When my house was being built in 2006 I noticed they framed it within two days of pouring the foundation. I asked around and I was told you should wait at least 7-8 days before framing. I started to notice numerous cracks in the foundation and one that went all the way through the foundation and into the ground. I talked to the builder and he assured me everything was fine. This week I noticed I have a crack in the house starting at the wall and running through three tiles. Now I don't remember dropping anything and usually when something is dropped on the tile, it leave a chip too. This is an almost perfect line. Should I be worried about foundation problems?

I also had mold and infestation of ants within the first month of moving in. My window sills and walls are also unlevel. I have come to find out my builder is not reputable.