What Does an Electrical Safety Check In The UK Involve?
An electrical safety check is a full inspection of a property’s wiring, fuse box, sockets, switches, and electrical installations to make sure everything is safe, compliant, and working as it should. A qualified electrician carries out the inspection, checking for faulty wiring, overloaded circuits, outdated fuse boxes, and any signs of electrical damage that could lead to fires or electric shocks.
The check also includes circuit testing to confirm the system is running safely. If there are any issues, the electrician will provide an Electrical Installation Condition Report (EICR) detailing what needs fixing. For landlords, businesses, and homeowners, these checks are an important step in keeping people and properties safe.
What We Have Covered In This Article
- What Does an Electrical Safety Check In The UK Involve?
- Why Is An Electrical Safety Check Important?
- What Happens During An Electrical Safety Check
- What Is Checked Inside The Consumer Unit (Fuse Box)?
- How Often Should an Electrical Safety Check Be Carried Out?
- What Happens After The Inspection?
- What Are The Signs That You Need An Electrical Safety Check?
- How Much Does An Electrical Safety Check Cost?
Why Is an Electrical Safety Check Important?
Electrical faults are one of the leading causes of house fires and electric shocks in the UK. A safety inspection helps identify risks before they become serious problems.
✔ Prevents electrical fires by checking for damaged or overheating wiring.
✔ Reduces the risk of electric shocks by making sure earthing and RCDs work properly.
✔ Ensures compliance with UK safety regulations, especially for landlords and businesses.
✔ Protects electrical appliances from power surges and faulty wiring.
✔ Saves money by spotting small issues before they lead to costly repairs.
Pro Tip: Test RCDs Regularly
Residual Current Devices (RCDs) protect you from electric shocks, but they need to be checked. Press the “Test” button on your RCDs every 6 months to ensure they trip properly. If they don’t, call a qualified London electrician to inspect them.
What Happens During an Electrical Safety Check?
1. Visual Inspection – What Does an Electrician Look For?
Before testing begins, the electrician will visually inspect key parts of the system, including:
- Wiring – checking for frayed, damaged, or loose connections.
- Sockets and switches – looking for cracks, scorch marks, or signs of overheating.
- Light fittings – ensuring secure installations and no exposed wiring.
- Consumer unit (fuse box) – checking for outdated fuses or missing RCD protection.
- Signs of overloaded circuits – too many appliances running from one outlet can be a fire risk.
2. Circuit Testing – How Do Electricians Check the Wiring?
Once the visual inspection is complete, the electrician carries out circuit testing using professional equipment to check for hidden faults.
Insulation Resistance Testing
This test checks whether the electrical cables are deteriorating or damaged, which can cause short circuits or shocks.
Earth Fault Loop Impedance Testing
Ensures the earthing system is working properly so that electricity flows safely in the event of a fault.
Polarity Testing
Checks that live, neutral, and earth wires are correctly connected. Incorrect polarity can lead to appliances becoming live with electricity, which is extremely dangerous.
Residual Current Device (RCD) Testing
An RCD is a safety switch that immediately cuts power if it detects a fault. The electrician will test whether it trips fast enough to prevent an electric shock.
Get A Fast & Reliable EICR Report
Landlords must have an EICR every 5 years. Get a fast, hassle-free Electrical Installation Condition Report from our certified London electricians today.
What Is Checked Inside the Consumer Unit (Fuse Box)?
The consumer unit (also called the fuse box) is one of the most important parts of your home’s electrical system. During the inspection, the electrician will:
- Check the circuit breakers to ensure they trip correctly.
- Test the RCDs to make sure they work as a safety measure.
- Look at the fuse ratings to confirm they match the circuits they protect.
- Assess the overall condition to see if an upgrade to a modern 18th Edition consumer unit is needed.
If your fuse box is outdated, the electrician may recommend replacing it with a modern unit that includes built-in RCD protection.
How Often Should an Electrical Safety Check Be Carried Out?
Homeowners
It’s recommended to have an electrical safety check at least every 10 years to keep your home safe and up to date.
Landlords
By law, landlords must have an EICR inspection every 5 years or at the start of a new tenancy. This is part of the Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020.
Businesses
Commercial properties should have an electrical inspection every 3-5 years, depending on the type of business and its electrical demands.
Pro Tip: Don’t Overload Plug Sockets
Too many appliances plugged into one socket can overheat wiring and cause fires. Use extension leads with built-in surge protection and spread power-hungry appliances across different circuits.
Keep Your Home Safe
Don’t wait until it’s too late! Our qualified electricians will check your wiring, fuse box, and circuits to make sure your home or business meets UK safety standards.
What Happens After the Inspection?
Understanding Your Electrical Installation Condition Report (EICR)
After the check, the electrician will provide an EICR, which includes:
- A summary of the electrical system’s condition.
- Any faults, risks, or non-compliant installations.
- A coding system for any issues found:
- C1 – Immediate danger (must be fixed straight away).
- C2 – Potentially dangerous (needs urgent attention).
- C3 – Improvement recommended (not urgent but should be addressed).
If C1 or C2 issues are found, the system fails the inspection, and the faults must be repaired before an EICR certificate can be issued.
What Are the Signs That You Need an Electrical Safety Check?
Look out for these warning signs and book an inspection if you notice any of them:
✔ Flickering or dimming lights – could mean loose wiring or voltage fluctuations.
✔ Buzzing sounds or a burning smell from sockets – a sign of overheating wiring.
✔ Circuit breakers constantly tripping – may indicate a faulty fuse box or overloaded circuits.
✔ Sparks or electric shocks when plugging things in – this is a major safety risk.
✔ Old or outdated wiring – older electrical systems might not meet modern safety regulations.
How Much Does an Electrical Safety Check Cost?
The price of an electrical inspection depends on the size and type of property:
1-2 bedroom flat: £100 – £150
3-4 bedroom house: £150 – £250
Larger homes or commercial properties: £250+
It’s best to get a quote from a qualified London electrician to ensure you get a fair price for a full safety check.
Need an Electrical Safety Check in London?
At My Electrical Hero, we offer professional electrical safety inspections and EICRs across London. Whether you’re a homeowner, landlord, or business, our fully qualified electricians will make sure your property meets UK safety standards.
Book your electrical safety check today for a reliable and thorough service.
