Commercial Electricians2026-08-17T10:57:07+01:00

Commercial Electrical Services Across London

Commercial Electricians in London

Electrical installations, repairs, maintenance, testing and power solutions for businesses, landlords and property professionals across London.

NAPIT registered • TrustMark registered • Fully insured • 5-year workmanship guarantee

Commercial Electrical Services for London Businesses

Reliable electrical support for installations, repairs, maintenance and ongoing commercial work

Fahri Electricians London provides commercial electrical services for businesses, landlords, property managers and facilities teams across London. We work in offices, shops, restaurants, hospitality venues, warehouses and other commercial premises, handling everything from new installations and alterations to fault finding, repairs, planned maintenance and remedial work.

As experienced commercial electrical contractors, we understand that electrical work often has to be planned around trading hours, staff, customers and access requirements. We communicate clearly, work methodically and, where practical, arrange work to minimise disruption to day-to-day operations.

Our wider commercial capability includes electrical testing and inspection, lighting, surge protection and business-continuity power solutions. These specialist services are introduced below, with more detailed information available through the relevant service pages.

Commercial Electricians London -Electricians Keeping Companies In London Connected, Safe & Powered - Fahri Electricians London

Commercial Electrical Support Built Around Your Business

Commercial electrical work often has to fit around customers, staff, trading hours, deliveries and access to the premises. Fahri Electricians London works with businesses, landlords, property managers and facilities teams to plan electrical work practically and keep disruption to a minimum.

Our commercial work covers new installations and alterations, fault finding, repairs, remedial work and planned maintenance, alongside specialist services such as testing, lighting and power protection.

Whether the requirement is a one-off repair or ongoing electrical support, we take the time to understand the site, the problem and how the work affects the wider operation. Fahri Electricians London is a family-run business led by Erdal Fahri and his son Adnan, with electrical experience dating back to 1988. Clients deal directly with people who understand the work, allowing for clear communication, straightforward advice and practical decisions when electrical issues need to be resolved.

Commercial Electrical Installations, Alterations & Upgrades

Electrical Work for New Spaces, Refurbishments & Changing Business Needs

Fahri Electricians London carries out commercial electrical installations, alterations and upgrades for offices, shops, restaurants, hospitality venues, warehouses and other business premises across London. Whether you are fitting out a new space, refurbishing an existing property or adapting the electrical installation as your business changes, we can plan the work around the requirements of the premises.

Our commercial work can include new circuits, wiring and rewiring, distribution board upgrades, power supplies, cabling, earthing and bonding, and remedial improvements to existing systems. We can also coordinate electrical work with lighting, equipment installations and wider refurbishment projects where required.

Before work begins, we assess the existing installation and what the premises need now and in the future. This helps us recommend a practical solution rather than simply adding to an electrical system without considering the wider load, layout and operational requirements.

Commercial Wiring & Rewiring

Commercial premises often evolve over time, with new equipment, altered layouts and additional electrical loads added as the business grows. Where existing wiring is outdated, damaged or no longer suitable for the demands being placed on it, we can assess the installation and recommend appropriate upgrades or rewiring.

Work can range from alterations to individual circuits through to more extensive commercial rewiring as part of refurbishments, changes of use or wider electrical upgrades.

Electrical Alterations & Remedial Works

We also carry out electrical alterations and remedial work where faults, deterioration or inspection findings identify areas that need attention. This can include replacing damaged components, correcting unsuitable alterations, improving earthing and bonding, upgrading distribution equipment and resolving defects identified during electrical testing.

Where remedial work follows an inspection or EICR, we can explain the findings, prioritise the work required and coordinate the repairs with the relevant testing and certification process.

Electrical Work Planned Around Your Premises
  • New commercial electrical installations
  • Commercial wiring and rewiring
  • Additional circuits and power supplies
  • Distribution board upgrades
  • Single-phase and three-phase alterations
  • Power and data cabling
  • Electrical work for refurbishments and fit-outs
  • Earthing and bonding improvements
  • Remedial upgrades to existing installations
  • Electrical supplies for new equipment
  • Alterations to accommodate changing business needs
  • Coordination with lighting and other electrical systems
Need Commercial Electrical Work in London?

Planning an installation, upgrade or repair? Speak directly with the Fahri team about your premises, the work required and the best way to minimise disruption to your business.

