Our story
An NICEIC electrical contractor and M&E partner since 2004
JKS London Ltd was set up in 2004 with a simple aim: to give organisations a contractor they can rely on to keep their buildings safe, compliant and working properly.
From our base at The Stables in Sidcup, Kent, we work with facilities managers, landlords, estates teams and operators across London and the South East. Our engineers carry out everything from periodic electrical inspection and testing to planned maintenance, installations, refurbishments and full facilities management.
Over more than two decades we have learned that clients rarely want “just” an electrician or “just” a maintenance contractor. They want a partner who understands their building, their obligations and their operation — and who takes ownership of the outcome. That is the kind of company we have set out to be.
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JKS London at a glance
Built on long-term relationships
Our mission
Helping you meet your health and safety obligations
Every organisation that occupies, owns or manages a building carries legal duties — to its staff, its customers, its residents and the public. Electrical installations must be maintained so they do not cause danger, life-safety systems must work when they are needed, and records must prove it.
Our mission is to make sure our clients can address the health and safety of their own clients and employees while providing the most up-to-date facilities. As we put it:
“Our business is to understand the regulations, procedures and legislative requirements that you need to address.”
That means we do the technical reading so you do not have to. We keep up with changes to BS 7671 (the IET Wiring Regulations), British Standards for emergency lighting and fire detection, and wider legislation such as the Building Safety Act 2022 — then translate them into clear, practical actions for your estate.
Who we work with
Trusted by operators, estates teams and developers
Our clients range from national hospitality brands and public-sector bodies to retirement-village operators and private developers.
Over the years we have delivered electrical testing, maintenance and installation work for organisations including The Restaurant Group, Public Health England, Bison Concrete, Furniture Hire UK, Inspired Villages Group, Southampton General Hospital, Beta Type Ltd and Vincent Estates Ltd, as well as projects at London train stations. We support commercial kitchens, restaurants and retail outlets at six major airports, from Southampton to East Midlands, London Heathrow, London Gatwick, Stansted and Luton.
What these clients have in common is that their buildings must stay open, safe and compliant while work goes on around them. Airport concessions trade from early morning to late at night; retirement villages are people’s homes; hospitals and public buildings cannot simply close for the day. We plan access, isolations and noisy work carefully, communicate clearly with on-site teams and leave areas clean and safe at the end of every shift.
London & the South East
Based in Sidcup, Kent, with engineers covering London, Kent and the wider South East, plus airport sites further afield. Areas we cover
Easy to reach
Call us on 020 8859 7512 or email [email protected] to talk to someone who understands your building.
Proven results
See examples of our work, from penthouse electrical installations to retirement-village repairs, in our case studies.
How we work
Our approach: compliance, clarity and continuity
Whether you need a single EICR or a fully managed maintenance programme across several sites, our approach stays the same.
Understand first
We start with a free, no-obligation site visit or initial discussion so we understand your building, your risks and the obligations that apply before we propose anything.
Compliance by design
Work is planned around the relevant standards and legislation, carried out by qualified people and documented properly, so you have evidence of compliance on file.
One accountable team
Our in-house electrical and mechanical engineers and qualified tradespeople mean fewer handovers, clearer responsibility and a consistent standard of work.
Minimal disruption
We are used to working in live environments — airport concessions, care settings, offices and retail — and plan work around your operation, not ours.
Plan ahead
Good testing and maintenance foresee problems before they become failures. We help you budget for remedial work and upgrades rather than reacting to breakdowns.
Clear reporting
Certificates, reports and recommendations are written so that non-specialists can understand what was found, why it matters and what to do next.
Our values
Investing in people who stay
We believe the quality of our work depends on the quality — and continuity — of our people. Clients benefit when the engineers who know their site keep coming back, year after year.
- An extensive apprentice programme. We train the next generation of electricians and maintenance engineers, combining college study with structured, supervised experience on real sites.
- 99% staff retention. In early 2020 our staff retention stood at 99% — a reflection of a team that is valued, trained and supported.
- Competence and safety first. Qualified, properly supervised engineers, safe systems of work and a culture where anyone can stop a job if it is not safe.
- Doing what we say. Straightforward communication, honest recommendations and no unnecessary work.
Accreditations
Approved, assessed and accountable
JKS London is an NICEIC approved contractor, which means our electrical work is regularly assessed against BS 7671 and the NICEIC scheme rules. We also hold health and safety accreditations recognised by facilities managers and procurement teams, including CHAS and SafeContractor, alongside other industry memberships.
For clients, these accreditations offer independent reassurance that our processes, competence and safety management have been checked by a third party — not just described in a tender response.
Accreditation

Giving back
Charities and causes we support
NSPCC
We are proud to support the NSPCC, the UK children’s charity working to prevent abuse and protect children and young people. Supporting causes in our community matters to the whole team.
The Skills Pledge
Our support for The Skills Pledge reflects our commitment to helping employees develop their skills and gain recognised qualifications — a principle at the heart of our apprentice programme.
Sectors
Specialist experience across four sectors
Different buildings carry different risks. We have built specialist experience in four sectors where compliance, uptime and safety are critical.
Airport compliance
Electrical compliance and maintenance for commercial kitchens, restaurants and retail outlets at six major airports, from Southampton to East Midlands, Heathrow, Gatwick, Stansted and Luton.
Learn moreRetirement living
Planned and reactive maintenance, life-safety systems and refurbishments for retirement villages, delivered with care for residents’ comfort and dignity.
Learn moreCommercial
Testing, maintenance and installations for offices, restaurants, retail and industrial premises that cannot afford downtime.
Learn morePublic sector
Compliance testing, asset stewardship and installation work for healthcare, transport and public-sector estates.
Learn moreWhat we do
Electrical, maintenance and facilities services under one roof
Electrical compliance
EICRs to BS 7671, emergency lighting testing to BS 5266, witness testing, PAT and asset stewardship. Electrical compliance services
Planned & reactive maintenance
Electrical and mechanical maintenance, life-safety systems, CCTV, door entry and security. Maintenance services
Installations & refurbishment
Building and fabric, M&E and electrical installation, from minor works to turnkey projects. Installations and refurbishment
Facilities management
Compliance, certification, future planning and reporting for your whole physical infrastructure. Facilities management
Not sure where to start? Our case studies show the kind of work we deliver, or browse our fixed-price service packages for common compliance tasks.
Client feedback
What our clients say
Arrange a free, no-obligation site visit
Tell us about your building and compliance needs — our team will get back to you within one working day.

