Commercial Electrical Contractors in London
Commercial electrical contracting across Greater London - installation and upgrades, EICR and fixed wire testing, emergency lighting and fire alarms, EV charging and electrical maintenance - run from our Aldgate office by a NICEIC-registered building services contractor in trade since 1973.
Rossair is a commercial electrical contractor covering all of Greater London from its Aldgate office. We install and upgrade power, distribution and lighting, carry out EICR testing, install and service emergency lighting and fire alarm systems, install EV chargers and run electrical maintenance contracts for offices, hotels, media and retail buildings and multi-site estates, with out-of-hours delivery as standard in occupied buildings.
- Aldgate
- London office, E1
- NICEIC
- Registered for installation and testing
- 24/7
- Reactive cover for contract clients
- 1973
- Electrical and mechanical contractor since
Electrical contractors that work around London buildings
London electrical work rarely happens on an empty floor. Occupied offices, hotels that never close, restricted loading and building managers who need the switch-off at 2am are normal, so out-of-hours testing and installation is a standard part of the service rather than a surcharge conversation. Current London clients include Crowne Plaza Albert Embankment and Bauer Media UK, and electrical sits alongside the HVAC and building services work we already run across the capital.
Commercial and industrial electrical services in London
Installation and upgrades
Power and distribution - mains, sub-mains, distribution boards and 3-phase supplies - plus lighting schemes, LED upgrades and controls for offices, classrooms, wards, warehouses and plant rooms across London. Designed, installed and certificated to BS 7671 by Rossair engineers. Electrical services.
EICR and fixed wire testing
Periodic inspection and testing of the fixed installation, every circuit tested and every observation coded C1 to C3, with the remedial work carried out by the same engineers. Phased around occupied buildings - evenings, weekends and term breaks. Commercial EICR.
Emergency lighting and fire alarms
Emergency lighting designed, installed and tested to BS 5266-1, fire alarm systems to BS 5839-1 - monthly and annual duration tests, periodic servicing and the cause-and-effect interfaces with the ventilation plant. Life safety systems.
Electrical maintenance contracts
Planned electrical PPM scheduled to SFG20 - distribution boards, emergency lighting, fire alarm servicing and the EICR cycle - usually on the same contract as the HVAC plant. Contract clients across Greater London have 24/7 reactive cover, 365 days a year, coordinated from the Aldgate office with a 24-hour job report after every visit. Maintenance contracts.
Commercial EV charging
Workplace, fleet and car-park charging - supply assessment, load management, DNO application and installation of 7 kW to 22 kW AC and DC rapid chargers, integrated with solar PV and battery storage where the site has it. EV charger installation.
Where we work in London
All of Greater London - the City, West End, Canary Wharf, the boroughs and out to the M25. The Aldgate office handles enquiries, helpdesk coordination and engineer dispatch, with engineers from the Hampshire HQ supporting larger installations, EV charging projects and multi-site contracts.
Related: electrical services hub, electrical maintenance contracts, commercial EICR and fixed wire testing, London building maintenance, commercial air conditioning London, building services in London.
Why estates stay with Rossair
We show up. We do it properly. We send the paperwork. A named account manager, the same engineers year after year, and a compliance pack - certificates, EICRs, emergency lighting and fire alarm logbooks - your auditor can actually use. Rossair has been looking after commercial building services since 1973, and the contracts that last longest are the ones where nobody has to chase us.
Commercial electrical contractors in London - the facts
Coverage, services, standards and registrations for commercial and industrial electrical work in London.
- Service
- Commercial electrical contracting - London
- London office
- Runway East, The Hickman Building, London E1 1EW (Aldgate)
- Coverage
- All of Greater London + M25
- Out-of-hours work
- Standard - testing and installation around occupied buildings
- Named London clients
- Crowne Plaza Albert Embankment, Bauer Media UK
- Services
- Installation, distribution, lighting, EICR and testing, emergency lighting, fire alarms, EV charging, maintenance
- Registration
- NICEIC - installation and inspection and testing
- Standards
- BS 7671, BS 5266-1, BS 5839-1, SFG20, Electricity at Work Regulations 1989
- Reactive cover
- 24/7, 365 days for contract clients; new enquiries called back within one working day
- In trade since
- 1973
- Telephone
- 01420 566822
Electrical contractors in London - common questions
What electrical work does Rossair do in London?
Does Rossair carry out electrical maintenance for London buildings?
Can fixed wire testing be done out of hours in London?
Which areas of London does Rossair cover?
How quickly can Rossair attend an electrical fault in London?
Is Rossair a NICEIC-registered electrical contractor?
If we’re not the right fit, we’ll tell you who is
Talk to our London electrical team
Tell us about the building - sites, what needs installing, testing or maintaining, and when. Your enquiry goes straight to the team. We call back within one working day.