📞 Call 020 8819 1340. 📩 Request a Commercial Quote 

Commercial Fault Finding, Repairs & Maintenance

Keeping Electrical Problems From Disrupting Your Business
Commercial Electricians London - Commercial Wiring & Rewiring - Fahri Electricians London

Electrical faults in commercial premises can disrupt staff, customers, equipment and day-to-day operations. Fahri Electricians London provides fault finding, repairs and electrical maintenance for businesses across London, investigating problems methodically and explaining what needs to be done before repair work proceeds.

We can help with issues including repeated circuit trips, loss of power, damaged accessories, distribution-board faults, deteriorated wiring and electrical problems affecting equipment or individual areas of a premises. Where possible, we aim to identify the underlying cause rather than simply dealing with the immediate symptom.

Alongside reactive repairs, we also provide planned electrical maintenance to help businesses identify developing problems, deal with wear and deterioration and carry out necessary electrical alterations before faults become more disruptive. This can be arranged as one-off maintenance work or as part of an ongoing relationship where regular electrical support is required.

Commercial Electrical Fault Finding & Repairs

Intermittent faults, repeated tripping and unexplained power problems can be difficult to diagnose without a structured investigation. We test the affected circuits and equipment, assess the condition of the installation and identify likely causes before recommending the appropriate repair.

Depending on the fault, work may involve repairing or replacing damaged components, correcting unsuitable connections, resolving overloaded circuits or isolating unsafe parts of the installation until further work can be completed.

Planned Electrical Maintenance for Businesses

Planned maintenance gives businesses an opportunity to deal with electrical wear, defects and changing requirements before they result in unexpected downtime. It can include checking parts of the installation that are showing signs of deterioration, carrying out minor repairs and alterations, and identifying work that should be scheduled for a later date.

For landlords, property managers and facilities teams, planned maintenance can also provide a more organised way to manage electrical issues across occupied commercial premises and coordinate work around access, trading hours and other contractors.

Reactive & Planned Electrical Support
  • Commercial electrical fault finding
  • Repairs to faulty circuits and electrical supplies to equipment

  • Repeated tripping and power-loss investigations
  • Damaged sockets, switches and electrical accessories
  • Distribution board and circuit faults
  • Loose, damaged or deteriorated connections
  • Overheating and overloaded circuit problems
  • Remedial repairs following inspections
  • Planned electrical maintenance
  • Preventative checks on commercial installations
  • Electrical alterations during maintenance visits
  • Support for landlords, property managers and facilities teams
  • Out-of-hours work by arrangement
  • Ongoing electrical support for commercial premises

Commercial Lighting & Energy-Efficient Upgrades

Lighting Designed Around How Your Business Works

Lighting in commercial premises needs to work around the way the space is actually used. Fahri Electricians London installs, upgrades and maintains lighting for offices, shops, restaurants, hospitality venues, warehouses and other commercial properties across London.

Our work includes new lighting installations, LED upgrades, alterations during refurbishments, smart controls, emergency lighting, external lighting and repairs to existing systems. We can help businesses improve the practicality of their lighting while considering energy use, maintenance requirements and how the space needs to operate.

For more detailed information about lighting design, smart lighting, indoor and outdoor installations and specialist lighting options, explore our Lighting Installation Services in London.

Emergency Lighting for Commercial Premises

Emergency lighting requirements depend on the premises, escape routes and the findings of the fire risk assessment. Where emergency lighting is required, it should provide suitable illumination if the normal lighting fails and should be checked and maintained as part of the premises’ fire-safety arrangements.

Businesses and others responsible for non-domestic premises should ensure appropriate fire-safety measures are in place and maintained. See the GOV.UK workplace fire-safety guidance for further information.

Commercial Lighting Solutions
  • New commercial lighting installations
  • LED lighting upgrades
  • Office, retail and hospitality lighting
  • Warehouse and high-bay lighting
  • Smart controls, sensors and automation
  • Emergency lighting installation and testing
  • External and security lighting
  • Lighting repairs and maintenance
  • Lighting alterations for refurbishments and fit-outs

Commercial Power Protection & Business Continuity

Protecting Critical Systems and Reducing Disruption From Power Problems
Commercial Electricians London - SPD’s & Surge Protection London - Fahri Electricians London.

Unexpected power problems can interrupt trading, affect critical equipment and create unnecessary downtime. Fahri Electricians London provides commercial power-protection and continuity solutions designed around the electrical requirements of the premises and the systems that need to remain protected.

