where to find licensed wiremen? is there a directory or something?

I used the same unfortunately those jobs seem to be subbed out to others, where sometimes I don't feel confident when they answered something incorrectly.

I think the outcome is probably same in most cases - this is a known trend in Malaysia even by many main cons who do house renovation would tell the same that most of them on "shared" licenses.

This allows some of the licensed and good ones charging at superb high price, which might be ok from safety point of view but they are usually reluctant in taking a one-off job - they are more interested in big project like 50k for whole house wiring.