Can Infrared Scans Find Hidden Termite Damage?
Last updated October 25, 2026
The short answer
How Infrared Scans Work
Infrared cameras measure surface temperatures and show variations as color images. Termite activity can create subtle warmth or moisture in wood, which may show up as a temperature difference. However, the scan only points to areas that need closer inspection; it doesn't confirm termites are present.
Other issues like water leaks, missing insulation, or electrical heat can produce similar patterns. So an infrared scan is a screening tool, not a final answer. The pros use it to narrow down where to look, then verify with physical checks or moisture meters.
Limitations of Infrared Detection
Infrared scans cannot see through solid wood or drywall. They only read surface temperatures, so deep or dormant termite colonies may not show up at all. Also, termites don't always generate enough heat to be noticeable, especially when the infestation is small or in a cool area.
Scanning conditions matter too. Direct sunlight, drafts, or recent rain can affect readings. For that reason, a scan alone can miss active colonies. The pros combine infrared with other methods, such as tapping, probing, or using acoustic devices, to get a fuller picture.
- Only shows surface temperature differences
- Cannot detect termites behind thick materials
- May confuse moisture from leaks with termite activity
- Sensible in controlled indoor conditions
- Requires trained interpretation to avoid false positives
When Infrared Scans Help
Infrared scans are most useful during a pre-purchase home inspection or when you suspect termites but see no visible signs. If you notice mud tubes, damaged wood, or discarded wings, a scan can help map the extent of the problem. It can also identify areas where moisture buildup might attract termites in the future.
If you live in Lakewood, the mild marine climate with wet winters and dry summers can make moisture issues more likely, which in turn can encourage termite activity. An infrared scan can help spot damp spots that need attention, but it's not a substitute for a thorough pest inspection.
What to Do If You Suspect Termites
If you suspect termite damage, act quickly to limit further harm. Look for signs like hollow-sounding wood, blistered paint, or small piles of wings. Do not disturb the area, as that can scatter the termites. Contact a pest control professional who can confirm the presence and suggest treatment options.
For water damage that may be related, such as leaks that create moisture, a water damage inspection can help identify the source. The pros can assess structural issues and guide you on drying and repairs. Combined with termite treatment, you can protect your home more effectively.
Costs and Professional Help
The cost of an infrared scan varies widely, often between $200 and $500 for a typical home, but it depends on the size of the property, the number of rooms scanned, and local rates. Some pest control services include a basic scan in an inspection package, while others charge separately.
For a thorough evaluation, consider hiring a professional who uses both infrared and direct inspection methods. The pros can also check for water damage that might complicate the situation. If you're dealing with significant structural issues, a water damage restoration service may be needed after termite treatment.
Policies vary, and your insurer decides what is covered.
- Scan cost often depends on home size and location
- Combined inspections give more accurate results
- Water damage repairs may be separate
- Ask about what the scan includes before booking
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Call Now (253) 453-4973Frequently asked questions
Can infrared scans detect termites in walls?
They can detect temperature differences that may indicate termite activity, but they cannot see termites directly. Walls can hide colonies, and a scan may show a warm spot. The pros confirm with physical probes or moisture meters for a definitive answer.
How accurate are infrared scans for termites?
Accuracy depends on the size of the infestation, the depth of the colony, and the conditions during the scan. Infrared is a useful screening tool but not 100% reliable. A trained professional can interpret the images, but false positives and misses are possible.
Should I get an infrared scan before buying a home?
An infrared scan can be a valuable part of a home inspection, especially if you're concerned about hidden damage. It can reveal moisture issues that might attract termites. However, it's not a substitute for a termite inspection by a pest professional.