TES Compliance provides non-invasive electrical thermal imaging surveys carried out by PCN qualified, BINDT accredited thermographers. Identifying hidden faults in electrical installations before they become a serious risk, with a full written report and annotated thermal images provided on completion.
























Thermal imaging is a non-invasive method of carrying out an electrical thermographic survey without the need to isolate circuits or shut down equipment, making it one of the least disruptive forms of electrical safety assessment available. Our PCN qualified thermographers attend your premises at a pre-agreed time, using specialist infrared cameras to scan electrical panels, distribution boards, cables and connections throughout your installation. The camera detects heat radiation invisible to the naked eye and produces a detailed thermal image, which is then analysed to identify hotspots caused by loose connections, overloading, unbalanced phase loading or failing components.
According to MHCLG data for 2024/25, electrical distribution faults were the single largest identifiable cause of workplace fires in England, responsible for approximately 18% of all workplace fire, 2,126 incidents in a single year. Electrical thermal testing of this kind identifies those faults before they develop into something more serious.
Unlike a standard EICR, thermographic scanning can be carried out under full load with no interruption to your operations. Every area surveyed is fully documented and on completion you receive a comprehensive written report containing annotated thermal images, fault classifications and clear recommendations for any remedial action required.
Our thermographers hold PCN Level 1 or Level 2 qualifications and are accredited by the British Institute of Non-Destructive Testing (BINDT). Every electrical thermal imaging survey is carried out by engineers qualified and recognised to do so, producing reports accepted by insurers, facilities managers and health and safety auditors.
Electrical infrared scanning requires no isolation of equipment and no shutdown of circuits. Your operations continue uninterrupted throughout the entire survey, making thermographic testing particularly suited to data centres, hospitals, factories and other environments where downtime is not an option.
On completion you receive a comprehensive thermographic survey report containing annotated thermal images, fault classifications and clear remedial recommendations. The report is structured to meet insurer requirements and is suitable for submission alongside your electrical installation condition report.
TES Compliance provides audited electrical thermographic survey reports both across the UK and internationally. Whether you require a single site visit or a rolling programme across multiple locations, our qualified thermographers are ready to assist.

A thermographer is a qualified specialist trained to carry out thermal imaging surveys using infrared camera equipment and advanced analytical software. Understanding how the process works helps explain why it has become an essential part of planned preventative maintenance programmes for commercial and industrial properties across the UK.
An electrical thermal imaging survey uses a specialist infrared camera to detect heat radiation emitted by electrical components, cables and connections. The camera converts this data into a visible thermal image which is then analysed to identify hotspots that would be invisible to the naked eye and undetectable through conventional testing methods such as a fixed wire test. Loose connections, overloading, unbalanced phase loading and failing components all generate excess heat before they cause visible damage or complete failure, which is precisely what electrical heat testing of this kind is designed to detect.
Unlike conventional EET and PAT testing or fixed wire inspection, an electrical thermographic survey does not require circuits to be isolated or equipment to be shut down, meaning your operations can continue entirely uninterrupted throughout. Fire and rescue services across the UK recorded 4,634 callouts to electrical fires in businesses over a three-year period, many linked to faulty equipment and installations that routine electrical thermal testing could have identified earlier. A regular thermographic survey allows issues to be identified and remedied at a time of your choosing, rather than in response to an emergency.
Many commercial insurers now require annual electrical thermographic surveys as a condition of cover, particularly for properties with high energy demands or significant electrical infrastructure. A certified thermographic inspection report provides documented evidence of due diligence and is accepted by major insurers across the UK.
Continuous uptime is critical. Electrical panel infrared scanning identifies developing faults within distribution boards and connections without any need to isolate equipment or interrupt operations. TES Compliance has carried out thermographic surveys at Iron Mountain’s data centre and similar critical infrastructure sites.
Shutting down power in a healthcare environment is rarely possible. An electrical thermal imaging survey allows a full assessment of your installation to be carried out safely and without disruption to essential services.
High-demand electrical installations in industrial environments are particularly susceptible to overloading and component failure. Electrical infrared scanning identifies developing issues before they result in costly downtime or safety incidents. Our engineers have carried out thermographic surveys at the BMW Plant and Makita UK among other major industrial sites.
Electrical thermographic testing can highlight components behaving abnormally under normal load, identifying potential failures that conventional testing would be unlikely to detect. TES Compliance has delivered surveys across hospitality, retail and corporate premises including Bvlgari Hotel, Claridge’s and The Connaught, and Leon Restaurants.
Regular electrical thermal testing is an essential component of any planned preventative maintenance strategy, keeping your electrical installation compliant with the duties placed on employers and building owners under the Electricity at Work Regulations 1989 and the Health and Safety at Work Act 1974. Annual surveys are the widely recommended minimum for commercial premises; higher-risk environments benefit from six-monthly inspections.
High electrical loads, complex distribution systems and around-the-clock operations make airports and transport hubs particularly suited to electrical thermographic surveying. With no tolerance for power interruption, infrared scanning of electrical panels and distribution boards can be carried out live without any disruption to operations.
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A thermographer is a qualified specialist trained to carry out thermal imaging surveys using infrared camera equipment and advanced analytical software. At TES Compliance our thermographers hold PCN Level 1 or Level 2 qualifications and are accredited by BINDT, the British Institute of Non-Destructive Testing, ensuring every electrical thermographic survey is carried out to a professionally recognised and auditable standard.
Thermographic scanning is the process of using a specialist infrared camera to detect heat radiation emitted by electrical components, cables and connections. The camera converts this data into a thermal image which is then analysed to identify hotspots. Loose connections, overloading, unbalanced phase loading or failing components appear clearly within the image, allowing the thermographer to identify and document faults that would be invisible through conventional electrical thermal testing methods.
A fixed wire test such as an EICR requires circuits to be isolated and equipment to be shut down. An electrical thermographic survey requires no isolation whatsoever, meaning operations continue entirely uninterrupted throughout. This makes thermal imaging particularly valuable in critical environments where downtime carries significant operational or financial consequences. The two are complementary rather than interchangeable, and many clients schedule both as part of a complete electrical testing and inspection programme.
Annual electrical thermographic surveys are widely recommended as the minimum for commercial and industrial premises. Higher-risk environments such as data centres, manufacturing facilities and healthcare buildings benefit from surveys every six months. Many commercial insurers now specify a minimum frequency as a condition of cover. Your thermographer will advise on the most appropriate programme for your specific site and sector. Your thermographer will advise on the most appropriate programme for your specific site and sector. You can also read more in our guide on why consider a thermographic survey.
Yes. TES Compliance provides audited thermographic survey reports both across the UK and internationally. Whether you require a one-off survey of a single site or a scheduled programme across multiple locations, our qualified thermographers deliver to the same standard regardless of location.
Electrical faults are the single largest identifiable cause of workplace fires in England. Don’t leave your installation to chance. Our PCN qualified thermographers are ready to carry out your electrical thermal imaging survey, wherever you are in the UK.
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