Electrical solutions in London cover everything from safe wiring and fault finding to smart home automation, EV charger installation and efficient lighting design. Whether you are upgrading a period property, modernising a flat or fitting out a commercial space, the right plan improves safety, comfort and energy performance — while preparing the building for whatever you add next.
London property brings challenges you will not meet elsewhere: Victorian and Georgian housing stock with original fabric to protect, listed-building and conservation constraints, restricted access in mansion blocks, and supply capacity that was never designed for today's loads. This guide explains what modern electrical work involves, how the main compliance documents fit together, and how to plan an upgrade that will not need redoing in three years.
What are electrical solutions in London?
Electrical solutions are end-to-end services that assess, design, install and maintain the systems powering a property. In practice that includes consumer unit upgrades, partial and full rewiring, surge protection, Electrical Installation Condition Reports (EICR), LED and architectural lighting, structured data cabling, smart heating and lighting control, CCTV and alarms, and EV charge points.
All of it must align with BS 7671 (the IET Wiring Regulations) and the relevant Building Regulations, including Part P for domestic work. Compliance is not paperwork for its own sake: it is what makes an installation insurable, mortgageable and safe to hand over to a tenant or buyer. Concepto Solutions is NICEIC certified, which means our work is independently assessed against those standards and we can issue the certification that proves it.
The practical advantage of a single provider is coordination. When electrical work, smart home systems, structured cabling and security and CCTV are designed together, containment is shared, first fix happens once, and you avoid the classic problem of a beautifully finished room that has nowhere to put a network point.
The key benefits of modern electrical solutions
- Improved safety and compliance: reduce fire and shock risk, meet UK regulations, and stay ahead of EICR obligations for tenancies and commercial premises.
- Energy savings: LED upgrades, occupancy sensors and smart controls cut consumption without sacrificing light quality or comfort.
- Greater reliability: proactive maintenance and quality components mean fewer nuisance trips, outages and callouts.
- Future-ready infrastructure: capacity and containment for EV charging, solar and additional smart devices, added now rather than through costly rework later.
- Comfort and convenience: lighting scenes, zoned heating and single-app control that genuinely simplify daily routines.
- Property value: modern, documented, efficient electrics support rental and resale value and reduce tenant issues.
Understanding the EICR
An Electrical Installation Condition Report is a formal inspection of a property's fixed wiring. A qualified engineer tests circuits, checks earthing and bonding, examines the consumer unit, and looks for deterioration, overloading and non-compliant work. The result is a report classifying any issues found.
Those classification codes are what matter, and they are frequently misunderstood:
- C1 — danger present. Risk of injury is immediate. The engineer will make it safe before leaving.
- C2 — potentially dangerous. Not an immediate risk, but remedial work is required. C1 or C2 means the report is unsatisfactory.
- C3 — improvement recommended. Does not make the report unsatisfactory, but worth addressing.
- FI — further investigation required without delay.
Who needs one and when: private landlords in England must have a satisfactory EICR at least every five years and provide a copy to tenants. Owner-occupiers are advised to test roughly every ten years, and sooner for older installations or before buying. Commercial premises are typically inspected every five years, more often in demanding environments. If you are unsure when yours was last done, the consumer unit usually carries a dated label from the last inspection.
An EICR covers fixed wiring only. Plug-in equipment is assessed separately — see our guide to PAT testing in London for how the two work together.
Consumer unit upgrades
The consumer unit is the heart of the installation, and in a great many London properties it is the oldest part of it. Older boards with rewireable fuses or early MCB designs offer no earth-fault protection of the kind now expected, and cannot easily accommodate additional circuits.
A modern board brings several improvements. RCBOs combine overload and earth-fault protection on each individual circuit, so a fault in one place no longer takes out half the property — a meaningful difference when a freezer or home office is involved. Surge protection devices (SPDs) guard sensitive electronics against transients, which matters once a home contains control processors, network switches and AV equipment. Metal enclosures and arc-fault detection add further protection where required.
An upgrade is also the natural moment to add capacity. Adding spare ways, reviewing the incoming supply and improving earthing and bonding while the board is already being replaced is far less disruptive than returning to do it when an EV charger or garden supply is added later.
EV charger readiness
Demand for home charging continues to climb, and the most common obstacle is not the charger — it is the supply feeding it. Before installation, a competent contractor will assess main fuse rating and available capacity, earthing arrangement (TN-C-S supplies need specific protective measures for outdoor charging), cable route and containment, and whether load management is needed so the charger throttles when the property is drawing heavily elsewhere.
In flats and mansion blocks there is an additional layer: freeholder or managing-agent consent, parking allocation, and how metering will be handled. These take time to arrange, so start early.
Even if a vehicle is some way off, pre-wiring during other works is the single most cost-effective decision available. Running a suitably sized cable and containment while floors or walls are already open costs a fraction of retrofitting later.
