Commercial Electrician London Commercial Electrical Contractors for Offices, Retail and Business Premises
A commercial electrical fault doesn’t just cause inconvenience, it can stop trading, disrupt staff, put customers at risk, or bring a compliance inspection down on a business at the worst possible time. Offices lose productivity when the lighting circuit trips. Restaurants lose covers when the kitchen loses power mid-service. Retail units lose sales when the tills and refrigeration go down together.
Safety Spectrum London is a team of electrical contractors providing commercial electrician services across Greater London for offices, retail units, restaurants, warehouses, schools, healthcare premises and multi-site portfolios. Whether you’re searching for a commercial electrician near me, local electricians for an ongoing contract, or an emergency electrician for an urgent fault, our commercial electricians carry out fault finding, installations, planned maintenance, Commercial EICR testing, PAT testing and full compliance documentation, all completed by NICEIC and NAPIT approved, qualified electrical engineers to BS 7671 and applicable workplace electrical safety law.
What Does It Cost to Hire a Commercial Electrician in London?
Our electrical diagnostic and fault-finding service starts from £105, with commercial jobs typically taking longer than residential ones given the scale and complexity of business electrical systems. Commercial EICR pricing depends on the size and electrical complexity of the property. Get in touch with your premises type and circuit count for a fixed quote.
Commercial Electrical Work for Every Kind of Business Premises
Commercial electrical systems carry heavier, more constant loads than domestic ones, and the consequences of a fault are different too, it’s not just inconvenience, it’s downtime, lost trade, and in some sectors, a genuine safety incident involving staff or the public.
Offices and corporate workplaces, fault finding, socket and lighting installation, distribution board work, periodic inspection and testing, PAT testing, emergency lighting and planned maintenance, scheduled to minimise disruption to staff and visitors.
Retail units, shops and shopping centres, electrical repairs, testing and upgrades where a fault can directly affect lighting, tills, refrigeration, security systems and trading hours.
Restaurants, cafés, bars and hotels, kitchen circuit repairs, lighting installation, distribution board work, appliance supplies, emergency lighting and testing, scheduled around service hours to avoid disrupting trade.
Warehouses and industrial premises, three-phase electrical work, distribution board and sub-main installation, industrial fault finding, high-level and warehouse lighting, and machinery supplies.
Schools and healthcare premises, periodic inspection and testing, lighting and socket repairs, emergency lighting, PAT testing and fault finding, with DBS-checked engineers available where required for these environments.
Multi-site and portfolio clients, estate agents, block managers and portfolio landlords benefit from consistent inspection scheduling and reporting across multiple properties, so nothing falls through the cracks between sites.
Every Commercial Sector We Serve, Local Electricians for Every Type of Business
Different commercial sectors carry very different electrical demands, usage patterns and compliance obligations. Whether you need an electrician in london, an electrical contractor near me, or a 24 hour electrician for an out-of-hours emergency, our commercial electricians work across:
Offices and Corporate Workplaces, fault finding, socket and lighting work, distribution boards, periodic testing, PAT testing, emergency lighting and planned maintenance.
Retail Units and Shopping Centres, repairs, testing and upgrades covering lighting, tills, refrigeration, security systems and shopfront electrics.
Restaurants, Cafés, Bars and Hotels, kitchen circuits, lighting, distribution boards, appliance supplies and emergency lighting, scheduled around service hours.
Warehouses and Industrial Premises, three-phase work, distribution boards, sub-mains, industrial fault finding and machinery supplies.
Schools, Nurseries and Educational Facilities, periodic testing, lighting and socket repairs, emergency lighting and PAT testing, with DBS-checked engineers where required.
Healthcare Facilities, Clinics and Care Homes, testing, maintenance and installation carried out with attention to occupancy, operational continuity and vulnerable building users.
Gyms and Leisure Facilities, electrical maintenance, lighting upgrades, equipment supplies and PAT testing for premises with heavy equipment loads and high footfall.
Salons, Pharmacies and Independent Shops, general commercial electrical repairs, testing and upgrades scaled to smaller premises.
Supermarkets and Convenience Stores, refrigeration-adjacent electrical work, lighting and distribution board maintenance for high-footfall, always-open premises.
Construction Sites, 110V site supplies, temporary electrical installations, site lighting and tool/equipment PAT testing.
Embassies and Institutional Premises, discreet, professional electrical work coordinated around access controls and security procedures.
HMOs and Managed Residential Blocks, communal electrical systems, landlord supplies and shared-building compliance work, alongside our dedicated Residential Electrician London service for the individual units.
Mixed-Use and Multi-Tenant Buildings, communal areas, plant rooms, service cupboards and external lighting alongside individual commercial units.
