I am afraid there is no way ANY competant person would do this in one day.
I speak from experiance where a cowboy company set up for just such a task employed whomever they could to get extra hands on deck only to find that nothing in rush work was to a standard we pride ourselves on.
Unfortunately councils will go for the cheapest tender.
I was called in to help out a friend who was subcontracted to do these 1 day wonders, when I arrived with three of my own lads what we saw was shocking, and the stress was all too aparrent.
At around 16:00 hrs the head of the council arrived with the bloke who was in charge of the rewires, guess what I said
Well you know me for opening my mouth.
In the rush they had almost demolished the house, a double socket in one bedroom was almost 3 block square. Cables had been tangled around heating pipes, one electrician took nuetrals down to switch, the other used switch wires
Needless to say it was a mess, as can be expected if made to rush. I actually told them that if this house is given a certificate I would complain to the building control.
Another company doing the same type of work gave two days for a full rewire, what a difference, still high pressure work but all cables where in prescribed zones, away from other influences, everything was chased out perfect and a real treat to work on.
I am sorry but these companies are set up for one thing and that is volume over quality, and they get away with it, such is the way part p is policed.
I wish I was an enforcement officer, I would take any licence from them in an instant.