Lighting design that actually works
Lighting is where good electrical work becomes visible. The difference between adequate and excellent is rarely the fittings — it is the design.
Work in layers: ambient light for general levels, task light where activity happens, and accent light for architecture and artwork. Pay attention to colour temperature — around 2700K for warm, relaxed living spaces, and 3500–4000K where focus matters, such as kitchens, studies and commercial areas. Specify a high colour rendering index (CRI 90+) anywhere finishes, artwork or food are on display; low-CRI sources make expensive materials look flat.
Get the dimming right, too. Driver and dimmer must be matched to avoid flicker and buzz, and consistency of dimming curve across a room is what separates a considered installation from a collection of fittings. Where lighting is integrated with smart home control, a handful of well-judged scenes will always beat dozens of individual switches.
For homeowners
Older London homes often conceal outdated wiring, too few circuits and inefficient fittings. A planned upgrade addresses overloaded sockets, flickering lights and poor heating control together rather than piecemeal. Selective rewiring, a consumer unit upgrade and whole-property surge protection give you a safe foundation; smart thermostats, zoned heating and dimmable scenes then deliver comfort and efficiency on top.
If Wi-Fi or media equipment struggles, the cause is usually infrastructure rather than hardware. Structured cabling to key locations stabilises streaming, home working and security cameras far more reliably than adding another mesh node.
For businesses and landlords
In shops, offices and HMOs, downtime and non-compliance are expensive. Routine EICR testing, emergency lighting checks and portable appliance testing reduce risk and keep you on the right side of your obligations. Occupancy sensing and daylight harvesting keep spaces well lit while trimming consumption, and clearly labelled, modular distribution makes future changes straightforward as teams grow.
Where practical, schedule intrusive work outside trading hours and coordinate building access in advance — particularly for plant rooms, risers and comms rooms.
Planning your upgrade: practical steps
- Start with an assessment. Document current problems and goals — lower running costs, better light quality, EV readiness. A clear brief keeps a project on schedule.
- Deal with safety first. Resolve known faults, damaged accessories and overloaded circuits before adding smart technology on top.
- Choose systems that interoperate. Favour platforms that work with others rather than locking you into one ecosystem.
- Plan capacity early. Review supply capacity and earthing before you need them, and pre-wire while walls are open.
- Build in resilience. Surge protection and circuit-level RCBOs, plus UPS for critical equipment such as servers, network cabinets and security systems.
- Insist on documentation. Labelled circuits, as-fitted drawings, test certificates and O&M manuals. This is what makes the next project straightforward.
- Schedule maintenance. Periodic checks and thermal imaging catch developing faults before they become failures.
Frequently asked questions
How often does a London property need an EICR?
Private rented homes in England require a satisfactory EICR at least every five years. Owner-occupied homes are generally advised to be tested every ten years, and sooner for older installations or before purchase. Commercial premises are typically inspected every five years, more frequently in demanding environments.
Does a full rewire always mean stripping the property back?
Not necessarily. Many London projects are better served by a partial rewire targeting the circuits that genuinely need replacing, combined with a consumer unit upgrade. A condition report establishes what is actually required rather than assuming the worst.
Can I install an EV charger in a flat or mansion block?
Often yes, but it depends on supply capacity, parking arrangements and consent from the freeholder or managing agent. Because approvals take time, begin the conversation well before you need the charger.
Do I need to rewire before installing a smart home system?
Not always, though the two are best planned together. Smart lighting and heating control place particular demands on wiring topology and network infrastructure, so establishing what exists before specifying a system avoids expensive compromises.
Will work in a listed or conservation-area property be different?
Yes. Cable routing, containment and accessory selection all need to respect the building fabric and any consent conditions, which requires early planning and close coordination with the wider project team.
Why choose Concepto Solutions
As a London-based electrical and smart home company, Concepto Solutions offers a single point of contact from initial survey and design through installation, certification and aftercare. Our NICEIC-certified team plans for compliance, aesthetics and performance together, so an upgrade looks right, works reliably and stands up to daily use.
- Tailored design: solutions sized and specified around your property's layout, load demands and how you actually use the space.
- Transparent delivery: clear proposals, realistic programmes and staged milestones that reduce surprises.
- Integrated expertise: lighting, heating, access control, AV and security designed as one system rather than five.
- Documentation you can rely on: test results, certificates and handover packs that simplify insurance and regulatory checks.
- Ongoing support: responsive fault resolution, warranty coordination and proactive maintenance.
You can see how this works in practice across our completed projects, or read more about the team.
Get started
Ready to plan electrical work that delivers safety, comfort and long-term value — whether that is smart automation, EV readiness or straightforward energy savings? Book a survey with our London team and we will assess the property, set out the options and recommend a plan that fits your priorities.