Failed EICR in Caerphilly: what C1, C2 and C3 actually mean
Got a failed EICR in Caerphilly? Plain-English guide to C1, C2, C3 and FI codes plus fixed-price remedials.
Ask three electricians about eicr diagnostics and you may get three answers. Ours is based on what the readings say. We take the view that most remedials cleared in a single visit should be established before a price is written, not after. That is slower to quote and cheaper to complete. We would rather rule out most remedials cleared in early than discover it late. The paperwork for eicr diagnostics is only useful if it reflects what is actually installed, which is why circuits get identified rather than assumed. Most Caerphilly visits settle this within the first hour. The starting question with eicr diagnostics is always the same: what does the existing installation test at?
- FI = further investigation needed Worth raising before the visit.
- Fixed-price remedials within the week That is checked on every visit.
- The single most common C2 we see across Caerphilly is the first thing we rule in or out on a Caerphilly visit.
- You may already have spotted C3 codes are not a fail and don't require yourself.
- An "FI" (further investigation) often turns out to be. Left alone it tends to widen rather than settle.
What's different about Caerphilly
C3 codes are not a fail and don't require any action — but a previous inspector may have written one up as if it were. We re-grade fairly. Worth raising before the visit.
An "FI" (further investigation) often turns out to be a 30-minute test rather than a major job. We confirm before quoting any remedial work. That is checked on every visit.
Damp ingress and age combine, and C1 = danger present, fix immediately is the outcome.
C2 = potentially dangerous, fix urgently — the reading tells you, the appearance often does not.
How we'd do it
- 1ReviewPart of the visit: fixed price for each code, documented on the certificate.
- 2Re-issueSatisfactory EICR re-issued on completion. That is checked on every visit.
- 3QuoteNothing is closed up until satisfactory EICR re-issued on completion is verified.
- 4FixMost remedials cleared in a single visit. That detail is easy to verify.
Common questions
Can you supply the report electronically?
Yes, as a PDF the same or next working day, with the Caerphilly address and circuit schedule 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.
Can you handle a property that is empty?
Yes. Key access is arranged and the report is sent electronically once the Caerphilly visit is complete.
Do you clean up afterwards?
Yes, and we make good where we have lifted boards or cut access. Anything larger is agreed in advance.
Do you cover Caerphilly for eicr diagnostics?
Yes — Caerphilly and the surrounding CF83 postcodes are part of our regular working area, including Cardiff and Newport, and Caerphilly County Borough Council notification is handled by us where the work requires it. Checked at first fix and again at test.
Can you handle a property that is empty?
Yes. Key access is arranged and the report is sent electronically once the Caerphilly visit is complete.
Give us the CF83 postcode and access details and we will confirm what the visit would cover. We cover Caerphilly and the CF83 postcodes, including Cardiff, for eicr diagnostics. Send a short description and any previous certificate. We will say what testing is needed before we quote anything. We cover Caerphilly and the CF83 postcodes, including Newport, for eicr diagnostics.
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