
Thermal Imaging Leak Detection
Non-destructive thermal roof surveys for hidden moisture and leak investigation
Surveyroof provides thermal imaging roof surveys for commercial and industrial buildings, helping identify saturated insulation, entrapped moisture and areas of concern within flat roof systems.


Find hidden roof issues before they become visible damage
Not every roof problem can be seen from the surface.
Moisture can become trapped within insulation or the roof build-up long before there are obvious signs inside the building. By the time staining, dripping or internal damage appears, the affected area may already have spread.
Thermal imaging helps identify temperature differences that may indicate trapped moisture or saturated insulation.
This gives you a better understanding of the roof condition and helps direct further investigation, repairs or maintenance planning.
A Practical Tool For Predictive Maintenance
Roof maintenance is much easier to manage when you understand where the risks are. Thermal imaging can help identify areas that may need attention before they develop into larger failures. For building owners and facility managers, this can support better planning, better budgeting and fewer unexpected roof costs.

High Quality Thermal Imaging Equipment
Surveyroof uses professional thermal imaging equipment to support accurate roof assessment.
Our thermographers use high-resolution thermal imaging cameras designed to detect important temperature variations across roof areas. This helps provide clearer information and supports more reliable reporting.
The survey findings can then be used alongside other investigation methods where required, including electronic leak detection or moisture mapping.

Independent Reporting You Can Act On
Surveyroof is independent. We do not carry out roofing repairs.
Our role is to inspect, test and report clearly. That means you receive evidence-led information about the condition of your roof, without pressure to approve repair work from the same company.
The report can be shared with contractors, consultants, insurers, property teams or internal decision-makers to support the next step.
What Thermal Imaging Can Help Identify
Thermal imaging is particularly useful when a roof issue may not be immediately visible through standard inspection alone.
A Thermal Imaging Roof Survey Can Help With:-
locating areas of suspected trapped moisture
Assessing saturated insulation
Supporting roof leak investigations
Identifying areas for further testing
Reducing unnecessary exploratory work
Planning targeted roof repairs
Supporting predictive maintenance
Assessing flat roof condition over larger areas
Why Thermal Imaging Can Save Time & Cost
Hidden Moisture
When moisture is hidden, roof repairs quickly become guesswork. Teams may fix the wrong area, miss the true source or replace more of the roof than needed.
Sharper Focus
Thermal imaging helps narrow the focus, pinpointing where moisture is likely present so investigation and repairs target the areas that need attention.
Targeted Repairs
By identifying areas that require attention, a thermal imaging survey reduces unnecessary disruption and supports more targeted repair strategies.
Commercial Value
For commercial buildings, this makes a real difference to cost, planning and operational continuity, helping avoid overspend and unexpected downtime.
Not sure which applies? We’ll recommend the right method before anything is booked.
Call 0845 257 7663
Our Roof Survey & Leak Detection Services

Electronic Leak Detection
Non-destructive moisture mapping helps locate hidden moisture within the roof build-up and understand the extent of the problem. This supports targeted repairs and better maintenance decisions.

High Voltage Dry Test
A high-voltage integrity test carried out on dry, exposed membranes, identifying pinholes, punctures, discontinuities and workmanship defects across the membrane surface.

Earth Leakage Wet Test
Carried out in wet conditions during rainfall or after the test area has been wetted down. This method traces the direction of current flow back to the point where moisture is entering the membrane. That makes it the strongest choice when a leak is active and its source needs finding.

Scan-Map™ and EPDM Testing
A faster low voltage wet method, and the one that opens up membranes the others can’t reach. Conventional electronic testing relies on the membrane being non-conductive, which rules out EPDM entirely. Scan-Map™ tests it.

Membrane Condition Surveys
Independent electronic leak detection and integrity testing for flat roof and waterproofing membranes. Ideal for identifying breaches, pinholes, punctures, installation defects and membrane failures on new or existing roof systems.

Moisture Mapping
Non-destructive moisture mapping helps locate hidden moisture within the roof build-up and understand the extent of the problem. This supports targeted repairs and better maintenance decisions.

R.A.I.N.™ Roof Monitoring
R.A.I.N.™ is Surveyroof’s roof monitoring and early warning service framework, supporting continuous insight into roof condition using sensor-based monitoring technology. It helps detect moisture and roof incidents earlier, particularly where ongoing visibility is important.

Visual Condition Surveys
Detailed visual roof condition surveys with photographic reporting for industrial metal roofs, aluminium standing seam, pitched tiled roofs and other roof areas where a clear condition report is needed.

Roof Maintenance Programmes
Planned roof maintenance surveys designed to help extend roof life, reduce unplanned costs and identify issues before they develop into larger failures.

Pre Installation Solar Surveys
Planned roof maintenance surveys designed to help extend roof life, reduce unplanned costs and identify issues before they develop into larger failures.

Industrial Roof Surveys
Independent industrial roof surveys and inspections for factories, manufacturing plants, warehouses, industrial estates, processing facilities and logistics operators across the UK.

Commercial Roof Surveys
Independent commercial roof surveys and inspections across the UK for property owners, facilities managers, managing agents, retailers, hoteliers, logistics operators and solar installers.