Would love to get advice from anyone with expertise as the more I think about this the more worried I'm getting!
We had a ground floor extension last year which involved replacing load-bearing walls with steels. Due to delays the props were in place for quite a while after the walls came out, and then the steels were difficult to install. The extension itself looks fine but the first floor is showing cracks in the walls, on a plane like a slice about a third of the way back from the rear of the house. The cracks are all fairly fine, about 1mm, and mostly vertical.
DH thinks its just normal settling post-extension and not a problem. I'm worried that the back of the house is about to fall off.
If I ask the building inspector about them, will I end up with unsigned-off work? Would the builder be liable, or would we be, generally speaking? We weren't very happy with our builder and wouldn't expect him to do much to remedy anything. Plus the extension already went miles over budget and we have no margin for any more work.
This is keeping me awake and I'd be very grateful for advice from anyone who knows more than me! Example photos attached. Thanks in advance...