Commercial EICR

Does My Business Need an EICR? Commercial EICR Requirements Explained

By Influx Electrical July 2026 6 min read

If you run a business, you've probably had someone — an insurer, a landlord, a fire risk assessor — ask if your EICR is up to date. Unlike domestic rentals, there's no single fixed rule for commercial premises, which makes it a genuinely confusing area for business owners. This guide covers what the law actually requires, how often you should test, and what happens if you don't. For the domestic and landlord side of EICRs, see our guide on what an EICR is and who needs one.

Is an EICR a Legal Requirement for Businesses?

There isn't a single law that says "every business must have an EICR every X years" the way there is for domestic rentals. Instead, the Electricity at Work Regulations 1989 place a general legal duty on employers and business owners to maintain electrical systems in a condition that prevents danger, so far as is reasonably practicable.

An EICR is the standard, recognised way of demonstrating that duty has been met. In practice, if something goes wrong with your electrical installation and you can't show evidence of regular inspection and testing, you're exposed — to enforcement action from the Health and Safety Executive, to invalidated insurance, and to potential liability if anyone is harmed.

In short: there's no fixed statutory interval, but you do have a legal duty to keep your electrical installation safe — and an in-date EICR is how you prove it.

How Often Should a Business Have an EICR?

The HSE and IET publish guidance on recommended maximum intervals between inspections, based on the type of premises and how hard the electrical system is worked. As a general guide:

Premises TypeRecommended Max Interval
Offices & shops5 years
Industrial units & warehouses3 years
Restaurants & commercial kitchens3 years
Leisure venues, launderettes & similar higher-risk premises1 year

Kitchens and food service areas tend to need more frequent testing because heat, grease and moisture accelerate wear on wiring and connections. Industrial units with heavier plant and three-phase supplies face similar pressures. If in doubt, we can advise on the right interval for your specific premises.

Will My Insurer Ask for an EICR?

Increasingly, yes. Many commercial insurance policies now require a valid, in-date EICR as a condition of cover — particularly for premises with higher electrical loads, older buildings, or after a claim involving fire or electrical damage. If you can't produce one when asked, an insurer may refuse or reduce a payout, even if the EICR itself wasn't the cause of the incident. It's worth checking your policy wording rather than assuming you're covered.

How Does a Commercial EICR Support Your Fire Risk Assessment?

Under the Regulatory Reform (Fire Safety) Order 2005, the "responsible person" for non-domestic premises must carry out and maintain a fire risk assessment. Electrical faults are one of the most common causes of workplace fires, so a satisfactory EICR is often used as supporting evidence that electrical risk has been properly managed as part of that assessment.

What Happens During a Commercial EICR?

The process is broadly the same as a domestic EICR, scaled up for the size and complexity of the installation:

  • Visual inspection — distribution boards, wiring, containment, sockets, switchgear and fixed equipment
  • Circuit testing — insulation resistance, earth continuity and RCD response times for every circuit
  • Observations graded — issues coded C1 (danger), C2 (potentially dangerous) or C3 (improvement recommended)
  • Certificate issued — a signed report ready for insurers, landlords or your fire risk assessment file

Because commercial premises vary so much — from a single-room office to a multi-board warehouse — duration and disruption are always confirmed before we start. We regularly carry out testing early morning, evenings or weekends to avoid interrupting trading hours or staff.

What if the Report Comes Back Unsatisfactory?

The same C1/C2/C3 coding system used for domestic EICRs applies to commercial ones. A report with only C3 observations can still be Satisfactory — these are recommendations, not requirements. Any C1 or C2 finding makes the report Unsatisfactory and means remedial work is needed. Influx Electrical can carry out that remedial work and re-certify the installation, so you're not left dealing with multiple contractors.

How Much Does a Commercial EICR Cost?

Unlike our domestic pricing, commercial EICRs are quoted individually — the cost depends on the number of circuits, distribution boards and the size and layout of the premises. A single-board office unit costs significantly less to test than a multi-board warehouse with three-phase supplies, so a one-size price wouldn't be accurate. Tell us a bit about your premises and we'll come back with a fixed quote, usually within a couple of hours.

We carry out commercial EICR inspections for offices, retail units, warehouses and hospitality premises across Darlington, Teesside, Durham and the wider North East. Get in touch for a fast, tailored quote.

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