How long does an EICR take?
- Studio or 1-bed flat: around 1.5–2 hours.
- 2–3 bed home: around 2.5–4 hours.
- 4+ bed house or HMO: half a day to a full day.
- Commercial premises: from a few hours for a small shop to several days for a large site, usually planned around trading hours.
Time depends mainly on the number of circuits and how easy it is to reach the consumer unit, sockets and light fittings.
What the inspector does
1. Visual inspection
The inspector checks the consumer unit, the main earthing and bonding arrangements, and a sample of accessories, switches and light fittings for damage, overheating, wear and unsuitable alterations. Bathrooms, kitchens and outdoor circuits get particular attention.
2. Live and dead testing
Each circuit is tested for continuity of protective conductors, insulation resistance, polarity and earth fault loop impedance. RCDs are tested to confirm they disconnect fast enough. Some tests require the power to be off; others are carried out live.
3. The report
The results are recorded on a schedule of test results, every observation is coded (see EICR codes explained) and an overall verdict of satisfactory or unsatisfactory is given, together with a recommended date for the next inspection. We issue the digital report within 48 hours.
Will the power be off?
Yes, in short spells. Individual circuits are switched off while they are tested, and there is usually a period with the whole installation isolated. Fridges and freezers are normally fine if kept closed. Let us know about medical equipment, home working, alarms or aquariums and we will plan around them.
How to prepare
- Make sure the consumer unit is accessible and not blocked by stored items.
- Give access to every room, including lofts, garages and outbuildings with power.
- Warn tenants about the power interruptions and agree a time with them.
- Have the previous EICR available if you have it — it helps the inspector compare results.
- Save work and switch off computers before the inspection starts.
What is not included
An EICR covers the fixed wiring: circuits, consumer unit, sockets, switches and fixed fittings. Portable appliances are covered separately by PAT testing, and fire alarm and emergency lighting systems have their own certificates. We can carry out several of these in one visit.