Don't really worry. The base was a point of contention because it was insulated thinner than specified, and they tried to slip that by us. Then someone finished it off with probably even less enthusiasm than before, but always with the claim of particularly German quality workmanship. Meanwhile, everything has calmed down, the house has turned out nice, the stress is over, and as far as I'm concerned, it can stay that way, even though it's obviously unprofessional. Maybe in the summer I'll get ambitious and grab a shovel.