Our work includes surge protection, SPDs, UPS and battery backup systems, automatic transfer switching, generator-related backup solutions, voltage regulation and other measures that can help protect equipment and maintain essential electrical supplies when problems occur.

The right solution depends on the site, the electrical installation and which systems are most important to the operation of the business. We can assess the existing setup, discuss the risks and priorities, and recommend a practical approach for protecting critical equipment and reducing disruption.

Surge Protection & SPDs

Electrical surges and voltage spikes can damage sensitive equipment and shorten the working life of electrical and electronic systems. Surge Protection Devices can be incorporated into an electrical installation to help limit transient overvoltages and reduce the risk of damage to connected equipment.

We can assess existing surge protection, install suitable SPDs and carry out upgrades where additional protection is required for commercial equipment, IT systems or other important electrical loads.

Backup Power & Continuity Solutions

Where loss of electrical power could significantly affect operations, backup systems can help maintain essential equipment or provide a controlled transition to an alternative supply.

Depending on the premises and requirements, solutions may involve UPS or battery backup, automatic transfer switching, generator integration, monitoring and other supporting equipment. We plan these systems around the loads that need protection and how the business needs to operate during a power interruption.

Power Protection & Continuity Solutions
  • Surge Protection Devices (SPDs)
  • Protection against voltage spikes and electrical surges
  • UPS and battery backup systems
  • Automatic transfer switching
  • Generator backup power integration
  • Voltage regulation and load balancing
  • Protection for critical electrical equipment
  • Power-failure monitoring
  • Backup power for offices and commercial premises
  • Solutions for IT and data-dependent equipment
  • Testing and maintenance of power-protection systems
  • Power-continuity solutions designed around site requirements

Electrical Testing, Inspection & Compliance

Clear Reporting, Practical Advice & Remedial Support

Businesses need to keep electrical installations and equipment maintained so they do not present a danger. Inspection and testing can help identify deterioration, faults and other problems before they develop into more serious electrical or operational issues.

Fahri Electricians London provides commercial EICR and fixed wire testing for businesses and managed commercial premises across London. We inspect the condition of the fixed electrical installation, identify defects or areas requiring further investigation and provide clear information about any remedial work that may be required.

We can also carry out electrical equipment inspection and testing, including PAT testing where it forms part of an appropriate maintenance programme. Where testing identifies faults, our commercial electricians can coordinate the necessary repairs and remedial work rather than leaving you to arrange a separate contractor.

Commercial EICR & Fixed Wire Testing

An Electrical Installation Condition Report assesses the condition of the fixed electrical installation, including circuits, distribution equipment, wiring and protective measures. The inspection can identify deterioration, defects, signs of overloading and other issues that may require further investigation or remedial work.

Once testing is complete, we’ll explain the findings and what action is recommended. Where repairs or improvements are required, Fahri Electricians can also carry out the remedial electrical work and coordinate any subsequent testing or documentation. For general guidance on maintaining electrical installations safely, see the HSE electrical safety guidance.

PAT Testing for Businesses

Portable appliance testing can form part of a business’s electrical equipment maintenance programme, particularly where equipment is regularly moved, heavily used or more likely to become damaged. The appropriate inspection and testing regime depends on the type of equipment, how it is used and the environment in which it operates. The HSE guidance on portable appliance testing explains this risk-based approach in more detail.

Commercial Electrical Testing
  • Commercial EICR and fixed wire testing
  • Inspection of circuits, distribution boards and fixed wiring
  • Identification of deterioration and electrical defects
  • Testing for overloaded circuits and installation faults
  • Electrical condition reports and recommendations
  • Remedial work following inspection findings
  • PAT testing and electrical equipment checks
  • Testing for offices, retail, hospitality and other workplaces
  • Out-of-hours testing by arrangement
  • Reports and documentation for your records
  • Coordination of testing and subsequent repair work

Your Safety, Your Power: Our Priority

Why Choose Fahri Electricians for Commercial Electrical Work?

Commercial electrical work is about more than completing the job itself. Businesses also need clear communication, practical planning, reliable attendance and electrical work that can be coordinated around access, staff, customers and day-to-day operations.

Fahri Electricians London combines hands-on electrical experience with a direct, family-run service. We work with businesses, landlords, property managers and facilities teams across London on installations, repairs, maintenance, testing and wider commercial electrical projects.

