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Commercial Electrical Contractors in South Wales

Complete commercial electrical scope for offices, retail units and commercial premises. Reference project: Cardiff Crown Courts refurbishment.

Commercial electrical scope

  • Office fit-out and refurbishment
  • Retail unit installations and shopfitting
  • EICR periodic inspection and reporting
  • Emergency lighting design, install and testing to BS 5266
  • Fire alarm design, install and interfacing to BS 5839
  • Landlord-obligation inspections for the Welsh Housing Quality Standard 2023
  • Structured data cabling and small-power works
  • EV charger installation for company fleets

Reference project: Cardiff Crown Courts

FLD delivered the electrical package for the Cardiff Crown Courts entrance and foyer refurbishment, approximately £50,000 in value. Scope covered LV distribution, lighting, fire alarm interfacing, access control, structured cabling to Cat6a, and emergency lighting to BS 5266. The works were staged around court sittings with a single NICEIC Approved Contractor sign-off.

Regulatory context

  • BS 7671 18th Edition Amendment 2
  • Electrical Safety Standards in the Private Rented Sector (Wales) Regulations
  • Welsh Housing Quality Standard 2023 for social landlords
  • Workplace (Health, Safety and Welfare) Regulations 1992

Emergency call-out

We run a responsive emergency call-out service for commercial clients across SA, CF, NP and LD postcodes, with standard attendance within four working hours.

Our process

  1. 1
    Site survey

    A named FLD engineer visits your site, measures the roof or installation zone, inspects the incoming supply and verifies load, structural integrity and orientation. For commercial sites we run a full discovery including half-hourly consumption data where available.

  2. 2
    Design and proposal

    We produce a scaled layout, generation model using PVGIS data, financial model with simple and post-tax payback, DNO G99 or G98 notification pack where relevant, and a fixed-price quotation. Every proposal names the exact panels, inverters and mounting system.

  3. 3
    DNO and planning

    We handle NGED G99 Type A applications for commercial systems, G98 notifications for domestic, and any permitted development confirmation or full planning submissions required for listed buildings or conservation areas.

  4. 4
    Install and commission

    FLD directly-employed engineers install under a single NICEIC Approved Contractor sign-off. Commissioning includes BS 7671 testing, SolarEdge monitoring portal setup, MCS certification where applicable, and handover of all documentation.

  5. 5
    Aftercare

    Insurance-backed NICEIC warranty, 25-to-30-year panel performance warranty from the tier-1 manufacturer, 12-year SolarEdge inverter warranty, and ongoing O and M support including remote performance monitoring.

Commercial solar inverters with cable management in dedicated plant room

Plant room commissioning

415V HV distribution board with inverter circuit breakers, commercial installation

415V distribution board

Recent FLD installation — view all project photos

Standards we work to

  • BS 7671
  • BS 5266
  • BS 5839
  • BS EN 50173
Coverage

Commercial Electrical Contractors available in

Cardiff Swansea Newport Bridgend Carmarthen Monmouth Usk Cwmbran Barry All 30 locations
From the blog

Further reading

Commercial EV charging Swansea: workplace charger installation across SA postcodes

Commercial EV charger installation for Swansea businesses -- workplace charging for SA1 to SA7 employers, OZEV grant eligibility, load management and pairing with rooftop solar.

5 min
Read

Commercial EV charger installation in South Wales: G100, OZEV grants and solar integration

A complete guide to commercial EV charger installation in South Wales -- G100 DNO notification, OZEV Workplace Charging Scheme grants, 7kW versus 22kW versus rapid charger selection, and pairing EV charging with rooftop solar.

5 min
Read
FAQ

Frequently asked questions

BS 7671 recommends a maximum of five years for most commercial premises. Industrial sites are typically every three years. Some high-risk environments such as petrol stations and healthcare settings are annual. Welsh landlords have additional obligations under the Electrical Safety Standards in the Private Rented Sector (Wales) Regulations and under the Welsh Housing Quality Standard 2023.
Yes. Typical FLD scope covers LV distribution, SCADA and BMS containment, lighting, fire alarm, CCTV, access control, intercom and data, all under a single NICEIC Approved Contractor sign-off. Reference project: Cardiff Crown Courts refurbishment, approximately £50,000.
NICEIC is the UK's most recognised certification body for electrical installers. An NICEIC Approved Contractor has been audited on competence, quality management and BS 7671 compliance. It gives you an insurance-backed warranty on the installation work we sign off, and meets the Competent Person scheme requirements for Building Regulations Part P.
Yes. We install 7 kW AC wall units, 22 kW three-phase AC posts and DC rapid chargers from 50 kW upwards. Every commercial EV install includes a DNO notification under G100 (for chargers above 16 A), load management integration with any on-site solar, and OCPP back-office connectivity for chargepoint-as-a-service business models.
Structured cabling is the standardised low-voltage data, telecoms and power infrastructure of a building, specified to TIA-568 and BS EN 50173. We design, install and certify Cat6, Cat6a and Cat7 copper networks and OM3, OM4 or OS2 singlemode fibre backbones for offices, factories and data rooms.

Ready for a fixed-price quotation?

Speak to Paul directly. Most quotes turn around within five working days of a site survey.

Trusted by NHS care providers, HMCTS and private developers across South Wales.

Call 01792 680611 Request a quote