let's share my pricing....
I get my contractor paint for me...2.5 storey terrace house, 22x70, include paint and labour, use ICI paint, include grill, wood door, all the walls outside the house and inside the house....
Total 5k

Yup....I agree with Kelvyn, it's very subjective, for me, I think their work is quite nice, 3 layer of paint is being applied, but the only problem is the progress is quite slow....

I have pmed you the contractor no

For my case.....
Do they
01) Strip off old paint? - hmm....this one I am not sure
02) How many layer of primer - Seriously not sure
03) How many layer of paint? - he said 3 layers
04) Clean up after paint? - yes
05) Do they seal all old holes? - Yes