Infrared window supply and installation services

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Infrared Window Installation Services UK & Worldwide

If you need infrared window advice, procurement and retrofitting services of the leading infrared window manufacturers, then look no further than Geo Therm Ltd.’s wealth of documented experience.  Based in the UK, our team pride themselves on being able to provide supporting services across the globe, to all industrial sectors.  Improving safety initiatives and periodic maintenance needs and practices, to obtain the safest visibility means (line of sight) into vital energised equipment utilising infrared windows brands such as IRISS, Fluke and CorDEX.  For more information, contact our team of service engineer and find out how our team can support you today with the best product advice to meet your inspection needs.

Industrial, Maritime and Offshore Inspections Made Safer Using Infrared Windows

Monitoring and diagnosing the condition of electro-mechanical system installations and components using our thermal imaging ensures failing equipment is identified before a power outage.  In vital energised equipment invariable equipment requires a safety turn off and lock-out requirement.  Retrofitting infrared windows during a non-productive maintenance period, ensures working assets can be checked without the need to shut a system down.  

What is an Infrared Window Inspection?

An Infrared Inspection Window is a window that is used to separate environments of differing pressures or temperatures while allowing light energy at a specified electromagnetic wavelength to pass between the two environments. IR Windows are also called viewports or viewing panes and must meet the strength and environmental requirements for the type of equipment in which they are fitted. The Windows must also be compatible with the infrared equipment being used. The Windows can be various shapes and sizes (square, round, rectangular or custom). IR Windows are an inspection point that is designed to allow infrared radiation to transmit to the outside environment so that a data point can be recorded using a thermal camera. Infrared inspection windows permit a safe and permanent viewing access into energised electrical equipment without disrupting operations.

Infrared Window Testing & Inspections

You might be wondering what infrared window testing enables? When you choose Geo Therm Ltd for Infrared Window Testing there are a number of things our surveys can show, including;

  1. Collection of real-time, condition status data on critical electrical systems and components under full load using the window without opening panels.
  2. Mitigates the risk of injury or death of electrical workers who perform these inspections because the window maintains an enclosed and guarded condition, so personnel can perform temperature readings, thermal imaging and visual inspection without exposure to energized compartments.
  3. A comprehensive, safe and intelligent protocol be designed and used for performing essential energized inspections on electrical equipment.

IR Windows are one example of an Electrical Maintenance Safety Device [EMSD] that allows safe access for a thermographer to inspect energized electrical equipment. A previous article discussed EMSDs and why they are important in today’s environment.

Specifically developed for infrared and visual inspections, we sell, fit and utilise Fluke, CorDEX, LumaSense (formally Mikron) and IRISS infrared windows. The units are typically made of a steel or an aluminium ring with a transparent crystal lens. Installation allows hot-spot capture whilst maintaining enclosure rating. Infrared inspection windows are easily fitted into many types of electrical equipment such as switchboards, switchgear, transformers, MCC’s and generator housings. The benefits include:

  • Compliance with NFPA 70E requirement for visual and infrared verification of energized electrical equipment, without the need to open covers and become exposed to energized equipment and the potential of arc-flash incidents.
  • Inspection windows are low cost and simple to install.
  • Fitting does not raise the risk of creating an electrical hazard, instead they eliminate the typical high-risk behaviours that can create an arc flash incident to occur.
  • The infrared inspection windows provide an easy way for companies and personnel to comply with regulatory (OSHA/CSA) and insurance mandates, to proactively protect workers by reducing electrocution and arc-flash risk.
  • Infrared inspection windows meet all relevant UL, CSA, IEC, and IEEE standards and are tested by approved agencies such as UL, KEMA, and TUV. Tested samples have withstood HV 11kVA+ arcs, vibration, drop and extreme humidity tests and have (where stated) a lifetime warranty against manufacturer defects.
  • Retro-fitting infrared inspection windows eliminate the high‐risk behaviours and arc–flash triggering events involved with open‐panel inspections.
  • Infrared inspections are able to be completed at peak loading times on all switchgear types and allows for one thermographer to complete the survey, thus reducing the traditional high manpower costs associated with live IR inspections.
  • Retro-fitting infrared inspection windows allows the inspection of previously uninspected equipment to be achieved, permitting the inspection of critical systems more frequently, with minimal paperwork as systems remain locked.
  • Monitor systems which is suspected to fail, whilst maintaining safety of personnel
  • Free up critical personnel who can be utilized elsewhere rather than helping to remove and reinstalling panel covers.
  • Save time and money. Eliminate over 90% of the time involved with standard IR inspections.

Due to the nature of electrical switchgear, 90% of components that an electrician or thermographer wants to inspect are normally locked behind bolted panel covers, cabinet doors with switched interlocks, making it dangerous to safely remove and routinely inspect live switchgear during live PM assessments.

Safe working practices outlined in NFPA 70E have led to the development of retro-fitting infrared windows, which are now an approved method for live visual and infrared inspections. Geo Therm Ltd will provide the correct IR window, install it and provide an IR inspection for your electrical equipment needs.


What We Do

Innovative and dynamic inspections and maintenance solutions


We are EEEGR members, providing professional inspection services to support the renewable energy sectors, assisting clients to comply with periodic maintenance requirements, commissioning needs and or supply equipment whether it’s for onshore or offshore needs. See our full renewable inspection services.


We are a Lloyds Register and American Bureau of Shipping approved service supplier, aspiring to meet their level of service excellence with every inspection, ensuring your vessel complies with the PM maintenance regime, Class or P&I Club audit and commissioning prerequisite. See our full Marine Inspection Service.


Geo Therm Ltd are Associate members of the International Association of Drilling Contractors (IADC), American Bureau of Shipping (ABS) recognised specialist and Lloyds Register (LR) marine service supplier. Working in the industry for decades we have built a solid reputation for supporting all offshore inspections.


Geo Therm Ltd are focused on working with every client to limit risks, improve equipment availability and reliability. We offer our independent third party services to ensure compliance with H&S and insurance requirements. We offer LV and HV asset maintenance services

Infrared Inspection

Regularly perform safe visual and thermal inspections into vital energised electrical assets without service interruption. Procurement and professional installation services available to vastly improve site safety, with ROI achieved after the first few inspections.

For Infrared Window Inspections, Choose Geo Therm Ltd

As a professional and recognised leading infrared window survey company, we have an outstanding track record of delivering the highest quality inspections locally and worldwide.

Our team provides invaluable and impartial advice, immediately relaying pertinent IR information in real-time for a variety of applications, whether it’s in the renewables market, maritime or super yacht market, the oil and gas industry and or domestic dwellings.

Hence, should you be searching for ‘infrared window testing companies’, be sure to call our team at Geo Therm Ltd today.



Clients statements testifying our qualification

''What you have managed to achieve is an excellent improvement for us.''
S. Speirs.
Stena Elec Supervisor
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