
What Does an Electrician Do
Discover what electricians do, from installations and repairs to testing and certification across homes, businesses and industrial sites.
Electricians are essential professionals who ensure the safe installation, maintenance and repair of electrical systems in homes, commercial properties and industrial settings. Their work powers everything from the lights in your kitchen to the data cabling in an office, and their expertise is critical for safety, functionality and compliance with UK regulations. In a world increasingly reliant on technology and connectivity, electricians do far more than just fix faulty sockets. This article explains the wide range of responsibilities electricians handle and why their role remains vital across every sector.
Core Responsibilities of an Electrician
At the heart of an electrician's role is the ability to work with electrical systems that power lighting, appliances, heating and other essential services. This includes installing new systems, inspecting existing ones and ensuring everything operates efficiently and safely. Domestic electricians typically focus on homes, flats and small residential properties, while commercial electricians work in shops, offices and public buildings. Industrial electricians may deal with heavy-duty equipment and high-voltage systems in factories, warehouses or construction sites.
Electricians are also responsible for diagnosing and fixing faults. Whether it is a flickering light, a tripping fuse board or complete power loss, electricians use diagnostic tools and their own experience to identify and resolve issues quickly. Preventive maintenance is another critical task, helping to reduce the likelihood of breakdowns and extending the life of electrical systems.
Installation Work
One of the most visible roles electricians play is installing new electrical systems. This can range from wiring a new-build property to setting up electrical systems in a renovated kitchen or bathroom. Electricians install lighting, switches, sockets, extractor fans and appliances such as ovens and boilers. In commercial or industrial settings, they may install fire alarm systems, CCTV, data cabling and large-scale machinery.
Installations must follow strict safety guidelines and conform to the latest edition of the IET Wiring Regulations (BS 7671). In the UK, Part P of the Building Regulations requires that most electrical work in domestic properties be notified to a local authority, unless the electrician is registered with a competent person scheme such as NICEIC or NAPIT. This ensures the work meets safety standards and is legally compliant.
Testing and Certification
Electricians also test electrical installations to make sure they are safe and functional. This includes initial verification of new work, periodic inspection of existing systems and issuing certificates to confirm compliance. For homeowners and landlords, having up-to-date Electrical Installation Condition Reports (EICRs) is essential. Electricians carry out these inspections and provide documentation that outlines the condition of the system, any defects found and whether it meets current standards.
Certification is a critical part of an electrician's work and is required when selling a property, renting to tenants or completing significant renovation projects. It offers peace of mind to clients and protects electricians by providing a record of their professional work.
Upgrading and Modernising Electrical Systems
Many electricians spend a large part of their time upgrading outdated systems to meet modern requirements. This could include replacing an old fuse box with a modern consumer unit, adding more sockets to a room, installing USB outlets or converting old lighting to energy-efficient LED alternatives. With the increasing demand for electric vehicle chargers, smart home technology and renewable energy systems like solar panels, electricians are often called on to integrate modern systems into older buildings.
These upgrades improve energy efficiency, reduce the risk of fire and bring properties up to legal and insurance standards. The work must be planned carefully to ensure minimal disruption and often requires coordination with other trades.
Health and Safety Responsibilities
Electricians work with potentially dangerous equipment and systems, so safety is paramount. They must follow health and safety procedures to protect themselves and those around them. This includes isolating circuits before working on them, using the right tools, wearing protective equipment and conducting risk assessments. In commercial and industrial settings, additional protocols may be required, such as working at height, handling heavy machinery or following site-specific safety rules.
Safety also extends to the work they produce. An electrician's job is not just about making something work but ensuring it will remain safe for years to come. Their work must withstand wear, weather and user error without posing a risk of electric shock or fire.
Advising Customers and Planning Jobs
Beyond physical tasks, electricians often advise customers on the best solutions for their needs. This includes suggesting energy-saving improvements, discussing power requirements or explaining legal obligations. They must be able to read blueprints, follow plans and work closely with other contractors on site. Good electricians are problem-solvers who take the time to understand a project and recommend the most effective and compliant approach.
Planning is a major part of any electrical project. Electricians must calculate cable routes, choose suitable components and sequence the work efficiently. In larger jobs, this involves coordinating with builders, plumbers or heating engineers to ensure systems do not interfere with each other.
Staying Up to Date with Regulations and Technology
The electrical trade is constantly evolving, with changes in regulations, technology and industry practices. Professional electricians commit to continuous development, attending refresher courses, staying informed on regulation updates and gaining new qualifications when required. This ensures their work remains compliant and that they can offer clients the latest, safest and most effective solutions.
For instance, recent changes in the wiring regulations may affect how circuits are protected or what types of cable are used. Electricians also need to keep pace with innovations such as battery storage, smart thermostats, and digital control systems to remain competitive in the modern marketplace.
Types of Electricians
There are several specialisms within the electrical trade. Domestic electricians focus on residential properties, while commercial electricians deal with shops, offices and schools. Industrial electricians handle more complex systems such as conveyor belts, control panels and high-voltage equipment in manufacturing plants. Maintenance electricians carry out regular checks and repairs, and installation electricians specialise in fitting new systems. Some electricians offer a mix of services, while others work exclusively in one area depending on their training and preferences.
Final Thoughts
Electricians do much more than wire plugs and install lights. Their role is multifaceted, blending technical skill with regulatory knowledge, safety awareness and customer service. From installing and maintaining complex systems to inspecting and certifying electrical work, electricians play a crucial role in keeping homes, businesses and public spaces running smoothly and safely. Their expertise supports everything from energy efficiency to smart home integration, making them essential figures in an increasingly connected world.

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