The contractor says this is fine, and that he'll seal the gap with polymeric sand. It doesn't look okay to me. He also has the grade above the poured basement floor level. The one on the right is where he wants to put it, but I think it should be lower, like the one on the left.
To fix this, he'll have to regrade the driveway, and he's already compacted it. Am I crazy to demand that he fix it so that the grade is lower than the bottom of my siding and below the level of the basement floor?

