3-phase 22kW EV charger installation in Cardiff
22kW 3-phase EV charger installation in Cardiff for homes with 3-phase supply and small businesses. DNO liaison, fixed price.
Most people asking about ev chargers in Cardiff have already had one opinion and want a second that comes with readings. A 22kW 3-phase charger triples the speed of a standard 7kW unit — but only if your property has a 3-phase supply (most don't). Access is part of the job here. Cardiff properties vary from open loft space to boarded conversions, and that changes how long a visit takes. We would explain the same thing on site, just with the board open. Conditions locally play a part — exposure, damp and the way older Victorian and Edwardian terraces across Cathays and Roath were built all affect what we find. That is the honest version, rather than the version that sells more work. Here is how works at a Cardiff address, including the parts that decide the price.
- Common around CF10–CF24 — DNO G99 notification handled for you
- Around CF10–CF24: load balancing across all 3 phases
- Where fittings have been changed over the years, 22kW 3-phase chargers (Zappi, Hypervolt, Wallbox) is the usual culprit.
- A property with DNO G99 notification handled for you needs the circuit isolated before further testing.
- Load balancing across all 3 phases — the point at which a small job can turn into a larger one.
What's different about Cardiff
Common around CF10–CF24 — for Cardiff businesses on existing 3-phase supplies (workshops, small commercial units), 22kW is genuinely transformative for fleet vehicles.
Around CF10–CF24: many older Cardiff properties still run on rewireable BS 3036 fuse boxes that no longer meet 18th Edition requirements — relevant because 3-phase installs land heavier loads on the earthing arrangement and the CU often gets upgraded at the same time.
Cardiff calls of this kind frequently start with small-business and workplace installs.
Fixed price including all DNO paperwork, particularly where the installation has been extended piecemeal.
How we'd do it
- 1Supply checkWe confirm 3-phase is present (or quote for upgrade) and note the result against the circuit it belongs to.
- 2InstallAround CF10–CF24: single-day fit with full load balancing.
- 3CertifyWe single-day fit with full load balancing before deciding what, if anything, needs replacing.
- 4DNOWhere the property allows: G99 notification submitted on your behalf.
Common questions
Do I have 3-phase at home?
Most don't. Check the incoming meter or ask us to look on the survey.
What if I have had this looked at before?
Bring us the previous report if you have one. We test independently but it is useful to see what changed.
How far in advance should I book?
For non-urgent work, a week or so gives the most choice of slots across CF10–CF24.
Will you need to lift floors?
Only if the findings require it, and only with your agreement. We use existing access wherever it exists.
Do you cover Cardiff for ev chargers?
Put simply: yes — Cardiff and the surrounding CF10–CF24 postcodes are part of our regular working area, including Penarth and Caerphilly, and Cardiff Council notification is handled by us where the work requires it.
What happens if the fault does not show up on the day?
Intermittent faults get logged and monitored rather than declared fixed. We tell you plainly if it has not been reproduced.
Tell us the address, the property type and what prompted the enquiry. You will get a straight answer about whether this needs doing now. We cover Cardiff and the CF10–CF24 postcodes, including Caerphilly, for ev chargers. Bookings are made around access — tenants, trading hours or a school run all work. We cover Cardiff and the CF10–CF24 postcodes, including Pontypridd, for ev chargers.