Property Management Companies and Facilities Managers, planned and reactive electrical support across an entire managed estate, not just a single site.
Complete Commercial Electrical Services
Our commercial electricians carry out the full range of electrical repair and electrical maintenance work businesses across London need.
Electrical repairs and fault finding, diagnosing and repairing faulty wiring, tripping circuits, broken sockets, damaged switches, loose connections, burnt terminals and RCD faults, using proper diagnostic testing rather than guesswork. See Electrical Diagnostic for our fault-finding process, from £105.
Socket repair and socket replacement, additional socket installation, double socket replacement, USB-A and USB-C combination sockets, outdoor weatherproof sockets, and burnt or overheating socket replacement. Standard sockets have no serviceable internal parts, so a faceplate showing black marks or heat damage means replacement, not a repair.
Lighting installation, replacement and repair, office lighting, retail and shopfront lighting, warehouse and high-bay lighting, LED upgrades, downlights, and commercial and communal-area emergency lighting. See our Emergency Lighting Certificate service for the compliance side of emergency lighting specifically.
Electrical rewiring, full and partial commercial rewiring for offices, retail units and older commercial buildings where the existing installation can no longer safely support current demand.
Consumer unit and distribution board work, installation, replacement and upgrades with RCD, RCBO and surge protection, appropriately sized for commercial load. See Fuse Box & Consumer Unit Installation.
PAT testing, visual inspection, electrical testing and instant digital reporting for office IT equipment, commercial kitchen appliances and general business equipment.
Commercial EICR and fixed wire testing, full condition reporting on a business’s fixed electrical installation; see Commercial EICR and Fixed Wire Testing.
EICR remedial work, completing whatever a failed or unsatisfactory EICR identifies, through to a satisfactory certificate; see EICR Remedial Work.
Smoke alarm and carbon monoxide alarm services, installation, servicing, replacement and ongoing maintenance of smoke, heat and carbon monoxide alarms across commercial premises, communal areas and HMOs. Correctly sited, mains-powered and interlinked alarm systems where required, with alarm heads replaced and systems tested as part of a planned maintenance visit rather than left until something fails.
Tripping circuit diagnosis and repair, identifying the actual cause of a repeatedly tripping circuit or fuse board, rather than repeatedly resetting the protective device and leaving the underlying fault unresolved.
Three-phase and high-capacity electrical work, sub-mains, distribution boards and machinery supplies for warehouses, industrial units and larger commercial premises.
Appliance and equipment connections, safe electrical connection of fixed commercial equipment, from commercial kitchen appliances to retail and office equipment.
Our Process for Electrical Repairs, Installations and Inspections
Initial enquiry and assessment of electrical requirements
Transparent quotations and explanation of recommended work
Safe electrical work carried out by qualified engineers
Final testing, verification and certification
Commercial Consumer Units, Distribution Boards and Socket Work
Older or overloaded commercial distribution boards can fall well short of what a modern business actually demands from its electrical supply.
We install and upgrade consumer units and distribution boards with RCD, RCBO and surge protection, metal enclosures, clearly labelled circuits and appropriate spare capacity for growing commercial demand. Every replacement is inspected, tested and certified.
For sockets and switches, we supply and install MK and Crabtree accessories as standard, single, double and triple sockets, USB-A and USB-C combination sockets, and outdoor weatherproof sockets. Standard sockets don’t have serviceable internal parts, so when a socket shows signs of failure or overheating, black marks or a warm faceplate are the two most common signs, replacement is the correct fix, not a temporary patch.
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Commercial EICR Testing and Certification
An Electrical Installation Condition Report for commercial premises assesses the condition of a business’s fixed electrical installation, distribution boards, protective devices, earthing and bonding, wiring condition, circuits, polarity, RCD operation and signs of overheating.
Under the Electricity at Work Regulations 1989, all commercial premises must have their electrical installation periodically inspected and tested to ensure safety and prevent workplace hazards. This is typically required every 5 years, or every 1–3 years for higher-risk environments such as schools, gyms, medical facilities, workshops and factories.
All commercial testing is carried out to a written RAMS (Risk Assessment & Method Statement) for full HSE compliance, with minimal disruption to your business. Reports and certificates are typically issued within 24–48 hours, and where issues are identified, we quote and complete remedial works promptly to issue a satisfactory certificate. See our fixed wire testing page for the technical detail behind an EICR, and our EICR remedial work page for what happens if your report comes back with observations.
Commercial properties typically cost more to inspect than residential ones, given larger wiring networks and more complex systems, but pricing is confirmed upfront before work begins, not after.
