, compressed, or has settled out of position. In Michigan's winters, every gap in the building envelope translates directly to higher heating costs and reduced comfort. Thermal imaging is particularly valuable for evaluating insulation in attics, rim joists (the band of framing between the foundation and the first floor — one of the most common insulation weak points in older homes), and areas of older home additions where new and original construction meet. Many Detroit-area homes have additions from the 1950s through 1980s where insulation continuity was never properly addressed.

Electrical Issues

Overloaded circuits, failing breakers, and loose or improperly made electrical connections all generate heat. An overloaded circuit carrying more current than it's rated for will show as a warm spot in an electrical panel. A loose neutral connection — one of the more dangerous and common electrical defects — creates resistance and heat at the connection point. IR cameras can identify these hotspots in electrical panels and wiring before they cause a fire. This is a capability that simply doesn't exist in standard visual-only inspection.

HVAC Duct Leaks

Conditioned air escaping through leaky ductwork shows up clearly on thermal imaging — the escaping air creates temperature anomalies along duct runs in unconditioned spaces like attics, crawlspaces, and wall cavities. The US Department of Energy estimates that the average home loses 20–30% of conditioned air through duct leakage. Thermal imaging makes it easy to locate exactly where leaks are occurring, which helps HVAC contractors target repairs efficiently. For Detroit homeowners facing $200–$400 monthly heating bills, duct sealing identified through thermal imaging can represent a significant return on investment.

Radiant Heat System Assessment

For homes with in-floor radiant heating systems — more common in custom-built and higher-end Southeast Michigan homes — IR imaging maps exactly where heat is flowing through the floor and identifies failed or blocked zones. A radiant zone that has stopped working may not be obvious any other way until temperatures drop and one room is noticeably colder than others.

Pest Activity

In some cases, the heat generated by large active insect colonies — carpenter ants, termites, or large wasp nests within walls — is detectable via thermal imaging. This is not a primary use of the technology, but it is an additional data point that has led to pest discoveries in the course of IR inspections.

How a Thermal Imaging Inspection Works

Infrared inspection is a systematic process. Understanding how it works helps you appreciate both its power and its appropriate limitations.

Temperature Differential is Essential

Thermal imaging requires a meaningful temperature differential between the interior and exterior of the home — ideally at least 10°F — to produce useful results. When there's a sufficient differential, heat moving through walls, floors, and ceilings creates the temperature patterns that reveal insulation gaps and moisture. Michigan's climate provides this naturally from October through April, making the state's heating season the ideal window for thermal inspections. Summer scans are less effective for insulation evaluation in Michigan, though electrical and moisture inspections can still yield useful results year-round.

The Inspection Process

PPT Inspections scans each room systematically — walls, ceilings, floors, electrical panels, and HVAC registers. We move through the home methodically, capturing thermal images of any area that shows a temperature anomaly worth documenting. The process typically adds 30–60 minutes to a standard home inspection, depending on home size.

• Every anomaly is photographed with both a standard camera image and a thermal image side by side
• The paired images make it clear exactly where each anomaly is located within the home
• Electrical panel interiors are scanned for hotspots at breakers, bus bars, and connections
• HVAC registers and duct runs in accessible locations are evaluated for temperature consistency
• Exterior walls are scanned from interior for insulation continuity
• Attic hatch areas and rim joists receive particular attention as common insulation weak points

Interpreting the Results

The camera produces data — the inspector provides interpretation. PPT Inspections distinguishes between thermal anomalies that are definitively problematic (active moisture, clear insulation voids, electrical hotspots above threshold temperatures), those that warrant further investigation (ambiguous patterns that could indicate a problem or could have an innocuous explanation), and normal thermal variation that does not represent a defect. This distinction matters enormously — an inexperienced user of thermal imaging equipment can generate a report full of alarming-looking images that turn out to be meaningless.

Your Report

Thermal imaging findings are integrated into your full inspection report. Each finding includes the paired standard and IR photographs, a description of what the thermal pattern indicates, and a recommendation — whether that's calling a plumber, an HVAC contractor, an electrician, or simply monitoring a condition at the next inspection. You'll receive your complete report within 24–48 hours of the inspection.