Most inspectors charge $100–$200 extra for thermal imaging. We include it on every single inspection at no additional charge — because in the Pacific Northwest's wet climate, it's not an optional upgrade. It changes what gets found.
The Pacific Northwest's wet climate creates a specific inspection challenge: moisture damage in Portland-area homes is often well-established before it becomes visible. A slow roof leak soaks insulation for months before it stains drywall. A failed window flashing wets wall framing for years before interior paint shows a bubble. A shower pan leaks into a subfloor for a decade before anyone notices a soft spot.
This is exactly what thermal imaging catches. An infrared camera detects temperature differentials at surfaces — and wet building materials hold and release heat differently than dry ones. That temperature difference is visible on the camera even when nothing is visible to the eye. In many cases, moisture findings on the infrared image are the only finding on the inspection. No staining, no smell, no indication from the disclosure form.
Other inspectors separate thermal imaging out as a paid add-on because the equipment costs thousands of dollars and requires real training to use correctly. We include it on every inspection because leaving it out in this climate means leaving findings on the table. That's not a thorough inspection. It's a partial one.
Annual rainfall in Portland, concentrated October through April — exactly when temperature differentials make thermal imaging most effective. The wettest season is also the best season for infrared.
The cost of addressing crawlspace moisture early versus after structural damage develops. Thermal imaging catches it early — before the framing is involved.
"The thermal camera showed moisture in a wall with no visible staining whatsoever. Turned out to be a slow shower pan leak that had been running for years. The seller didn't even know. That finding alone was worth far more than the inspection."
— Amanda T., North Portland (Google)These are the issues that appear on the thermal camera and nowhere else — invisible to visual inspection, absent from seller disclosures, and expensive when discovered after closing.
This is the most common and most consequential thermal finding in Portland-area homes. Wet building materials — insulation, drywall, framing, subfloor — hold heat differently than dry ones. That difference shows up as a temperature anomaly on the camera even when the surface looks completely normal.
We scan every exterior wall, every ceiling below a roof surface, every bathroom surround, and every area where plumbing runs through finished surfaces. In Portland's climate and housing stock, moisture findings on the infrared image are routine.
Electrical components that are failing, overloaded, or improperly connected generate heat before they fail. That heat is measurable with a thermal camera at the panel, at junction boxes, and at outlets and switches — well before any visible sign of a problem appears and long before a breaker trips or a connection arcs.
We scan every accessible electrical panel and document thermal anomalies in breakers, buss connections, and wiring. A breaker running significantly hotter than its neighbors is a finding that a visual inspection cannot make. The thermal camera makes it routine.
Insulation that has settled, been disturbed by pests or previous work, was never installed in certain cavities, or has been compressed to ineffectiveness shows as a temperature differential on exterior walls and ceilings during heating season. In Portland's energy-cost environment, missing insulation in a wall cavity is both a comfort problem and a real ongoing expense.
The infrared camera maps the thermal envelope of the home — showing exactly where the building is losing heat and where insulation is absent or failed. This information is useful for negotiation and for planning post-purchase improvements.
A roof leak that hasn't yet reached interior drywall is invisible to visual inspection. By the time it stains a ceiling, it's been present for weeks or months and has already soaked insulation, begun degrading roof sheathing, and — in many cases — started producing mold growth in the attic cavity. Thermal imaging catches the moisture front before it arrives at the drywall.
We scan ceilings throughout the home during the inspection and cross-reference findings with the physical attic inspection. Cold spots on the ceiling plane during heating season, or warm spots consistent with residual moisture, are documented with both infrared and standard photographs in the report.
Thermal imaging is most effective when it's used as a continuous tool throughout the inspection — not as a final pass at the end after the inspector has already formed conclusions. The camera informs the inspection as it happens, directing attention to anomalies that warrant follow-up investigation with a moisture meter, closer physical examination, or both.
When a thermal anomaly is identified, it's documented with two photographs: one infrared image showing the temperature differential, and one standard photograph showing the physical location. Both appear in the report with a plain-language explanation of what was observed and what follow-up is recommended.
This matters because a thermal image without context is easy to misinterpret. Cold spots on an exterior wall can indicate moisture, but they can also indicate missing insulation, a framing bay without insulation, or air infiltration from an exterior penetration. The interpretation requires judgment from someone who knows what they're looking at. The camera is a tool. It's the inspector who determines what it's showing.
Every accessible panel is scanned at the start of the inspection. Hot breakers, warm buss bars, and overloaded circuits are flagged immediately and verified with physical inspection of the wiring.
Ceiling surfaces are scanned before and during the attic inspection. Thermal anomalies on the ceiling direct attention to specific areas of the attic — where physical examination confirms or clarifies what the camera showed.
Thermal scanning of exterior walls identifies insulation voids, air infiltration at window and door frames, and moisture intrusion behind siding. Wall penetrations and transitions are given close attention.
Every bathroom surround, under every sink, and around every toilet base is scanned. Shower pan leaks, supply line slow leaks, and wax ring failures all produce thermal signatures before they produce visible damage.
Floor surfaces above the crawlspace and the crawlspace structure itself are scanned for moisture intrusion paths, cold spots indicating insulation failure, and plumbing leak signatures in the subfloor.
Every thermal anomaly is photographed with both the IR and standard camera. Both images appear in the report, side by side, with a clear explanation. You see exactly what was seen and what it likely means.
Not all thermal cameras are the same. Entry-level infrared cameras — the kind available for a few hundred dollars — have low resolution detectors and poor thermal sensitivity. They can identify large, dramatic temperature differentials, but they miss the subtle anomalies that matter most: a slow-developing moisture intrusion, a moderately overloaded circuit, the early stage of insulation failure in a wall cavity.
