There is a circuit breaker somewhere in a Leicester office that trips every couple of weeks. Nobody is quite sure why. The facilities manager resets it, makes a mental note, and the week moves on. Six months pass. Then a year. Then one Tuesday morning, the fire alarm goes off and operations grind to a halt.
That story is more common than most people realise. Electrical issues in commercial buildings rarely announce themselves with drama. They build quietly, behind ceiling voids and inside distribution boards, until something forces the issue at the worst possible moment.
The good news is that commercial electrical maintenance exists precisely to catch these problems early. The better news is that staying on top of it is far simpler than most property managers expect. This guide walks you through what the law requires, what best practice looks like, and how to build a maintenance plan that keeps your building in Leicestershire or the wider East Midlands safe, compliant, and running without interruption.
Why Commercial Electrical Maintenance Is Not Optional
Electrical distribution faults are the single largest identifiable cause of workplace fires in the UK, responsible for approximately 18% of all non-residential building fires in 2024/25, amounting to around 2,126 incidents in a single year. Over a three-year period, more than 4,000 business fires across the UK have been directly attributed to faulty electrics.
These are not freak accidents. The vast majority are preventable with properly scheduled electrical inspections and a structured maintenance plan. Regular commercial electrical maintenance is the difference between a business that runs smoothly and one that faces:
- Unplanned downtime at the worst possible moment
- Costly emergency repairs that dwarf the cost of scheduled maintenance
- Serious harm to employees, customers, or visitors on the premises
- Legal and financial exposure under UK health and safety law
What the Law Actually Requires: Electricity at Work Regulations 1989 and BS 7671
The starting point for any commercial property in the UK is the Electricity at Work Regulations 1989. This legislation places a clear duty on employers and building managers to ensure that all electrical systems are maintained in a condition that prevents danger. It does not prescribe a rigid timetable, but the standard is unambiguous: your electrical equipment and installations must be safe at all times.
To demonstrate compliance with those work regulations, the industry works to BS 7671, also known as the IET Wiring Regulations. This is the British Standard against which all electrical work is inspected and tested. If your systems cannot be shown to meet this standard, you are exposed to real legal and financial risk.
The key legal obligations every commercial property must meet include:
- Maintaining all electrical systems so they are safe for use at all times, under the Electricity at Work Regulations 1989
- Providing a safe working environment for employees under the Health and Safety at Work Act 1974
- Ensuring all electrical work is carried out by a competent, qualified electrician
- Keeping records of inspections, tests, and any remedial work carried out
Employers face unlimited fines for serious breaches and, in the most severe cases, custodial sentences.
How Often Should Commercial Properties Have an EICR?
An Electrical Installation Condition Report, referred to throughout the industry as an EICR, is a formal assessment of your building’s fixed wiring, distribution boards, sockets, switches, and circuits. A qualified electrician inspects and tests everything in accordance with BS 7671 and flags any defects or deterioration. The result is a written report that clearly states what is safe, what needs attention, and what requires urgent action.
For most commercial properties, the recommended interval is every five years. However, this is a guideline rather than a ceiling. You should also arrange a fresh EICR in any of the following situations, regardless of when the last one was carried out:
- Following any significant alteration or addition to the electrical installation
- Following a change in the purpose or use of the building
- Following a change of tenancy or ownership
- When your electrician identifies concerns that warrant earlier re-inspection
- When the previous EICR recommended a shorter interval before the next assessment
Waiting for the five-year cycle to arrive is not always the right approach, and in some circumstances it is not appropriate at all.
Recommended Maintenance Frequency by Property Type
There is no single timetable that fits every commercial building. The right maintenance plan depends on the type of property, its use, and the age of the electrical installation. Here is a practical breakdown for the property types we work with most commonly across Leicestershire and the East Midlands.
Offices
- Five-year EICR cycle as the standard baseline
- Annual PAT testing for all portable electrical equipment
- Regular visual checks monthly or quarterly by a responsible person
- Particular attention to overloaded circuits as device and technology demand increases on systems designed for lower electrical loads
Warehouses and Industrial Units
Industrial premises accounted for approximately 25% of all UK workplace fires in 2024/25, making them the highest-risk commercial property type.
- Three to five-year EICR cycle, depending on the nature of operations
- More frequent checks on machinery-specific electrical components
- Thermal imaging surveys to detect heat anomalies in distribution boards and wiring before they become visible faults
- Annual PAT testing is a minimum for portable equipment
Schools and Educational Premises
Education premises recorded 417 fires in 2024/25, with electrical faults among the leading causes.
- Three to five-year EICR cycle, with most schools opting for the shorter end, given the duty of care owed to children and staff
- Annual PAT testing essential across the full equipment estate
- Emergency lighting checks monthly and annually as required
- Clear documentation kept accessible for Ofsted, fire authority, and insurance purposes
Retail Premises
Retail buildings account for approximately 18% of all UK workplace fires, driven by long trading hours, frequent layout changes, and high footfall.
- Five-year EICR as the baseline
- A fresh inspection triggered by any significant refit or change in use, regardless of timing
- Annual PAT testing for all portable equipment
- Regular visual checks given the density of customer-facing electrical equipment
PAT Testing: How Often Should It Be Done?
