- Reaction score
- 2,602
I don't believe the cert would cover your --- though - I believe it would actually help to hang you if something happened. It certifies that the installation work complies with BS7671 when it doesn't, which is why none of the required tests are relevant to the work done without a cpc.
The MW cert would be for the work you are doing, namely replacement of class 2 fittings. The safety of the fittings is not reliant on the presence of an earth connection (although, to comply with the regs, one is required at each point).
As others have said, I'd do the job and inform the customer of the situation in writing (cert, e-mail, whatever).