Electrical Safety Advice from our Electricians in North London & East London

This page is designed to give you electrical help, tips and advice. But always remember that it's always advisable to engage the services of an approved electrician for any electrical work that you are unsure of. Greenstone Electrical are exactly that, so if you are looking to find approved electricians in North and East of London or parts of Essex, then make us your first port of call by phoning 0203 130 6786.

Every year in the UK, 70 people die and 350,000 are injured as a result of electrical accidents within the home. A further 21,000 fires are caused by faulty electrics.

A few simple steps could help prevent this happening to you:

-Always use an approved NICEIC registered electrician (verify their credentials).

-Get your electrics checked by a competent person every 5-10 years.

-Whenever an appliance develops a fault, get it fixed or replaced straight away.

-Only buy electrical appliances or items from reputable suppliers (not the local pound shop).

-Make sure you are RCD protected (see below) when using electrical appliances.

-Do not overload multi-socket adapters.

-Always fully uncoil extension leads whilst in use, otherwise they overheat.

 Frequently Asked Questions:


When should I get my property rewired?

Roughly every 25-30 years. This depends on the original installation, intended usage and any ongoing maintenance programme.

How long will it take?

This depends on the size of your property, and what you are having done. An average house or flat can normally be completed within 1 week.

What should I do?

We would recommend you have the property tested (EICR) first, to see if it needs any work or if it complies with current electrical safety standards (BS7671:2011).


When should I upgrade my fuseboard?

If your current Fuseboard has any of the the following you should consider updating your Fuseboard:

           -No RCD protection - Rewirable Fuses - Made of flammable materials (wood) - Broken parts/cover.

What is the advantage of a new 17th edition Fuseboard?

New 17th Edition Fuseboards are alot safer and easier to use, as they have 2x RCDs installed in them. They also use Mini Circuit Breakers (MCBs) that can easily be reset.

What is an RCD?

RCD stands for Residual Current Device.

An RCD is a potentially life-saving safety device that protects against dangerous electric shock and reduces the risk of electrical fires. It’s a sensitive switching device that in the blink of an eye turns the electricity off when it senses danger – reducing the risk of death or serious injury.

  • Any socket that may be used to plug in a portable radio, a lawnmower, hedge trimmer or similar should have RCD protection.
  • Check that your RCD is up to scratch. The technical jargon is that it has to have a maximum rated residual operating current of 30 milliamperes (mA). If unsure, Ask an electrician.
  • If your sockets are not protected by an RCD, buy a good quality plug-in RCD adaptor from a good electrical shop, as a temporary measure. The safest option is to get a registered electrician to install permanent RCD protection to all the sockets you use, or might use, with your electrical garden equipment.
  • RCDs need to be tested quarterly. Just follow what it says on the little notice attached. This normally involves pressing the test button and checking that the RCD switches off the supply in the blink of an eye.
  • Regular testing is important, to ensure the RCD does its job in the event of a fault.
  • New fuseboards (17th Edition) are now fitted with 2 RCD's giving your property more protection than ever before. So, if mistakenly you hit a lighting cable whilst putting up a picture on the wall (for example), you will now have some protection, and the RCD will stop you getting electrocuted.

Do I need to get a certificate?

YES. Once the new Fuseboard has been installed, all the electrics should be tested and a certificate is issued. This shows the work has been carried out to a satisfactory level, and gives you peace of mind that the job has been done safely and correctly. Also local building control are notified on your behalf.

Do I need to inform local building control myself?

No. We do this for you, as we are NICEIC Approved Contractors and Part 'P' registered. This is very important and can stop you selling or renting your property in the future.


What is an EICR?

EICR = Electrical Installation Condition Report (formally known as a PIR or Periodic Inspection Report).

All electrical installations deteriorate with age and use. They should therefore be inspected and tested at appropriate intervals to check whether they are in a satisfactory condition for continued service. Such safety checks are commonly referred to as 'periodic inspection and testing'.

An EICR  will:

  • Reveal if any of your electrical circuits or equipment is overloaded.
  • Find any potential electric shock risks and fire hazards.
  • Identify any defective electrical work.
  • Highlight any lack of earthing or bonding.

Tests are also carried out on wiring and fixed electrical equipment to check that they are safe. A schedule of circuits is also provided, which is invaluable for a property.

How often is an EICR required?

Your electrics should be inspected and tested every:

  • 5-10 years for an owner-occupied property (depending on the condition of the property).
  • 5 years for a rented properties or every change of tenancy.

Who needs an EICR?

Other times when an EICR should be carried out are:

  • When a property is being prepared for letting.
  • Before selling a property or buying a previously-occupied property.

Who should carry out the EICR and what happens?

An Electrical Installation Condition Report should be carried out only by electrically competent persons, such as NICEIC registered electricians. They will check the condition of the electrics against the UK standard for the safety of electrical installations, BS 7671 – Requirements for Electrical Installations (IEE Wiring Regulations). The competent person will then issue an Electrical Installation Condition Report detailing any observed damage, deterioration, defects, dangerous conditions and any non-compliances with the present-day safety standard that might give rise to danger.



LED (light emitting diode) is a relatively new light source to the domestic market, which is growing almost daily. As a light source it is now comparable to an incandescent or halogen, it's more efficient than a fluorescent, and has the longest life span of any light source (30,000 - 50,000 hours). Dimming the LED is now becoming easier. Greenstone Electrical can either retro fit the LED lamps into existing spot lights or install new LED fittings. 

LED lights use only 10% of energy required to power your current halogen ceiling spot lights, but give the same light output, and last for more than x10 times longer. This will obviously save you money through electricity bills, lamp replacement, electricial call-out, and downtime in the workplace. Highly recommended.

Type of light – a bright, clear, directional light. The beam size depends on the number of LEDs put together.
Lifespan – upto 30,000 hours.  Colour temperature – 2,000 - 3,000 degrees Kelvin (similar to current outputs).


If left on for 12 hours a day, one 50 watt halogen spotlight will cost around £28.00 per year to run.

Compared to one 6 watt LED spotlight will only cost around £3.40 per year to run.

*Figures based on 1kw/h costing 13pence.


  • Long life span
  • Very cost effective, low voltage and low energy consumption
  • Low operating temperature• Available in a wide range of colours
  • Easy to colour match with existing lights.


  • Some products don’t allow for an LED to be changed easily with current products.
  • Expensive purchase price
  • Cannot be regularly dimmed, or a new dimmer switch is required.

Hopefully the above electrical safety advice has helped. Should you require any further assistance, please get in contact with us: greenstoneelectrical@yahoo.co.uk


Electricians in North London, East London, Islington, Camden, Hampstead, Essex