How Long Does an EICR Take?

At SM Electrical, one of the most common questions we hear is: how long does an EICR take? In most cases, a domestic EICR takes around 3 to 4 hours, but the real answer depends on the size of the property, the number of circuits, and how complex the electrical installation is. NICEIC says an EICR can take a few hours for a small domestic property, while larger residential, commercial or industrial premises may take a full day or even multiple days. Electrical Safety First also says they normally take around 3 to 4 hours, depending on the size of the property and the number of circuits being tested.

For us, that means there is no one-size-fits-all appointment length. A straightforward flat or smaller house is very different from a larger family home with extensions, outbuildings or older wiring. Commercial premises can also take longer because there are often more circuits, more equipment, and more planning needed to keep disruption down. That is why we always ask a few questions first before giving a realistic time estimate. Our own EICR reporting service covers both homes and businesses across Wolverhampton and the wider West Midlands, and we plan inspections around the property and how it is used.

What affects how long an EICR takes?

The biggest factor is usually the size of the installation. NICEIC states that timing varies with the size of the property and the size and complexity of the electrical systems, which is why a small domestic job can be completed in a few hours while larger sites can run much longer. In practice, that usually means more rooms, more circuits, more accessories and more consumer-unit ways to inspect and test.

The condition and age of the electrics also matter. If an installation is modern, clearly labelled and easy to access, the inspection is usually more straightforward. If the wiring is older, altered over time, or showing signs of wear, there is naturally more to inspect and more to record. NICEIC explains that an EICR includes a visual inspection for things like wear and tear, signs of overheating, damaged consumer units, missing covers and DIY alterations, followed by circuit testing using specialist equipment.

Access can make a noticeable difference too. If sockets, consumer units and accessories are easy to reach, testing tends to move faster. If areas are heavily furnished, locked off, or difficult to access, the visit can slow down. That is one reason we like to set expectations early and make sure the property is ready before we arrive. Our process starts with an initial enquiry, where we ask a few simple questions about the property and arrange the inspection accordingly.

How long does an EICR take for a house?

For most homes, around 3 to 4 hours is a fair guide, especially for a standard house or flat with a typical number of circuits. That lines up with Electrical Safety First’s guidance and with NICEIC’s broader view that small domestic properties may take only a few hours.

That said, some homes take longer. Larger properties, older homes, homes with garages or garden buildings, or homes that may need closer attention can push the inspection well beyond the average. If the report uncovers safety concerns or further investigation points, the inspection itself may still finish the same day, but any remedial work would be a separate step. On our own service page, we explain that we inspect the fuse box, wiring, sockets and lighting, then issue a report with codes such as C1, C2, C3 and FI, followed by written next steps and a no-obligation quote for remedial works, typically within a few days.

How long does an EICR take for landlords?

For landlords, the inspection time is often similar to a homeowner’s inspection for a property of the same size, but access, tenant arrangements and the age of the installation can all affect how smoothly the visit runs. NICEIC states that landlords in the UK private rented sector must have the installation inspected and tested at least once every five years. Our own content also notes that rental properties need a new EICR every five years.

From our side, the key is planning. We aim to make the process clear and efficient, but we also want enough time to do the inspection properly. An EICR is not something that should feel rushed, especially in rented homes where legal compliance and tenant safety matter. If a landlord also needs follow-on work such as fuseboard upgrades or more extensive rewiring, that would be booked separately after the report.

How long does an EICR take for a commercial property?

Commercial EICRs often take longer than domestic ones. NICEIC says larger residential, commercial and industrial premises can take a full day or even multiple days, depending on the scale and complexity of the system. That is consistent with what we see on site. Shops, offices, warehouses and other business premises often have more circuits, more distribution equipment and more coordination to work around staff, customers or trading hours.

On our EICR reporting page, we explain that we carry out fixed wire testing and electrical safety inspections for shops, offices, warehouses and commercial properties, and that we work around operating hours to reduce disruption. That flexibility matters because the timing of the inspection is not just about how long the testing takes, but also about how it fits the way the building is used.

What happens during the inspection?

A proper EICR is more than a quick visual check. NICEIC describes it as a document produced after a comprehensive health check of the electrical installation. Their guidance says the process includes a visual inspection, circuit testing, recording the results and issuing the report. The tests can include continuity, insulation resistance, polarity, earth fault loop impedance and RCD testing.

Our own process follows that same practical structure. We start with the initial enquiry, then carry out the on-site inspection of the fuse box, wiring, sockets and lighting. After that, we issue a detailed report with the relevant classification codes and confirm any remedial recommendations in writing. If works are needed afterwards, we can quote for them clearly and separately.

Can an EICR be done faster?

Sometimes, but we would always rather give a realistic time than a rushed promise. The aim of an EICR is to assess whether the installation is in a satisfactory condition, not to get in and out as quickly as possible. NICEIC makes clear that the inspection and testing are comprehensive, and Electrical Safety First’s 3 to 4 hour guide should be seen as a normal domestic benchmark, not a guaranteed fixed slot for every property.

From our point of view, a well-carried-out inspection saves time later because it gives a clearer picture of the installation. If faults are found, we can then advise properly on the next step, whether that is a targeted repair, a consumer unit upgrade, or more substantial rewiring work.

Our view

So, how long does an EICR take? For many homes, around 3 to 4 hours is a sensible guide, but the real timing depends on the property size, the number of circuits, and the overall complexity of the electrical system. Small domestic properties may only take a few hours, while larger or more complex buildings can take a full day or longer.