It's a shame you have to wait so long for him to come back.
This is in part due to ourselves to be honest.
We are now back at work & we work similar hours, so we are only available weekday evenings (good luck getting a tradesman to come out in the late evening) or weekends. He can't do 2nd January as he's away on holiday (Fair enough) so we're booked in for the 16th which isn't too much of a wait considering the only other real date is the 9th.
I know what you're saying though - it's still a few weeks, but like i say, this is largely due to us. I guess we could try get someone to house-sit, but it's best one of us being here ourselves because if anything went wrong & let's say i came back here & stated it (or just said to anyone in general) - i could almost guarantee the response would be, well you should've been at the house yourselves.
You've not had any light switches etc disturbed for decorating etc have you?
Not for decorating. Although the builders did have the light switches off as part of the tanking process, but that's all it was - unscrewed & then re-screwed.
securespark - yes it is possible of course. We've never sat there with the fusebox sitting & flicking switches really. Like my wife said, if she's needed to kill the downstairs lights, it'll have been daylight with no need for lights to be on, so the lights probably would've been in the 'correct' order & not the funny/strange setup order, so we'll have known no different.
Perhaps it was only chance that made us notice the problem - by the iffy switch being on?
Although i do wonder why the electrician believes it's the switch for the diner (extension) that is located in the living room which is causing the fault - when it seems to depend on which switch is 'on' for the landing light as to whether downstairs can be killed properly or not.