Professional-grade thermal cameras used in building inspection have significantly higher detector resolution and thermal sensitivity measured in fractions of a degree. The difference is real and shows up in what gets found. A camera that requires a 5-degree differential to register an anomaly misses findings that a camera sensitive to 0.05 degrees would catch clearly.
Beyond the equipment, interpretation matters as much as sensitivity. Thermal imaging is a tool that requires experience and judgment to use correctly. Anomalies have multiple possible causes. The inspector's knowledge of building systems, construction methods, and the specific housing stock in the Portland metro determines whether a camera reading becomes a useful finding or a false alarm.
Russ has used thermal imaging as a standard part of every inspection for over a decade — across more than 2,000 Oregon and Washington inspections. That experience is what makes the camera useful rather than just present.
Professional-grade thermal sensitivity identifies subtle temperature differentials that entry-level cameras miss entirely — including slow moisture intrusion and moderately overloaded circuits.
Every flagged finding is photographed with both the infrared camera and a standard camera. Both images appear in your report so the location and the thermal anomaly are unambiguous.
Thermal imaging has been a standard part of every Trusted Home Inspection since the beginning. More than 2,000 inspections with the camera in hand — not a service recently added to the menu.
Russ frames and finishes homes as a Licensed General Contractor. He knows where water goes when it enters a wall cavity because he's built those cavities. That context changes what the camera findings mean.
Most Portland-area inspectors treat thermal imaging as a premium upsell. Here's what that difference actually means for your inspection.
| What You're Comparing | Trusted Home Inspections | Most Competitors |
|---|---|---|
| Thermal imaging included | ✓ Every inspection, $0 extra | ✗ Add-on, typically $100–$200 |
| IR used throughout inspection | ✓ Integrated from start to finish | Often a final pass if included at all |
| Dual-image documentation | ✓ IR + standard photo, every finding | Inconsistent |
| Inspector's construction background | ✓ Licensed General Contractor, 12+ years | ✗ Rarely |
| Certified Master Inspector® | ✓ Top 1% of the industry | ✗ Fewer than 1% hold this designation |
A thorough inspector tells you what the tool is and what it isn't. Thermal imaging is powerful. It is not omniscient. Here's exactly what the limitations are.
Thermal imaging detects temperature differences at surfaces. It does not see through drywall or identify what is physically behind it. A temperature anomaly tells you something is different in that area — it does not tell you exactly what. That's what follow-up investigation is for.
Infrared imaging is most effective when there is at least a 15°F difference between interior and exterior temperatures. In Portland this means October through April is prime season. Summer inspections in mild weather may show fewer anomalies — not because the home has no issues, but because the physics of the camera require a temperature gradient to work.
Active or recent moisture is required to show on infrared. A leak that dried out completely months before the inspection may leave no thermal signature. This is why physical inspection of the attic and crawlspace — not just the camera — is essential. Dried moisture leaves staining and structural evidence that the camera won't catch but eyes will.
A cold spot on an exterior wall can indicate moisture, missing insulation, a framing bay without fill, or an air infiltration path. The camera identifies the anomaly. The inspector's knowledge and judgment determines the most likely cause and what follow-up is appropriate. Thermal imaging is not a diagnostic tool — it's an identification tool.
Thermal imaging complements careful visual inspection and moisture meter testing — it does not replace them. A moisture meter provides a quantitative reading that confirms or clarifies what the camera showed. Physical inspection of accessible spaces provides direct evidence the camera cannot capture. All three tools are part of how we inspect.
Thermal imaging assesses what it can see — finished surfaces. It cannot evaluate concealed structural members, pipes buried in concrete slabs, or conditions inside wall cavities without a temperature signature reaching the surface. These limitations are why crawlspace and attic physical entry is non-negotiable on every inspection, regardless of what the camera shows.
5.0 stars on Google and Yelp. These are the reviews that specifically mention thermal imaging findings.
Russ is extremely knowledgeable and personable. I have used his services several times. In addition to his extensive experience in home inspections, he also has a solid construction background, so he really knows what's what. Highly recommend!
My wife and I had an excellent experience with this home inspector and couldn't be more satisfied. From the very beginning, they were professional, punctual, and extremely thorough. They took the time to explain every part of the inspection in a way that was easy to understand and never rushed through any questions I had. This inspection gave me complete confidence in my home purchase.
We had an excellent experience working with Russ as our home inspector. He was professional, punctual, and extremely thorough throughout the entire process. Russ took the time to clearly explain his findings, answered all of our questions, and made sure we understood both the major concerns and the smaller details. His report was detailed, easy to follow, and delivered promptly. We felt confident moving forward thanks to his expertise.
I am a real estate agent in the Portland area that loves when my clients pick Russ, he is an incredible inspector. He has a non alarmist way of describing his findings that helps each person to learn and understand in a better way. I appreciate his expertise and also, his sense of humor!
Russ was a pleasure to work with throughout the home inspection process. He communicated clearly, arrived on time, and conducted a thorough and detailed inspection. Russ took the time to explain his findings, answered all of my questions, and was transparent and upfront about both minor issues and potential concerns. His professionalism and attention to detail gave me confidence in my home purchase decision.
Russ was very detailed and found out way more details that were missed by other inspectors. He is very knowledgeable and detail oriented! Will definitely go with him next time I need an inspection.
Every inspection in the Portland metro and SW Washington service area includes thermal imaging — no exceptions based on location, home size, or price point.