Induction clearance

dirty_magic

Aside from the moisture issue, doesn't it look odd having the cupboards overhang? Couldn't you have got an 800 extractor? I think it would look strange to have an extractor smaller than your hob with cupboards overhanging.

premkit

If you have told them a 900 hob is to be fitted, the designer has dropped the ball. The wall units need to be reduced at least 100mm +.
5 week fitting is incompetent, unless its a building project also.