Electrical Work Planned Around Your Business
Commercial electrical work needs to be planned around opening hours, staff, customers, equipment and other trades. ZJ Electrical Services works with business owners, landlords, managing agents and contractors across Leyton, Waltham Forest and East London. Recent work includes this lighting upgrade for an optician’s premises, designed to improve illumination throughout the retail space while complementing the interior design and minimising disruption to the business. Our wider commercial work includes new circuits, three-phase distribution, containment, equipment power supplies, emergency lighting, EICRs, data cabling and workplace EV charging. As a NICEIC Approved Contractor, we test, certify and document completed work appropriately.
NICEIC Approved Contractor · 14+ years’ industry experience
Commercial installations, testing & upgrades
Electrical work for offices, retail, hospitality and commercial premises across Leyton, Waltham Forest and East London. From fit-outs and alterations to three-phase distribution, lighting and data cabling, ZJ Electrical Services plans the installation around your premises and project.
Opening hours, staff, customers, equipment and other trades all matter. Discuss the scope and access requirements with us so the electrical work can be coordinated from the outset.

Who we work with
We work with business owners, landlords, managing agents and building contractors on electrical installations, improvements and testing in occupied premises and refurbishment projects.
- Offices
- Shops & retail
- Opticians
- Restaurants & hospitality
- Commercial kitchens
- Landlords & managing agents
- Builders & contractors
Commercial electrical services
Fit-outs & alterations
Lighting, socket circuits and dedicated equipment supplies for offices, shops, restaurants and commercial kitchens, coordinated with the wider project programme.
Commercial electrical fit-outs & refurbishmentsThree-phase distribution
Installation and upgrades of distribution boards, sub-mains and equipment supplies. We assess the existing supply, earthing arrangement and electrical demand before work begins.
Commercial lighting
LED lighting installations and upgrades, dimming and lighting controls. We match fittings, drivers and controls and resolve compatibility issues for reliable operation.
EICRs & inspection and testing
Fixed-wire inspection and testing for business premises, with clear reports identifying defects and required remedial work. Agree access and any planned interruptions before testing.
Data & Cat6 cabling
Cat6 cabling, data points, patch panels and cabinets. Neatly routed, terminated and labelled cabling, with associated electrical supplies where required.
Cable containment
PVC and galvanised steel conduit, trunking, tray and basket for power, lighting and data. Routes are coordinated with the building layout and other trades.
Dedicated equipment supplies
Circuit protection, local isolation and power connections for commercial equipment, including air conditioning and kitchen appliances, coordinated with the equipment contractor.
Workplace EV charging
Charging for workplaces and commercial premises, starting with supply capacity, earthing, maximum demand, cable routes and charging requirements.
EV charger installation informationWe also carry out emergency lighting installation and testing, PAT testing, commercial fault finding and repairs. If an existing installation needs attention, we explain the findings and the proposed remedial work clearly.
Commercial work in practice
Examples from ZJ Electrical Services projects, showing the installation detail behind the finished premises.

Schneider distribution-board installation
Commercial distribution equipment and organised circuit wiring. This installation illustrates ZJ’s work with distribution boards, protective devices and the practical routing of electrical circuits.

Commercial containment & cabling
Cable tray and supported cable routes for power and control wiring. The work shown demonstrates the containment and cable-management side of commercial electrical installations.

Optician’s lighting upgrade
A lighting upgrade to improve illumination throughout an optician’s retail space while complementing the interior. Work was planned to minimise disruption to the business.

Cat6 patch-panel installation
Data cables terminated and labelled at a commercial patch panel. Clearly identified connections help keep the installation organised for handover and future maintenance.

Workplace EV charging
Multiple EV charge points installed for workplace use, with the electrical supply, circuit protection and cable routes planned around the site requirements.

Three-phase equipment supply
A dedicated three-phase supply and local industrial connection for commercial equipment, installed with suitable circuit protection and isolation for the application.
Completed electrical work is tested, certified and documented as appropriate to its scope. For an existing installation, see our commercial inspection and testing services.
Clear planning, careful installation, proper handover
Experienced electrical contractor
NICEIC Approved Contractor, led by Zilvinas Jasiulis with more than 14 years of electrical experience across domestic, commercial and larger installations.
A clear scope of work
We discuss requirements, access, equipment and coordination with other trades before quoting. Share any drawings, specifications or photos so they can be considered when reviewing the project.
Testing & documentation
Appropriate testing, certification and clear handover information form part of completed electrical work. Inspection findings and any required remedial work are explained clearly.
Tell us about your commercial project
Planning electrical work for a shop, office, restaurant or commercial property? Tell us about the premises, the work required and your proposed timescale. Send drawings or photos by email so we can review the requirements.