Commercial & industrial · Kent and Medway
Electrical work for businesses
Commercial and industrial electrical contractors covering Kent, Medway and South East London. Fit-outs, three-phase, fixed wire testing, emergency lighting and planned maintenance.
In short
Who does commercial and industrial electrical work in Kent?
William's Electrical is a NAPIT registered electrical contractor based in Sittingbourne, working across Kent, Medway and South East London. We cover shop, office and unit fit-outs, three-phase supplies and distribution boards, motor and starter work on production plant, fixed wire testing, emergency lighting to BS 5266-1:2025, and planned maintenance across property portfolios. We are a small team, which means the person who quotes the job is the person who turns up to do it. Work is phased so premises keep trading, evening and weekend windows are priced up front, and certification is issued in time for hand-over. Call 07825 333341 or email info@williamselectricalkent.co.uk.
What we do, and what we don’t
Commercial electrical work gets judged on two things: whether it is right, and whether it got in the way of the business. We cover shops, offices, lettings, warehousing and light industrial units across Kent and Medway — from a single distribution board change to fixed wire testing across a portfolio, and the full electrical package on a unit fit-out.
We are a three-person business: Gary Williams and Mark Linsdell on the tools, Hayley on the admin. That is worth being plain about, because it decides what we are good for. Single-unit fit-outs, board changes, testing and remedials across a group of properties, planned maintenance, and industrial work on plant and machinery are all well within us. A job needing five electricians on site at once for two months is not, and we would rather say that at the first phone call than halfway through.
Sectors we work in
Retail & shop fit-outs
Unit fit-outs and refits, shopfront and signage supplies, display lighting, and out-of-hours working in trading centres.
Industrial & manufacturing
Three-phase supplies and sub-mains, distribution boards, motor, starter and isolator work on production plant, and machine wiring.
Offices & workspace
Small power and data containment, lighting and emergency lighting, board changes and fit-out packages in occupied buildings.
Landlords & managing agents
Fixed wire testing and emergency lighting across a portfolio on one rolling schedule, with the certification kept together.
Main contractors & shopfitters
Electrical packages priced from drawings and worked to your programme, as a subcontractor on your site rules.
Licensed & hospitality
Pubs, cafés and restaurants — emergency lighting, kitchen and equipment supplies, and testing scheduled around service.
Credentials
The things a procurement or facilities team usually asks for. Anything you need in writing, ask and we’ll send it.
NAPIT registered competent persons
Every installation certified to BS 7671 (18th Edition).
10-year workmanship warranty
NAPIT-backed, on every job we carry out.
City & Guilds 2391-52 inspection & testing
Held by Gary Williams, who carries out the testing.
Gate Safe Aware installer, reg. 2476
Powered gates, barriers and force testing on commercial sites.
Out-of-hours and weekend working
Priced up front where a daytime isolation isn't practical.
Phased testing
Board by board, so premises keep trading through it.
Trading as Gary Williams t/a William's Electrical, Dyngley Close, Sittingbourne, Kent ME10 2BH. Direct line 07825 333341.
Questions we get from businesses
Will you work as a subcontractor to a main contractor or shopfitter?
Yes. We price the electrical package from your drawings and programme, work to your site rules, and attend progress meetings where they're called. Tell us at tender stage if the job needs night or weekend working to hold a date and it gets priced in rather than argued about later.
Can you work on premises that have to stay open?
Yes, and most of our commercial work is exactly that. Testing is phased board by board so only part of the building is isolated at a time, and where a daytime isolation isn't practical at all we work evenings or weekends. We agree what's off and when before we start, in writing.
How big a job will you take on?
We're a small team — Gary and Mark on the tools — so we're well suited to single-unit fit-outs, board changes, testing across a portfolio, and planned maintenance. Work that needs several electricians on site at once for weeks isn't our shape and we'll say so rather than take it on and struggle. If you want to know whether a particular job fits, ring and describe it.
Do you take on planned maintenance across several properties?
Yes. For landlords, managing agents and businesses with more than one property we put every due date on one rolling schedule, come to you before things lapse, and keep the certification together so it can be produced for an insurer or licensing officer without a search. See planned maintenance for how it works.
How quickly is certification issued?
Usually within a couple of working days of the final test, and faster where a hand-over or opening date depends on it. Tell us the date you need certificates by and we work the testing back from it.
Are you NICEIC registered?
We're NAPIT registered, which is the other UKAS-accredited competent person scheme and is assessed against the same national standard — the Electrotechnical Assessment Specification. Public bodies and main contractors that specify a scheme almost always write “NICEIC or NAPIT”, and the Common Assessment Standard used behind Constructionline and CHAS doesn't name either. If a specification you're working to insists on NICEIC specifically, tell us and we'll be straight with you about it.
Looking for work on your own home instead? See our domestic services.
Tell us about the premises.
Or call anytime
07825 333341 WhatsApp usinfo@williamselectricalkent.co.uk
Dyngley Close, Sittingbourne
Kent ME10 2BH
NAPIT registered · BS 7671 compliant · every job backed by a 10-year workmanship warranty.