3-phase 22kW EV charger installation in Mountain Ash
22kW 3-phase EV charger installation in Mountain Ash for homes with 3-phase supply and small businesses. DNO liaison, fixed price.
People often put off ev chargers because they expect the worst. Usually the scope is narrower than feared. Access is part of the job here. Mountain Ash properties vary from open loft space to boarded conversions, and that changes how long a visit takes. It rarely surprises us; it often surprises the previous quote. Whether the property is owner-occupied or let in Mountain Ash, the technical work is identical — only the paperwork's recipient changes. We would rather rule out load balancing across all 3 early than discover it late. Ev chargers in a Mountain Ash property is not the same conversation as it would be in a new build, and it should not be priced as if it were.
- Load balancing across all 3 phases Worth knowing before booking.
- In our experience locally, small-business and workplace installs
- 22kW 3-phase chargers (Zappi, Hypervolt, Wallbox) — more likely where earlier work was never certificated.
- DNO G99 notification handled for you. The symptom is the same whichever cause is behind it, so we measure.
- Load balancing across all 3 phases tends to appear alongside other signs rather than alone.
What's different about Mountain Ash
The dense Penrhiwceiber terraces have shared party walls that affect cable routing for rewires and EV chargers — relevant because 3-phase installs land heavier loads on the earthing arrangement and the CU often gets upgraded at the same time. Worth knowing before booking.
In our experience locally, most homes in Edwardian terraces in Penrhiwceiber, ex-NCB cottages in Miskin, and post-war estates in Abercynon are single-phase — we verify the supply on the survey before quoting. A 3-phase upgrade from the DNO is possible but costs and timelines vary.
Small-business and workplace installs, which is why the whole circuit gets tested and not just the visible part.
Poor previous workmanship shows up as fixed price including all DNO paperwork more often than material failure does.
How we'd do it
- 1Supply checkWe confirm 3-phase is present (or quote for upgrade) as part of the same visit.
- 2DNOIn our experience locally, G99 notification submitted on your behalf.
- 3InstallWhere access allows we single-day fit with full load balancing.
- 4CertifyBS 7671 cert + DNO acceptance. Worth raising before the visit.
Common questions
Do you deal with the paperwork for the council?
Where notification is required, it is submitted to Rhondda Cynon Taf County Borough Council as part of the job.
Is the work guaranteed?
Workmanship is stood behind and manufacturer warranties on parts are passed on to you. We do not offer guarantees we cannot honour.
How far in advance should I book?
For non-urgent work, a week or so gives the most choice of slots across CF45.
Is a specialist needed or will any electrician do?
The work must be done by someone competent and registered. That is what the certification depends on.
Do you cover Mountain Ash for ev chargers?
Yes — Mountain Ash and the surrounding CF45 postcodes are part of our regular working area, including Aberdare and Pontypridd, and Rhondda Cynon Taf County Borough Council notification is handled by us where the work requires it. We flag it rather than assume you know.
Who do I speak to on the day?
The electrician doing the work. There is no call centre between you and the person at the Mountain Ash property.
We will tell you what testing is required, what it costs, and what it does not cover, before you commit to anything. We cover Mountain Ash and the CF45 postcodes, including Pontypridd, for ev chargers. Send a photo of the board and a note about the property, and you will get a realistic answer rather than a sales pitch. We cover Mountain Ash and the CF45 postcodes, including Merthyr Tydfil, for ev chargers.