Commercial Electricians - Fahri Electricians London
Flexible Around Your Business

Work can be planned around access, trading hours and operational requirements, with out-of-hours attendance available by arrangement to help minimise disruption to staff, customers and day-to-day business activity.

Reliable Emergency Electricians - Fahri Electricians London
Commercial Experience

Electrical experience dating back to 1988, with work across offices, retail, hospitality and other commercial premises. Our team brings practical experience to installations, repairs, maintenance and wider commercial electrical projects.

Domestic Electricians - Fahri Electricians London
Direct Communication

Speak directly with the Fahri team, with clear advice, practical updates and straightforward explanations throughout the work. We keep you informed about findings, available options and the next steps required.

Certified Testing & Inspections - Fahri Electricians London
Registered, Insured & Guaranteed

NAPIT registered, TrustMark registered, fully insured and backed by a 5-year workmanship guarantee. Commercial clients can have confidence in an established electrical contractor with recognised credentials and clear accountability.

Commercial Electricians Across London

Fahri Electricians London provides commercial electrical services across Greater London for businesses, landlords, property managers and facilities teams.

From our base in Blackheath, South East London, we support commercial premises across the capital with installations, alterations, fault finding, repairs, maintenance, testing, lighting and power-protection work.

Explore our Greater London service areas for more information about the boroughs and local communities we cover.

  • Based in Blackheath, South East London
  • Commercial electrical support across Greater London
  • Serving all 32 London boroughs

Our commercial project portfolio shows the type of electrical work Fahri Electricians London carries out for businesses across the capital, from office refurbishments and electrical alterations to distribution upgrades, lighting, testing and remedial work.

Every commercial property presents different access, operational and electrical requirements. These projects provide real examples of how we plan and carry out work around the needs of the premises and the people using them.

Planning a commercial electrical project?

Speak to the Fahri Electricians team about the premises, the work required and how it can be planned around your business.

Commercial Electrician FAQs

Commercial electrical work often raises practical questions about access, disruption, testing, maintenance and how work can be coordinated around day-to-day operations. Below you’ll find answers to some of the questions businesses, landlords, property managers and facilities teams commonly ask Fahri Electricians London.

If your requirement is more specific, contact the Fahri Electricians team and tell us about the premises and the electrical work you need.

What commercial electrical services do you provide in London?2026-08-14T14:34:30+01:00

Fahri Electricians London provides commercial electrical installations, alterations, fault finding, repairs, planned maintenance, testing, lighting and power-protection solutions across London. We work in offices, shops, restaurants, hospitality venues, warehouses and other commercial premises.

Do you work with landlords, property managers and facilities teams?2026-08-14T14:34:56+01:00

Yes. We work with businesses, commercial landlords, property managers and facilities teams on both one-off electrical work and ongoing requirements. This can include repairs, alterations, planned maintenance, testing and coordinating electrical work around occupied premises.

Can commercial electrical work be carried out outside normal business hours?2026-08-14T14:35:19+01:00

Where practical, work can be arranged around access requirements, trading hours, staff and customers to help minimise disruption. Out-of-hours attendance is available by arrangement depending on the work required and site circumstances.

Do you provide planned and reactive electrical maintenance?2026-08-14T14:35:41+01:00

Yes. We provide reactive support for electrical faults and repairs as well as planned electrical maintenance. Planned work can help identify deterioration, deal with developing electrical problems and schedule repairs or alterations before they cause greater disruption.

Can you carry out commercial EICR, fixed wire and PAT testing?2026-08-14T14:39:08+01:00

Yes. Fahri Electricians provides commercial EICR and fixed wire testing as well as electrical equipment inspection and PAT testing where appropriate. If testing identifies defects or remedial work, our commercial electricians can also coordinate the necessary repairs and subsequent work.

Which areas of London do your commercial electricians cover?2026-08-14T14:36:52+01:00

Fahri Electricians London provides commercial electrical services across Greater London and all 32 London boroughs. We are based in Blackheath, South East London, and work with commercial clients across the capital.

Request a Commercial Electrical Quote

Tell Us About Your Premises and the Electrical Work You Need

Whether you are planning a new installation, refurbishment or electrical upgrade, need help with a fault or repair, or are looking for planned electrical maintenance, tell us what you need and a member of the Fahri team will get back to you.

Include as much information as you can about the premises, the electrical work required and any access, trading-hour or timing requirements. This helps us understand the job and advise on the next steps.

For an urgent electrical problem, call 020 8819 1340 for direct assistance.

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