PAT Testing for Businesses
Every business with staff, tenants or customers using plug-in equipment has a duty to keep that equipment safe. Our PAT testing service provides fast, efficient testing with instant digital reports, covering everything from office IT equipment to commercial kitchen appliances, so you have a clear record protecting staff, tenants and customers alike.
Emergency Lighting for Commercial Premises and HMOs
Emergency lighting is a legal safety requirement in most commercial buildings and HMOs, not an optional extra. See our Emergency Lighting Certificate service for testing, repair and certification of emergency lighting systems, ensuring your building meets current legal and safety standards.
Support for Landlords, Managing Agents and Portfolio Clients
If you manage multiple commercial properties, consistency is what actually saves you time, not chasing five different inspection dates across five different buildings. We help estate agents, block managers and portfolio landlords streamline inspections, reporting and follow-up work across a portfolio, with bulk compliance packages available for portfolio landlords and letting agencies.
We currently support over 250 landlords and 40 letting agencies across London with electrical compliance work, with flexible booking around tenants and minimal disruption as standard practice.
Our Commercial Electrical Work Process
- Contact our team, tell us about your premises type, the issue or service needed, and any access requirements.
- We confirm scheduling, commercial work is planned around your trading hours or operational needs wherever possible.
- Inspection and diagnosis, our engineer attends and carries out the necessary testing to establish the cause or scope of work.
- Explanation and quotation, we confirm findings and pricing clearly before proceeding with anything beyond the agreed scope.
- Work completed, using suitable materials and recognised commercial installation methods, with RAMS compliance where applicable.
- Testing and certification, completed work is tested, and relevant certificates or reports are issued within the timeframes stated above.
Why Businesses Choose Safety Spectrum London
- NICEIC and NAPIT approved commercial electricians, and electrical contractors you can trust with an active business
- Commercial EICR reports issued within 24–48 hours
- All testing carried out to written RAMS for full HSE compliance
- Over 6 years supporting London businesses and portfolio landlords
- Support for 250+ landlords and 40+ letting agencies across London
- DBS-checked, fully insured engineers across all London boroughs
- Bulk compliance packages for multi-site and portfolio clients
- Transparent pricing confirmed before work begins
- Minimal-disruption scheduling around trading hours
Areas We Cover for Commercial Electrical Work — Your Local Commercial Electrician
Whether you’re looking for electricians london, an electrician london, or local electrician near me who understands commercial premises specifically, we provide commercial electrician services across Central, North, North West, West, South West, South, South East and East London. For dedicated regional coverage, see our North London, East London, Central London, West London and South London hub pages, which cover both commercial and residential inspections.
Central London — Westminster, the City of London, Holborn and Covent Garden (WC1, WC2); Soho, Mayfair, Marylebone and Fitzrovia (W1); Bloomsbury (WC1); St James’s, Pimlico, Victoria and Belgravia (SW1); the South Bank (SE1); Knightsbridge and Chelsea (SW3, SW7); Kensington; Paddington and Bayswater (W2); and Notting Hill (W11). See also our area pages for Pimlico, Notting Hill and South Bank, Paddington, Chelsea, Victoria, Soho, Bloomsbury and Knightsbridge, Marylebone, Bayswater, Holborn and Fitzrovia and Westminster.
North London — Highgate (N6), Muswell Hill (N10), Crouch End (N8), Finsbury Park (N4), Archway (N19), Hampstead (NW3), Golders Green (NW11), Finchley (N2, N3, N12), Mill Hill (NW7), Totteridge and Whetstone (N20), Barnet (EN4, EN5), Enfield Town (EN1, EN2), Palmers Green (N13), Winchmore Hill (N21), Southgate (N14), Edmonton (N9, N18), Bounds Green (N11), Wood Green and Alexandra Palace (N22), and Holloway and Islington (N7, N1).
North West London — Cricklewood (NW2), Kilburn (NW6), Willesden, Harlesden and Neasden (NW10), Wembley and Alperton (HA0, HA9), Kingsbury and Queensbury (NW9), Kenton (HA3), Harrow and South Harrow (HA1, HA2), Pinner (HA5), Ruislip (HA4), Stanmore (HA7), Edgware (HA8), Colindale (NW9), Hendon (NW4), Brent Cross (NW2), and Swiss Cottage (NW3).
West London — Acton (W3), Chiswick (W4), Ealing (W5), West Ealing (W13), Hanwell and Northfields (W7), Hammersmith (W6), Shepherd’s Bush and White City (W12), Holland Park (W8), West Kensington (W14), Southall (UB1, UB2), Brentford (TW8), Isleworth and Osterley (TW7), Hounslow (TW3), Feltham (TW13, TW14), Hayes and Harlington (UB3), Uxbridge (UB8), and West Drayton (UB7).
