Is my home properly earthed? What you can check safely

A normal-looking socket cannot prove that the earth connection works.

The answer in 2 lines. You cannot establish that your home is safely earthed by looking at its sockets, finding a green-and-yellow cable or pressing an RCD test button. Earthing, protective bonding and automatic disconnection work together, and an electrician needs to inspect and test them. Look for an existing Electrical Installation Condition Report, or ask your landlord for it. Do not open the consumer unit, remove socket fronts or create a homemade earth connection. If an appliance or tap gives you a shock or tingling sensation, stop using it and arrange urgent investigation.

The first steps

Find the paperwork: look for an Electrical Installation Condition Report, usually called an EICR, and any certificates for later electrical work. Check the inspection outcome and recommended next inspection.
Keep checks external: note damaged sockets, scorch marks or missing covers without opening anything. Photograph visible defects from a safe position.
Arrange testing if you are unsure: use Electrical Safety First’s search, enter your postcode and select the option for an electrical safety report.

Stop: danger

Tingling or an electric shock: stop touching the appliance or metalwork. Isolate the supply only if you can do so safely, and seek urgent electrical advice. Do not touch it again to see whether the sensation returns.
Someone is receiving a shock: do not touch them while they may still be connected to the electricity. Call 999 if their life is at risk.
No improvised earth: never connect an appliance earth to a water or gas pipe, radiator or homemade ground connection.

What visible clues can and cannot tell you

A standard British socket has an earth contact, but its appearance cannot confirm that the protective connection is continuous or effective. New faceplates can conceal old wiring. Equally, a visible green-and-yellow conductor does not establish that every circuit is correctly connected.

Do not go searching inside electrical equipment for proof. A plug-in socket tester may identify some wiring faults, but a reassuring indication cannot certify the installation. If you already have a tester result, give it to the electrician as background information rather than treating it as clearance to use suspect equipment.

Earthing, bonding and RCDs have different jobs

Earthing provides a protective path for fault current so that protective equipment can disconnect the faulty circuit. Protective bonding connects relevant metal services to the electrical installation’s protective system to reduce dangerous voltage differences.

An RCD detects certain electrical faults and disconnects the supply. It provides additional protection, but does not make missing or defective earthing acceptable. Read Electrical Safety First’s explanation of earthing and bonding before discussing concerns with your electrician. Ask them to explain the arrangement in your home and what any proposed work will achieve.

What not to do

Removing socket fronts or the consumer-unit cover to look for earth wires.
Using a screwdriver tester, bare wire or an appliance casing to experiment with the supply.
Removing an earth pin or changing protective connections to stop a device tripping.
Assuming that replacing the consumer unit alone corrects every earthing defect.
Applying a universal resistance target to your home without identifying its earthing arrangement.

What to ask the electrician

Explain any shocks, recent building work or unexplained tripping. Ask for inspection and testing of the earthing arrangement, protective conductors, relevant bonding and protective devices. The appropriate checks depend on how your property receives its supply; a visible earth rod is not required in every home.

Request a written explanation of defects and any restrictions on using circuits. Keep the inspection report and certificates for completed work together. If a report identifies danger, ask what has been made safe and what must remain isolated until repairs are completed.

If you rent in England

Current GOV.UK guidance on electrical safety in rented homes covers private and social renting. Read its electrical-installations and report sections to check your landlord’s duties and any exemptions. Covered installations must be inspected and tested at least every five years, with an earlier inspection where required by the report.

Ask your landlord for the latest report and evidence that required repairs were completed. Report a current fault in writing even if the previous report was satisfactory. For help understanding the response, use Shelter England’s electrical-safety guidance. Wales, Scotland and Northern Ireland have different rental rules.

Good to know

The RCD test button checks the device’s operation; it does not measure your home’s earthing. Follow the device instructions and arrange advice if it fails to trip.
Before any planned test that interrupts electricity, consider medical equipment and other essential supplies.
No shock or tingling is reassuring evidence: do not use your body to assess electrical safety.

Illustrative example: in Bristol, Nadia feels tingling when touching her washing machine. She stops using it and reports the fault to her landlord. An electrician investigates both the appliance and the installation, makes the unsafe equipment safe and records the necessary repairs. Nadia waits for confirmation before using it again, rather than relying on the socket’s appearance.

A made-up story, for illustration.

Bobby

Sources, verification, confidence

Verified on 4 November 2026, for England. Confidence: high for the need for professional testing, the distinction between earthing and bonding, and current rented-home inspection duties. An individual installation’s safety cannot be confirmed remotely. No universal earth-resistance threshold is stated.