"people sticking ceramics on site 15pounds per m2, never heard of this price"
I havent heard of any contractors paying over 12£ a metre for ceramics in years, many pay 8-10£, even for porcelain if they can get away with it, yes, to english tilers not just foreign ones. blokes working on the olympics for 80£/day.
the O/P, 6.5£ is ridiculous but a team with labourers will cut the price in half, maybe 2 tilers and 3 labourers could still make an average return, labourers in the south making 50 a day, feeding the tilers and mixing all day its possible., dont know about up north, 30/day I heard, or use of apprentices, no minimum wage for an apprentice and you work them hard, basically free labour.