Lighting and emergency lighting
LED replacement schemes, lighting design for offices and retail spaces, presence detection and daylight dimming, plus emergency lighting installation and duration testing.
Commercial Electrical
Commercial Electricians for Business Premises Across the UK
Commercial electrical work covers the installations that keep an occupied building running: lighting, small power, distribution, emergency systems and the alterations that follow every change of layout or tenant. It is usually carried out around people, trading hours and other trades, which is what separates it from domestic work.
GridGuys is a lead-generation and contractor-matching service. We do not carry out electrical work ourselves — we take the details of your project and pass the enquiry to an electrical contractor set up for commercial premises, who then quotes and deals with you directly.
Scope
What commercial electrical work covers
Commercial electrical projects commonly fall into one or more of the following categories. You do not need to know the technical answer — a description of the problem or the outcome you want is enough to start.
Small power and containment
Socket circuits, floor boxes, desk power and data poles, dado and perimeter trunking, and reconfiguration when desks or departments move.
Distribution boards and sub-mains
New or replacement distribution boards, additional sub-mains to serve extensions and mezzanines, circuit labelling and updated schedules.
Fit-out and refurbishment works
First and second fix for tenant fit-outs, shopfits, refurbished floors and change-of-use projects, coordinated with the main contractor's programme.
Life safety and building systems
Fire alarm alterations, door access and intruder alarm supplies, air conditioning and mechanical plant connections, and BMS-related power.
Fault finding and remedial works
Tracing nuisance tripping, intermittent faults and overloaded circuits, and completing remedial actions raised by an inspection report.
Practicalities
Common commercial project requirements
These are the points that most often shape the programme, the method and the price on this type of project.
- 01
Working around occupation
Offices, shops and public buildings rarely close. Many projects need evening, weekend or phased working, with each area handed back usable at the end of a shift.
- 02
Landlord and tenant boundaries
Leases often set out who is responsible for the landlord's supply and who is responsible for the demise. Knowing which side your work falls on affects both scope and permissions.
- 03
Isolation and shutdown windows
Any work on the incoming supply or main distribution needs an agreed shutdown, often outside trading hours and coordinated with IT and building management.
- 04
Certification and handover
Commercial work is normally expected to come back with certification, updated schedules and, where relevant, as-fitted drawings and O&M information.
Where it applies
Commercial environments this applies to
Commercial electrical work spans very different buildings. The environment changes the access, the standards involved and the way the works are staged.
- Offices and serviced workspace
- Retail units, showrooms and shopping centres
- Restaurants, pubs, hotels and leisure venues
- Schools, colleges and universities
- GP surgeries, clinics and care settings
- Local authority and public sector buildings
- Gyms, salons and studios
- Mixed-use and multi-tenant property
Related work
Related electrical requirements
Commercial electrical projects often overlap with other electrical requirements. These requirements often arise alongside them.
Commercial EICR and fixed wire testing
Landlords, insurers and duty holders often ask for an up-to-date condition report before or after works.
Electrical maintenance
Once an installation is upgraded, planned maintenance and reactive cover keep it working and documented.
Three-phase electrical installation
Catering equipment, air conditioning and EV charging can push a building beyond its existing single-phase capacity.
Useful information when requesting a commercial quote
You do not need all of this to submit an enquiry, but the more you can include, the more accurately a contractor can respond.
- The building type and what it is used for
- Site postcode and the floors or areas involved
- What you want the finished result to be, in plain terms
- Whether the building stays occupied during the works
- Any restrictions on working hours or access
- Whether a shutdown can be arranged, and when
- Existing drawings, layouts, specifications or photos
- Your target start date and any fixed deadline
How GridGuys works
A lead-generation and contractor-matching service
GridGuys does not carry out electrical work. We take your enquiry, review what is needed and introduce you to an electrical contractor working in that category. From the introduction onwards, the contractor deals with you directly.
- 01
Describe the project
Give the site details, the works required and anything you already have such as drawings or photos.
- 02
We review the enquiry
We look at the scope, location and timeframe so the enquiry goes to a contractor set up for that work.
- 03
You are introduced
We connect you with an electrical contractor whose capabilities match what you have described.
- 04
You receive a quotation
The contractor prices the works and deals with you directly from that point onwards.
FAQs
Commercial electrical questions
Request a commercial electrical quote
Describe the building, the work and your timescales. Upload drawings or photos if you have them, and your enquiry goes to a contractor working on commercial premises.