Electric meter inspection

Homeowners usually request these inspections when buying a new property, noticing signs of wear, or before undertaking major renovation work. A professional assessment identifies potential fire hazards, ensures earthing is up to standard, and confirms that no illegal tampering has occurred, which could lead to significant fines or safety risks.

What Does the Work Involve?

• Visual Assessment: Checking the physical condition of the meter, the cupboard enclosure, and all visible wiring for signs of heat damage or corrosion.
• Seal Verification: Inspecting the security seals on the meter and service head to ensure they are intact and haven't been tampered with.
• Earthing and Bonding Check: Confirming that the main earthing conductor and gas/water bonding are present and correctly connected at the intake position.
• Meter Tail Inspection: Verifying that the heavy-gauge cables (tails) connecting the meter to your consumer unit are the correct size and in good condition.
• Data Recording: Noting the meter serial number and current readings to ensure they match your utility billing records.
• Reporting: Providing a written summary or checklist of findings, including photos of any defects or safety concerns.

Typical Costs

Prices vary based on your location (London and the South East carry a premium) and the ease of access to the meter. If the electrician identifies urgent safety defects, such as exposed live parts, the cost of immediate remedial repairs will be quoted separately.

How Long Does It Take?

• Standard Domestic Inspection: 30 to 45 minutes for a visual check and reporting.
• Complex Access: 1 to 2 hours if the meter is in a locked communal cupboard or at height.
• Multiple Meter Points: 2+ hours for HMOs (Houses in Multiple Occupation) or converted flats with shared intake rooms.

DIY or Professional?

This is strictly a professional-only task. You should never attempt to inspect or open electric meter housings yourself due to the risk of fatal electric shock from unshielded live components.

Under UK law, any work involving the "service head" or the meter itself is often the remit of the Distribution Network Operator (DNO) or the energy supplier. An electrician can inspect the installation, but breaking a supplier seal is a criminal offence.

Professional electricians are trained to spot subtle signs of "arcing" or thermal damage that an untrained eye would miss. They also ensure all work complies with Part P of the Building Regulations and BS 7671 (The Wiring Regulations).

Choosing the Right Tradesperson

• Check Registrations: Ensure they are a member of a government-approved scheme such as NICEIC, NAPIT, or SELECT (in Scotland).
• Insurance: Verify they hold valid Public Liability Insurance (minimum £2 million is standard).
• Experience: Ask if they have experience dealing with your specific meter type, especially if you have a complex 3-phase supply or an older "Economy 7" setup.

Questions to ask:

• Are you registered to self-certify your work under Part P?
• Does the price include a written inspection report and photos?
• If you find a fault with the supplier's equipment, will you contact the DNO on my behalf?
• Is there a separate charge for "making safe" any immediate hazards found?

UK Regulations

• BS 7671 (The Wiring Regulations): The national standard for all electrical installations in the UK.
• Part P (Building Regulations): Covers electrical safety in dwellings; certain remedial works must be notified to Local Authority Building Control.
• Electricity at Work Regulations 1989: Requires that electrical systems are maintained to prevent danger.
• The Electricity Act: Governs the legalities of meter ownership and prevents unauthorised interference with metering equipment.

Common Problems

• Broken Seals: Often caused by previous unauthorised work; this can lead to accusations of energy theft by suppliers.
• Moisture Ingress: External meter boxes are prone to cracking, allowing rain to enter and corrode live terminals.
• Undersized Tails: Older properties often have 16mm tails that are insufficient for modern 100A supplies, posing a fire risk.
• Loose Connections: Over time, thermal expansion can loosen terminal screws, leading to "hot spots" and potential fires.
• Lack of Main Bonding: Many older homes lack the required 10mm earth bonding to gas and water pipes, a major safety fail.

Frequently Asked Questions

Who is responsible for the electric meter?

The energy supplier owns the meter, and the Distribution Network Operator (DNO) owns the service head and the main fuse. You, the homeowner, are responsible for the meter tails (the wires coming out of the meter) and everything from that point into your home.

What should I do if my meter seals are missing?

You should contact your energy supplier immediately. An electrician can confirm if they are missing during an inspection, but only the supplier or DNO is legally allowed to replace them. Missing seals can be flagged as "tampering" if not reported.

Can an electrician move my meter during an inspection?

No. A private electrician can move your consumer unit, but only the DNO or your energy supplier is authorised to move the actual meter and the incoming service cable.

Is a meter inspection the same as an EICR?

No. An Electrical Installation Condition Report (EICR) is a full "health check" of your entire home's wiring. A meter inspection is a targeted check specifically focusing on the point of entry and the main intake equipment.

Why is my meter box making a buzzing or humming noise?

While a very faint hum can be normal for some meters, a loud buzzing or "crackling" sound usually indicates a loose connection or a failing component. This is an urgent safety issue and requires an immediate professional inspection.

Do I need to be home for the inspection?

Yes, usually. Even if the meter is in an external box, the electrician will need access to your consumer unit (fuse box) inside the house to verify the connections and earthing are consistent throughout the system.