South West London — Putney and Southfields (SW15), Wandsworth and Earlsfield (SW18), Clapham Junction and Battersea (SW11), Balham (SW12), Tooting (SW17), Wimbledon (SW19), Raynes Park (SW20), Morden (SM4), Colliers Wood (SW19) and Mitcham (CR4), Streatham and Norbury (SW16), Richmond (TW9, TW10), Twickenham (TW1, TW2), Teddington (TW11), Hampton (TW12), Kingston upon Thames (KT1, KT2), Surbiton (KT5, KT6), and New Malden (KT3).
South London — Brixton and Stockwell (SW2, SW9), Clapham (SW4), Vauxhall (SW8), Kennington (SE11), Elephant and Castle (SE1), Camberwell (SE5), Peckham (SE15), Dulwich (SE21, SE22), Herne Hill (SE24), Crystal Palace (SE19), West Norwood (SE27), Upper Norwood (SE19), South Norwood (SE25), Thornton Heath (CR7), Croydon (CR0), Purley (CR8), Coulsdon (CR5), and Addiscombe, Shirley and Selhurst (CR0).
South East London — Deptford (SE8), New Cross (SE14), Brockley (SE4), Lewisham (SE13), Catford and Hither Green (SE6), Blackheath (SE3), Greenwich (SE10), Eltham (SE9), Woolwich and Plumstead (SE18), Abbey Wood and Thamesmead (SE2), Bexleyheath (DA6, DA7), Welling (DA16), Sidcup (DA14, DA15), Chislehurst (BR7), Bromley (BR1, BR2), Beckenham (BR3), Orpington (BR6), and Penge, Anerley and Grove Park (SE20).
East London — Shoreditch, Hoxton, Whitechapel and Stepney (E1, E2), Bethnal Green (E2), Poplar and Canary Wharf (E14), Bow (E3), Stratford (E15), Forest Gate (E7), Plaistow (E13), West Ham (E15), East Ham (E6), Beckton and Canning Town (E16), Barking (IG11), Dagenham (RM8, RM9, RM10), Ilford (IG1), Seven Kings and Goodmayes (IG3), Chadwell Heath (RM6), Romford (RM1–RM3), Hornchurch (RM11, RM12), Upminster (RM14), Wanstead and Leytonstone (E11), Leyton (E10), Walthamstow (E17), Chingford (E4), and Woodford Green (IG8).
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Frequently Asked Questions (FAQ)
Do commercial premises legally need an EICR?
Yes. Under the Electricity at Work Regulations 1989, all commercial premises must have their electrical installation periodically inspected and tested — typically every 5 years, or every 1–3 years for higher-risk environments such as schools, gyms, medical facilities, workshops and factories.
How long does a Commercial EICR take to complete?
This depends on the size and complexity of the premises. Reports and certificates are typically issued within 24–48 hours of the inspection.
Can you work around our trading hours?
Yes, commercial work is scheduled to minimise disruption wherever possible, including out-of-hours appointments for premises that can't take downtime during trading hours.
Do you provide RAMS documentation for site access?
Yes, all commercial testing is carried out to a written Risk Assessment & Method Statement (RAMS) for full HSE compliance.
What happens if our Commercial EICR identifies issues?
We quote and complete the necessary remedial works promptly, then issue a satisfactory EICR certificate once the work is done.
Do you support landlords with multiple commercial properties?
Yes, we offer bulk compliance packages and coordinated inspection scheduling for portfolio landlords, estate agents and block managers.
How much does commercial electrical diagnostic testing cost?
Our electrical diagnostic service starts from £105, with commercial jobs typically taking longer than residential ones given system complexity.
Do you provide PAT testing for offices and commercial kitchens?
Yes, fast PAT testing with instant digital reports covering IT equipment, kitchen appliances and general office equipment.
Is emergency lighting a legal requirement for our building?
In most commercial buildings and HMOs, yes — see our Emergency Lighting Certificate service for testing and certification.
Do you install and service smoke and carbon monoxide alarms in commercial buildings?
Yes, installation, servicing, replacement and ongoing maintenance of smoke, heat and carbon monoxide alarms across commercial premises, communal areas and HMOs.
Do you fix circuits and fuse boards that keep tripping?
Yes, we diagnose the actual underlying cause rather than repeatedly resetting the protective device, which just leaves the fault unresolved.
What areas of London do you cover for commercial work?
Central, North, North West, West, South West, South, South East and East London — see the full area list above.
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