With thermography, you can quickly tackle facade leaks. We at Ultrices Leak Detection use a thermal imaging camera and infrared to make hidden water infiltration and moisture visible without any demolition work.
We scan masonry, plasterwork, cavity walls, insulation, window frames, expansion joints, lead flashing, sealant joints, penetrations, and the roof edge. This way, we locate the source of the leak, as well as thermal bridges and damp insulation.
With facade leakage thermography, you receive a report with images and advice regarding rainwater penetration, capillary moisture, and energy leaks. Read our 5 out of 5 Google reviews in facade thermography leakage results and book your research.
Table of contents
Facade leakage thermography explained
Facade leakage thermography involves the targeted detection of moisture infiltration and water penetration into the building envelope using infrared technology. With thermal imaging, we make invisible temperature differences visible, allowing you to see exactly where water is entering the facade through mortar joints, frame seams, or expansion joints. At Ultrices Leak Detection, we combine building physics with top-class infrared cameras to quickly locate the cause of facade leakage without any demolition or breaking work. Our team works nationwide for private and commercial clients and is available twenty-four hours a day with emergency service.
How infrared facade inspection works
A thermographic camera detects heat radiation and converts it into a thermal image. Wet masonry loses heat differently than dry masonry. This results in a recognizable thermal pattern. We work with cameras from FLIR Systems and Testo, apply measurement protocols from EN 13187 and ISO 6781, and refer to ASTM C1060 for interpretation. We correct for emissivity and reflection, create a controlled temperature difference between inside and outside where necessary, and verify the dew point conditions with a hygrometer. In this way, we separate thermal bridges from actual damp spots and unambiguously map capillary transport and driving rain.
Which causes of facade leakage we find with thermography
- Defective grouting: leached or cracked joints appear as irregular cooling zones with characteristic moisture patterns, often during heavy rain
- Leaking window frames and sealant joints: infiltration around wooden and aluminium window frames forms cold streaks in the thermal image that follow the path of the water
- Open weep holes or defective cavity sealing: unwanted air currents and moisture transport in the cavity wall become visible as vertical thermal streaks
- Cracking in masonry or concrete facades: fine cracks cause linear thermal anomalies that coincide with moisture penetration and efflorescence
- Clogged or missing flood barriersThermal accumulation around lintels and sills indicates failing details and transparent leak paths.

If you want to immediately delve into specific patterns that emerge under prolonged rain load, read on about our addressing facade dampness.
Our diagnostic protocol and step-by-step plan
- Intake and case review: we analyze your symptoms, photos, and weather history, and schedule a measurement at optimal temperature contrast
- Pre-inspection outside and inside: we assess facade orientation, detailing, material types, and record visible moisture damage
- Thermographic scan: we create high-resolution thermal images of the entire facade and critical connections with calibration on a reference panel
- Validation with additional measurements: we combine with contact temperature, surface moisture content, cavity endoscopy, and smoke detection of air leaks
- Analysis according to normative frameworks: interpretation according to EN 13187 and ISO 6781 and assessment against NEN 2778 for damp proofing in buildings
- Advice and report: you will receive a comprehensive expert report within three days including the cause, damage mitigation, and a sustainable repair plan
Leak detection process request
Thermographic techniques and measuring equipment
- High-resolution infrared facade scan: detailed images of joints, expansion joints, lintels, and roof edges capture subtle thermal anomalies
- Controlled thermal stimulation: where necessary, we create a mild temperature difference between inside and outside to make wet zones stand out more strongly
- Psychrometry and dew point control: we determine relative humidity and surface temperature to distinguish condensation from infiltration
- Cavity inspection and moisture measurement: endoscopy and capacitive measurement confirm thermal findings and quantify fluid
If you want to see what such an analysis looks like visually, check out our more about our infrared facade scan. If you prefer immediate action because you already see damage inside, choose Have facade leaks detected immediately with a specialist scan.
