Why regular electrical maintenance matters

Wiring, accessories and protective devices wear out. Connections loosen, cables get damaged during building work, and installations are altered over the years — not always well. None of this is visible until something fails. Periodic inspection and testing is how you find out what condition your installation is actually in.

What an inspection involves

A periodic inspection combines a visual check of the installation with tests of each circuit. The findings are recorded on an Electrical Installation Condition Report (EICR), which classifies any problems:

• C1 — danger present; immediate action needed
• C2 — potentially dangerous; urgent remedial work required
• C3 — improvement recommended
• FI — further investigation needed

An installation with any C1, C2 or FI observation is reported as unsatisfactory. The report also recommends when the next inspection should take place.

How often?

The right interval depends on the type of property, how it is used and the condition of the installation. As a guide:

• Rented homes in England: by law, at least every five years, with a copy of the report given to tenants.
• Owner-occupied homes: industry guidance suggests every ten years, and when a property changes hands.
• Shops, offices and other workplaces: commonly every five years, and more often where the environment is harder on the installation.

Your last report will state the recommended date for the next one. If you do not have a report, that in itself is a good reason to arrange an inspection.

Why it is worth doing

• Safety: deterioration, overheating connections and missing protection are found before they cause a fire or shock.
• Cost: small remedial jobs are cheaper than emergency repairs and the disruption that comes with them.
• Compliance: landlords have specific legal duties, and employers must maintain electrical systems to prevent danger under the Electricity at Work Regulations 1989.
• Insurance and sales: insurers, buyers and letting agents increasingly ask for up-to-date reports.

For businesses: keep the records together

Keep inspection reports, certificates for new work, emergency lighting test records and portable appliance test results in one place. They show that the installation is being maintained and make every future visit quicker.

Between inspections

Report anything that looks or smells wrong — warm sockets, scorch marks, buzzing or repeated tripping — rather than waiting for the next inspection. Test RCDs using their test button as described on the notice next to your consumer unit.

Next step

If an inspection is due, or you are not sure when the last one was done, request a quote and tell us about the property.