As a working brickie I would have to share some of the above comments, especially the quarter bond on the blocks, if one of my lads did that I would kick it down and tell them to start again, I reckon about three days work and it would be done, I’d feel guilty otherwise, price wise, blocks are around £10 per square metre( £1 each) brickwork about £300 per thousand, that’s top whack, offer him those prices and see what he says, means he’ll be on about £50 a day at his current pace, or save some money and do it yourself, buy some building profiles for about £150, bolt them on and away you go, if you want something doing properly do it yourself, good luck