Results, reporting and insurance
You receive clear thermal images with annotations, a root cause analysis with building physics substantiation, and concrete repair advice for each detail. Our expert report is widely accepted by insurers and strengthens your file for coverage. We work in accordance with VCA VOL and NEN 3140 standards, deliver without disruptive demolition, operate on a no-cure-no-pay basis, and achieve a ninety-nine percent success rate. Thanks to our 24-hour service and emergency service, we are often on-site within one hour. With fifteen years of experience, nationwide coverage, and five out of five stars in Google Reviews, choosing Ultrices Leak Detection means choosing certainty and professionalism. Feel free to call or WhatsApp us at 085 2505 217 or email info@Ultriceslekdetectie.nl for quick advice.
When do you choose thermography for facade leakage?
- Recurring damp patches after rain: during driving rain and wind load, thermography makes the penetration routes in masonry and natural stone visible
- Unexplained mold or peeling paint: thermal images link local cooling to moisture load for targeted repair
- Renovation and delivery: quality control of new pointing, sealant joints, and waterproofing prevents subsequent damage and claims
- Monument and high-rise: non-destructive and safe from the ground floor or with a telephoto lens, often making scaffolding unnecessary
If your situation matches this and you want to take immediate steps, request your thermal facade inspection and Receive a free quote for thermography of your facade within 24 hours..
Frequently asked questions
How does thermography work for facade leaks and what do you see on a thermal image?
With infrared thermography, we make temperature differences in your facade visible. Moisture conducts heat differently than dry masonry, causing leak traces to appear as cooler patterns on the thermal images. We calibrate for emissivity, check the dew point, and track capillary moisture transport, allowing us to reliably identify anomalies caused by leaking sealant joints, weep holes, lead flashing, or a defective damp-proof course. We work according to building physics best practices and standards for building thermography such as ISO 6781, using professional FLIR thermal imaging cameras.
In practice, we combine IR images with moisture measurements and a visual facade scan for context. Consider an example where cold streaks under a window frame connection indicate a seepage point, while a cloudy pattern across the masonry is consistent with penetrating damp. You benefit from our fifteen years of experience, fast 24/7 service, and investigation without demolition or breaking, with a 99 percent success rate.
How reliable is thermographic facade inspection in rain and wind, and when is the best time to schedule it?
Thermography is most accurate when there is a sufficient temperature difference between the inside and outside. We aim for a delta T of roughly ten degrees, preferably in the early morning or evening, without bright sunlight. Rain sometimes helps to activate leak paths, but a soaking wet facade can cause reflections. Wind can disrupt cooling. Therefore, we focus on timing and take additional measurements to filter out noise.
For maximum certainty, we combine IR images with moisture measurements in the inner wall and, where necessary, a targeted spray test on the most suspicious zones. This way, we prove the cause instead of guessing. If you want to see how such a targeted rain simulation works, take a look. our approach with a spray test for facade leakageThanks to our nationwide emergency service, we are often at your door within an hour in case of an emergency.
How much does thermography for facade leaks cost and what exactly is included?
The investment depends on facade height, accessibility, and the number of facade surfaces to be inspected. You will receive a free quote with a fixed price per inspection within twenty-four hours. You are safe with our 100 percent risk-free promise and no-cure-no-pay policy. We are VCA VOL and NEN 3140 certified and are accustomed to liaising directly with insurers.
After the inspection, you will receive a comprehensive expert report within three days, including IR images, visual photos, measurement data, a clear cause analysis, and prioritized repair recommendations. This report has been prepared to facilitate submission to your insurance company. If you want to know your price quickly, request your quote immediately. cavity wall leak detection quote on. Our detection is non-destructive, for private and business use, with five out of five stars customer satisfaction.
How do you recognize the difference between penetrating damp and a cavity or frame leak using thermography?
Penetrating damp often manifests as diffuse, cooler clouds over the masonry that increase during rain and sometimes repeat within brick patterns. Causes include porous mortar, saturated brick, or an aged hydrophobic coating. On IR images, you do not see a clear starting point, but rather broad cold zones that dry out slowly after dry weather.
A cavity or window frame leak usually causes targeted cold streaks or droplet-shaped spots under an entry point, such as weep holes, expansion joints, leaky rainwater drains, a defective water barrier, or lead flashing. Wet cavity wall insulation manifests as sharp, cold spots that follow gravity. If you are unsure whether you are dealing with damp penetration through the facade, read on about detecting penetrating dampWe combine thermography with endoscopy, camera inspection, and moisture measurements for conclusive evidence.