Portable Appliance Testing covers the electrical equipment your staff use every day, including:
- Computers, monitors, and printers
- Kettles, microwaves, and other kitchen appliances
- Extension leads and multi-socket adaptors
- Power tools and any equipment that moves between locations
There is no fixed legal interval for PAT testing, but employers are required under the Health and Safety at Work Act 1974 to ensure all equipment in use is safe. For most commercial settings, annual PAT testing is considered good practice and is often expected by insurers and health and safety auditors. High-traffic environments, or workplaces where equipment is moved frequently or used intensively, may benefit from more regular testing. The key principle is that the frequency should be proportionate to the risk.
What Should a Commercial Electrical Maintenance Plan Include?
A well-structured maintenance plan for a commercial property typically combines several layers of activity. Here is what we consider the essential components:
- Regular visual checks by a designated responsible person, carried out monthly or quarterly depending on the environment, to catch obvious issues such as damaged cables, overloaded extension leads, warm outlets, and faulty light fittings before they develop further
- Scheduled PAT testing at an interval appropriate to the risk level of the premises, typically annually for standard office and retail environments
- Periodic EICRs at the right interval for the property type, carried out by a NICEIC-accredited commercial electrician
- Thermal imaging surveys for industrial and high-demand environments, identifying electrical components showing early signs of heat-related failure before they cause a breakdown or a fire
- Emergency lighting checks, including monthly functional tests and an annual full-duration battery discharge test, as required under BS 5266
- RCD testing to verify that residual current devices will operate correctly in the event of a fault, as these are critical safety devices that must be confirmed to be working as part of any structured maintenance programme
- Written records of every inspection, test, and remedial action taken are maintained in an accessible and auditable format
Planned Preventive Maintenance vs Reactive Maintenance
There is a fundamental difference between a business that schedules maintenance and one that waits for something to go wrong.
Reactive maintenance means:
- Calling an electrician only when a problem has already disrupted operations
- Paying significantly higher costs for emergency callouts and urgent repairs
- Facing unplanned downtime with no warning and no contingency
- Lacking documentation when an insurer or inspector comes calling
Planned preventative maintenance means:
- Faults are identified before they cause failures or disruptions
- Equipment is checked, tested, and serviced during a scheduled and agreed window
- Costs are predictable and can be budgeted for in advance
- Records are current and available at any time
- If an HSE inspector, insurance auditor, or fire safety officer visits your building, you have the documentation to demonstrate that your systems are being properly managed
Research consistently shows that planned maintenance costs a fraction of reactive repairs for equivalent issues, and the operational savings from avoiding unplanned downtime compound significantly over time.
The Real Cost of Skipping Commercial Electrical Maintenance
The financial logic of regular commercial electrical maintenance goes well beyond compliance. Skipping maintenance exposes your business to a range of costs and consequences that far outweigh the price of keeping on top of it:
- Unplanned downtime from unexpected electrical failures disrupts staff, customers, and business continuity
- Emergency repair costs are typically several times higher than planned maintenance visits for equivalent work
- Insurance complications, as many insurers require documented maintenance records and valid EICR certificates to validate commercial policies or process claims; a claim arising from an electrical fault in a building with no maintenance records could be contested or refused
- HSE enforcement action, including unlimited fines and, in the most serious cases, custodial sentences for those responsible under the Electricity at Work Regulations 1989
- Fire damage and business closure: the average financial loss from a major UK business fire is estimated at £657,074, and a quarter of fire-affected businesses never reopen
Why Documentation and Record Keeping Matter
Under UK electrical safety law, if the work is not recorded, it is effectively not recorded. Documentation is the evidence that demonstrates compliance during insurance audits, HSE inspections, and fire safety assessments.
Every maintenance activity should be logged clearly and kept accessible. Good records include:
- The date and scope of every maintenance visit, inspection, and test
- The findings from each visit, including any faults identified and their severity
- The actions taken in response to any findings, including remedial work completed
- EICR reports in full, detailing every circuit inspected, any coded observations, and the recommended interval before the next assessment
- PAT test results with a clear inventory of all appliances tested
- Emergency lighting test records, both monthly functional tests and annual full-duration results
- RCD test logs confirming devices are operating within acceptable parameters
Good record-keeping also supports long-term planning. It allows you to:
- Track the health of your electrical installation over time
- Budget accurately for future inspections and upgrades
- Make the case for system improvements before they reach the point of failure
- Demonstrate due diligence to insurers, auditors, and enforcement bodies at any time
How Glenfield Electrical Can Help
Reliable electrical work is not just about fixing faults. It is about giving you the peace of mind that your business is safe, compliant, and ready for whatever comes next.
At Glenfield Electrical Ltd, our team of NICEIC-accredited commercial and industrial electricians has been delivering high-quality electrical maintenance, inspections, and installations across Leicestershire and the East Midlands for over 20 years. We offer:
- Thorough EICRs with clear, jargon-free reports and honest recommendations
- Structured commercial maintenance plans tailored to your property type and risk level
- Annual PAT testing with full documentation
- Thermal imaging surveys for industrial and high-demand environments
- Emergency lighting testing and certification
- RCD testing and remedial work were required
All of our work is backed by clear communication, transparent pricing, and industry-leading guarantees.
If you manage a commercial property and are unsure whether your current maintenance schedule meets your legal obligations, or if you simply cannot remember when your last EICR was carried out, that is a good enough reason to get in touch.
Contact Glenfield Electrical Ltd at Unit 5, Mill Lane Industrial Estate, The Mill Lane, Glenfield, Leicester, LE3 8DX, call 0116 478 3679, or email info@glenfieldelectrical.com. Visit https://glenfieldelectrical.com/ to request a quote or book your commercial electrical maintenance review today.