Zappi v2.1 installation in Ystrad Mynach
Myenergi Zappi installation in Ystrad Mynach. Solar PV diversion, eco modes, and CT clamp setup. Fixed price, fully certified.
For 1970s estates around Hengoed in particular, brand-specific throws up a fairly predictable set of findings. Questions asked during the visit get answered during the visit; there is no benefit to either of us in keeping it mysterious. Anyone testing properly will reach the same conclusion. Where previous work has no certification behind it, we test it rather than take it on trust. It rarely changes the price, but it does change the plan. You can spend a lot on brand-specific or very little. Which one is right depends on measurements, not on the quote.
- Commonly, myenergi Hub & app pairing on the day
- Fixed price including all clamps and cabling Ask if you want it explained on site.
- Eco, Eco+ and Fast modes configured — the point at which a small job can turn into a larger one.
- Myenergi Hub & app pairing on the day — common enough locally that we carry the parts for it.
- Properties handled by Caerphilly County Borough Council building control show the same pattern: fixed price including all clamps and cabling.
What's different about Ystrad Mynach
Commonly, CT clamp position matters: it goes on the incoming meter tails before the consumer unit. On older Ystrad Mynach boards this sometimes needs a sub-board or extension box.
Ystrad Mynach's mix of valley terraces and newer Hengoed estates means CU upgrades often need both SPD and AFDD to suit older and newer circuits side by side — relevant because Zappi's solar diversion relies on a stable earth and accurate CT readings. Ask if you want it explained on site.
CT clamp position matters, especially on circuits that were extended rather than replaced.
Where ystrad Mynach's mix of valley terraces and newer Hengoed shows up, we test the neighbouring circuits too.
How we'd do it
- 1SpecAround CF82 we schedule single-day install, eco modes configured to avoid a second journey.
- 2CertifyBS 7671 cert + DNO notification. Ask if you want it explained on site.
- 3SurveyTethered/untethered, with or without Hub — done in front of you if you want to watch.
- 4FitWhere the survey supports it: single-day install, eco modes configured.
Common questions
What happens to old parts?
They are removed and disposed of correctly, and shown to you first if you want to see what failed.
What if I disagree with a finding?
You are welcome to get a second opinion. The readings are on the certificate so anyone can repeat them.
What paperwork do I get?
The certification appropriate to the work, listing the circuits tested and the readings recorded, not a receipt with a tick on it.
Can the work be staged?
Often, yes. Where the findings allow it we prioritise what affects safety and leave the rest to be planned.
Do you cover Ystrad Mynach for brand-specific?
For 1970s estates around Hengoed especially — yes — Ystrad Mynach and the surrounding CF82 postcodes are part of our regular working area, including Caerphilly and Bargoed, and Caerphilly County Borough Council notification is handled by us where the work requires it.
What if I disagree with a finding?
You are welcome to get a second opinion. The readings are on the certificate so anyone can repeat them.
Let us know your preferred access times — tenanted property in Ystrad Mynach is arranged around the tenant, not around us. We cover Ystrad Mynach and the CF82 postcodes, including Bargoed, for brand-specific. If you have quotes already, send them. We will explain what the differences between them actually mean.