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Commercial EICR and fixed wire testing guide

Commercial EICRs – often called fixed wire testing or periodic inspection – are how employers and building owners demonstrate their electrical systems are being maintained safely. Here is what the law expects and how to plan testing with minimal disruption.

Updated 8 October 2026•7-minute read•By Polarity Electrics London Ltd (NICEIC Approved Contractor)

Is a commercial EICR a legal requirement?

The Electricity at Work Regulations 1989 require employers and those in control of premises to maintain electrical systems so far as reasonably practicable to prevent danger. The regulations do not name the EICR, but periodic inspection and testing to BS 7671 is the accepted way to prove this duty is being met. Insurers, landlords, local authorities and fire risk assessors routinely ask for a current commercial EICR.

How often is fixed wire testing needed?

PremisesRecommended maximum interval
Offices, shops, hotels, churches5 years
Restaurants, pubs, educational and healthcare buildings5 years
Industrial units, warehouses with plant3 years
Cinemas, theatres, leisure centres3 years
Swimming pools and agricultural premises1–3 years

How we plan commercial testing

  1. Survey or desktop review of boards, circuit counts and previous reports.
  2. Fixed quote by board and circuit, with any out-of-hours requirements agreed.
  3. Phased shutdowns planned with your facilities team to protect IT, refrigeration and tenants.
  4. Inspection and testing of every distribution board and circuit, with updated circuit charts.
  5. Digital EICR plus itemised, prioritised remedial schedule.
  6. Optional thermal imaging of boards under load, PAT testing and emergency lighting testing.

How much does a commercial EICR cost?

Small offices and shops with a single board start from £299 + VAT. Larger buildings are priced per distribution board and circuit; for a multi-floor office this might be several thousand pounds, depending on board count, three-phase plant and access windows. Out-of-hours and weekend testing is available.

Plan your commercial fixed wire testing

Tell us your board count and opening hours and we will provide a fixed, phased testing plan with minimal disruption.

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Frequently asked questions

Is fixed wire testing the same as an EICR?

Yes. Fixed wire testing is the common commercial name for the inspection and testing that produces an Electrical Installation Condition Report.

Can fixed wire testing be done out of hours?

Yes. We regularly test evenings, nights and weekends so offices, shops and restaurants can keep trading.

Who is responsible for the EICR in a leased commercial unit?

It depends on the lease. Typically the landlord is responsible for landlord-controlled and common parts, and the tenant for the installation within their demise. Check your lease's repair and compliance clauses.

How much does an EICR cost in 2026?Typical 2026 EICR prices for flats, houses, HMOs and commercial premises, and what pushes the cost up.Failed EICR: what to do after an unsatisfactory reportYour 28-day action plan after an unsatisfactory EICR, with typical remedial costs.How often do you need an EICR?Recommended EICR renewal intervals for every property type, from flats to factories.

Sources

This guide summarises current requirements and common inspection practice. It does not replace legal advice, the findings of your report or current legislation.