London & South-East England
EV Charger Installation
A 7 kW smart charger on the wall, fitted by a registered electrician, with the paperwork done.
Is EV charger right for your home?
- Homes with a driveway, garage or other off-street parking
- Drivers on, or moving to, a cheap overnight EV tariff
- Homes with solar panels that want to charge the car on surplus generation
- Households adding a second electric car or a plug-in hybrid
- Owners already booking solar, a battery or a heat pump with us
EV Charger Installation: key facts
- A 7 kW home charger adds around 25 to 30 miles of range per hour and fully charges most cars overnight.
- Indicative cost: £800 to £1,500 installed for a 7 kW charger; long cable runs or a consumer unit upgrade add £200 to £600.
- Every home charger sold in the UK must be a smart charger, so it can charge on a cheap overnight tariff.
- Modern chargers have built-in PEN fault protection, so most installations no longer need an earth rod.
- Charged at the standard 20% VAT rate; it is not an energy-saving material.
- Fitted by accredited NICEIC or NAPIT registered accredited electricians, arranged and project-managed by Stay Warm.
What is EV charger?
A home EV charger is a wall-mounted unit on its own dedicated circuit from the consumer unit, usually rated at 7 kW on a single-phase supply. That is three times faster than a three-pin plug and enough to take almost any electric car from low to full overnight. The charger is either tethered, with its own fixed cable, or untethered, with a socket you plug your own cable into. All new home chargers are smart, so they can be scheduled to draw power in the cheap overnight window of a time of use tariff.
Most London and South-East homes were wired long before anyone thought of adding a 32 amp circuit to the driveway. The survey checks the consumer unit, the main fuse, the earthing arrangement and the route the cable will take to the parking space. Off-street parking is needed, because a cable cannot lawfully be run across a public pavement. Where a fuse board is old or full, a small consumer unit upgrade is often part of the job, and the installer notifies the electricity network operator (DNO) of the new load.
Stay Warm arranges the survey, the quote and the installation date, and an accredited electrician who is NICEIC or NAPIT registered and Part P qualified fits and certifies the charger. Where we are already fitting solar panels or a battery, a solar-aware charger that tops the car up on surplus generation makes the most of both, and doing them in one project saves a visit.
Who does the work
EV chargers are arranged and project-managed by Stay Warm and installed by accredited electricians who are NICEIC or NAPIT registered and Part P qualified, so the work is certified under the Building Regulations.
EV Charger Installation cost guide
Indicative 2026 market ranges for London and the South-East. Your fixed quote follows a free survey and depends on the charger chosen, the cable route and the state of the consumer unit.
| Job type | Indicative cost |
|---|---|
| 7 kW untethered charger, standard install | £800 – £1,200 |
| 7 kW tethered charger, standard install | £900 – £1,500 |
| Long cable run, trenching or a consumer unit upgrade | £200 – £600 extra |
| Solar-aware charger | Itemised |
| 22 kW three-phase charger | Quoted on survey |
VAT: 20%. An EV charger is not an energy-saving material under HMRC VAT Notice 708/6, so the installation is charged at the standard 20% rate; solar panels or a battery fitted at the same time are 0% and the quote shows the split.
What an EV charger installation includes
How EV charger installation works
Free survey
We check the consumer unit, main fuse and earthing, agree where the charger goes and measure the cable route to the parking space.
Fixed quote
A written quote for the charger, the circuit and any consumer unit or cable work, usually within a few days.
Installation
An accredited, NICEIC or NAPIT registered accredited electrician fits the charger and circuit, normally in half a day to a day.
Testing and paperwork
The circuit is tested and certified, the app is set up with your tariff, and the DNO and Part P notifications are sent.
Free survey & fixed quote
Book a free, no-obligation survey and we will send a clear, fixed written quote. One point of contact from survey to sign-off, and a written guarantee on the work.
Get a free quoteEV Charger Installation FAQs
How much does an EV charger cost to install?
Tethered or untethered: which should I choose?
Can I charge on a cheap overnight tariff?
Do I need an earth rod or a new fuse board?
Does the electricity network need to be told?
Who installs the charger?
Areas we cover
We arrange EV charger across Greater London, Surrey, Kent and Hertfordshire. See all areas we cover →
Related guides
In-depth, independent guidance to help you decide.
Last reviewed September 2026 by Stay Warm Insulation.
Get a free quote
Leave your details and we will call you back within one working day to arrange a free survey.