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Managing Electricity More Efficiently

LED Lighting

LED Lighting



IP66 Outdoor Rated Variable Speed Drive

BMS Panels

BMS Panels

BMS Control Panel London Energy Centre



Power Factor Correction Panel

3L Electrical Limited offer a range of energy efficient solutions that not only assist in reducing costly overheads but also help to eliminate environmentally damaging carbon emissions. Our philosophy of ‘managing electricity more efficiently’ means that we strive to source products that are kind to the environment whilst also offering cost saving potential.

The energy saving products and services we offer include:

LED Lighting Design, Installation and Refurbishment
Supply and Installation of Variable Speed Drives
Manufacture and Installation of Power Factor Correction Panels
Manufacture and Installation of BMS Control Panels

In addition, we can install "smart" meters to monitor low voltage electricity usage.  These are particularly useful when undertaking energy efficiency projects as the information recorded by the "smart" meter can be accessed remotely and energy usage analysed and managed more effectively. 

Energy meters provide the means through which to identify where and when energy is being wasted and can thus reduce unnecessary energy consumption and carbon emissions. ​


Electrical Installations and Refurbishment Projects
Specialist Lighting and Energy Saving
Design and Manufacture

3L Electrical Limited undertake a variety of electrical installation works including Power, Lighting, BMS and Containment systems within both the Industrial and Commercial sectors. We have completed projects in a variety of settings including Hospitals, Hotels, Schools/Universities, Financial Institutions, Commercial Buildings, Warehousing and Energy Centres. Our team of qualified engineers have a range of skills and can adapt to almost any electrical working environment. Our work is carried out to the highest level and we always strive to supply our clients with the best service possible.

Our ethos centres on "Managing electricity more efficiently". Consequently, we offer a variety of electrical options which help our clients to eliminate energy wastage whilst assisting them in improving their carbon footprint. We can provide energy saving solutions which can both monitor and reduce the consumption of energy used. These include LED lighting solutions, Variable Speed Drives, Soft Starters and Power Factor Correction. We can also install Energy Meters which will enable the continued monitoring and evaluation of electrical usage and assist in helping our clients to manage their electricity consumption more efficiently.

Within our fully equipped workshop, we design and develop bespoke Control Panels to suit a range of different applications including Building Maintenance Systems, Power Factor Correction, Auto Changeover, Variable Speed Drives and Starter Panels.These Control Panels are constructed from premium quality steel with a baked on paint finish (different colour finishes available) and manufactured using high grade industrial control gear from established manufacturers within the Industry to ensure reliability and longevity. All our Control Panels are manufactured to meet the exact requirements of our clients.


3L Electrical Limited are NICEIC accredited and have the expertise to undertake routine/periodic fixed wire electrical testing and inspection to assess the risks and dangers that can cause workplace injuries.  It is essential that all employers take responsibility for ensuring that their employees and visiting members of the public are safe and free from harm and this is in accordance with The Electricity at Work Regulations 1989 which came into force on the 1st April 1990.


3L Electrical pride themselves on providing a comprehensive service.  This combines the professionalism of our on-site team who are all qualified to the latest edition of BS 7671 and our office administrators who generate a detailed report outlining and highlighting all compliant and non-compliant aspects of an electrical installation.

As we are part of the Approved Contractor and Domestic Installer Scheme, we can offer the following services:

  • Electrical Condition Reports

  • Electrical Installation Certificates

  • Minor Electrical Installation Works Certificates

  • Emergency Lighting Periodic Inspection and Testing Certificates

  • Domestic Electrical Installation Certificates

  • Domestic Electrical Installation Condition Reports

In addition, we also provide the following services:

  • Portable Appliance Testing (PAT)

  • Thermal Imaging

  • Emergency Lighting Testing and Inspection


Why is Fixed Wire Electrical Testing and Inspection so important?


Fixed Wire Electrical Testing and Inspection guarantees that businesses adopt safe electrical working practices and are compliant with The Electricity at Work Regulations 1989.  It helps businesses to identify defective electrical components and undertake corrective remedial works which helps to assure workers and members of the public that they are safe and free from harm.  Many deaths and injuries arise as a result of inadequately maintained electrical installations and electrical equipment.  Poor, faulty and incompetently installed electrical installations and appliances can be the cause of fire and electric shocks.

3L Electrical Limited offer a range of routine servicing and maintenance options and can offer periodic Servicing Contracts on the following:

Starter Panels

Variable Speed Drives

Gas Leak Detection

Power Factor Correction Panels

Emergency Lighting

Our routine servicing and maintenance programs incorporate:

A visual inspection which is necessary to look for:

  • Evidence of damage caused by dirt, loose parts or foreign bodies

  • Evidence of moisture and/or dirt build-up

  • Evidence of degradation of foundation, bed plates and anchor bolts

  • Evidence of overheating of terminals

  • Verification that air inlets are not blocked

  • Unusual noises, leaking oil seals or high vibration

  • Discolouration of terminals

Tightening of all terminals to correct torque levels (in accordance with the manufacturer's guidelines)

Clean Panels and Air Vents


Why is it so important to undertake regular servicing and maintenance?
Electrical equipment failures account for millions of pounds in damage and lost business every year. It is therefore imperative that active steps are taken to undertake routine preventive maintenance programs. The failure rate of electrical equipment is three times higher for components that are not part of a scheduled preventive maintenance program as compared with those that are. In addition, a planned Preventative Maintenance Program allows Maintenance Teams to schedule the system outage at a time of their choosing rather than having to correct major problems resulting from an untimely and unexpected failure.




For assistance please call (020) 8887 1620 or alternatively complete the following form:


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To apply for a job with 3L Electrical Limited, please send a covering letter together with your C.V. to:

Contact Us

3L Electrical Limited
Unit A, Horizon Business Centre

84 Goodwin Road


Tel: (020) 8887 1620

Fax: (020) 8807 4076


3L Electrical Ltd was formed in 2006 with the intention of providing a dedicated and professional electrical engineering service. Quality is at the heart of what we do and as such we only purchase premium quality products that are reliable and robust. Our friendly, polite and efficient team of Field Service Engineers have a wealth of combined experience and always undertake works in a clean, efficient and courteous manner.

As a member of the National Inspection Council for Electrical Installation Contracting, all our engineers are qualified to the latest edition of BS7671 and have all undertaken Health and Safety training. We are proud of our team and are consequently committed to the development of each member of staff from our Apprentices through to our Project Managers. Through continual training such as First Aid, Asbestos Awareness, IPAF, PASMA to name but a few examples, you will always be assured that 3L Electrical conform to all current standards of good practice.

At the head of our team is our Managing Director, Michael Button. Michael has worked in this industry for over 30 years and has a wealth of both technical and practical electrical knowledge. He is always available to help resolve any technical issues that our clients may have and takes a hands-on approach to his business.  His experience, professionalism and respectful and courteous manner is welcomed by all who meet him.

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