Leak Detected with Thermal Imaging | Cascais

How a Thermal Imaging Camera Revealed a Hidden Ceiling Leak

Recently, we used a thermal imaging camera to locate a persistent leak in a bedroom that had been difficult to trace for months. Once the rain started, the camera identified a clear cold line where water was entering, followed by a large circular cold patch showing where moisture had pooled inside the ceiling cavity.

Because this apartment is on the sixth floor, the issue wasn’t visible from the ground. Before the rain, we had already used our drone to inspect the roof and identify a possible weak point where water could enter. Once rainfall began, the thermal camera confirmed the exact point of water ingress, validating our earlier inspection.

Drone + Thermal Imaging = Precise Leak Detection

By combining drone roof inspection with thermal detection, we pinpointed the source precisely — between two roofing sheets where expanding foam had failed. This allowed us to confirm our findings and give the client a clear, visual report.

During the scan, we also identified another cold area in a ceiling corner. No water was visible yet, but the thermal signature suggested it could become a future leak. Early detection like this prevents costly damage to internal cupboards and stops mold growth before it starts.

This case shows why thermal imaging inspections are invaluable for both buyers and homeowners wanting to prevent long-term property damage.

Additional Inspection Findings

Beyond leak detection, our home inspections also include:

• Electrical testing

• Water pressure testing

• Moisture and damp analysis

• Structural and safety checks

Frequently Asked Questions

Q: Can a thermal imaging camera actually see water leaks?

A: Yes. Moisture cools surfaces as it evaporates, creating a clear thermal pattern that makes leaks visible without damaging walls or ceilings.

Q: Do I need rain to detect a roof leak?

A: Ideally, yes. The temperature difference between wet and dry areas is most visible after rainfall.

Q: How accurate is a drone roof inspection?

A: Very accurate. High-resolution drone photos reveal cracks, gaps, damaged flashing, and other issues.

Q: What does a thermal imaging inspection cost in Cascais?

A: Prices vary by property size, but a single inspection is far cheaper than repairing ceiling and wall damage later.

Q: Can this prevent future leaks?

A: Absolutely. Early detection helps avoid major damage, mold growth, and unnecessary repair costs.

Helping homeowners and buyers in Cascais with reliable, professional inspections.Drone and thermal imaging technology pinpoint the precise leak location between roofing sheets, where a failed sealant permitted water intrusion, offering clear evidence for effective repair planning.

"On Time. Every Time.

Edge of roof viewed with drone which would not have been seen by eye without considerable danger.