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Periodic Fixed Wire Inspections & Testing

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Periodic fixed wire inspections and testing of electrical installations (frequently referred to as fixed wire inspection and test) for every UK workplace is a statutory responsibility, and these responsibilities are covered by the UK’s 1989 Electricity at Work Regulations.

electrician near the panel

Low voltage electrical wiring, circuits, sockets, distribution boards and mains panels can be damaged or can deteriorate over time, so testing and inspection involves robust visual as well as electronic procedures to ensure your workplace is compliant with statutory responsibilities.

All electrical installations must be maintained in a safe condition and therefore need to be periodically tested and inspected by a skilled person so as to ensure compliance with the Electricity at Work Regulations (1989). Indeed it is recommended that every electrical installation is subject to periodic inspection and testing in BS 7671 2008 as amended (Regulation 135.1).

The Electrical Installation Condition Report (EICR) certifies the condition in-service of electrical installations against the requirements of the current edition of BS 7671 when inspected, regardless of the age of installation, reporting and detecting any factors which impair or are likely to impair the safety of the electrical installation. The Electrical Installation Condition Report is a report based on fact of the condition of the installation and is not intended to be a proposal for remedial work. Every recorded observation describes a specific omission, defect, or item where improvement is recommended.

How frequently should we carry out Fixed Wire Testing?

The recommended frequency of Fixed Wire Testing can vary between 1 and 5 years depending on the type of business, so how often does your workplace need testing?

The testing frequency is specified in the up to date version of the IET Wiring Regulations (currently BS7671:2018), determined by: the external influences and environment which the electrical; installation is exposed to; how often it is used; the type of installation.

In many commercial business situations, an EICR (previously called a periodic testing report) will be needed at the lowest frequency interval which is every 5 Years. Higher risk environments however, must have 3 yearly or maybe testing more frequently.

Please note that all periods stated are the maximum intervals. If the installation is deteriorating it could mean that intervals need to be reduced between testing.

5 Year Fixed Wire Testing

Nearly all standard workplace environments should have an Electrical Installation Condition Report produced every 5 years. Despite this it is recommended that there are regular routine inspections conducted every year.

Workplaces which need 5 Yearly Fixed Wire Testing include:-

  • Hotels and restaurants (excluding spa hotels)
  • Commercial areas including retail outlets and offices
  • Schools, colleges and universities
  • Community centres, churches and public houses
  • Houses of multiple occupancy (HMOs) and halls of residence
  • Hospitals (not including medical locations) and care homes
Periodic Fixed Wire Inspections testing electrical panel

3 Year and 1 Year Fixed Wire Testing

Where Environments are exposed to dust, moisture, or extreme temperatures and they are open to the general public pose a higher risk and thus need more frequent testing. This type of workplace must be tested every 1 -3 years, with routine inspections more frequently required.

Workplaces or environments which need 3 or 1 year Fixed Wire Testing include:

  • Industrial Units – 3 years
  • Hotels, leisure centres and spas – 3 years
  • Caravans – 3 years
  • Theatres and places of public entertainment – 3 years
  • Horticultural and agricultural establishments – 3 years
  • Cinemas – 1 year (front of house), 3 years (back of house)
  • Swimming pools and saunas – 1 year
  • Caravan Parks and Marinas – 1 year
  • Fish Farms, Laundrettes, Petrol Stations – 1 year
  • Medical locations in hospitals or clinics – 1 year


“It was the energy saving that was the key driver, we only committed to a 50% reduction in energy use, in practice it was nearer 70% resulting in annual savings of circa £70,000, If we had of stayed with the old system, this annual saving opportunity would have been lost forever”

Kevin McGlynn – Head of facilities Cadburys

Over 800 installations

We have a track record of working with Blue-Chip clients in this sector and have worked with many companies on over 800 projects during the last few years, and our expertise gives our customers that extra peace of mind that they will receive the right solution for their business.

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