On 2015-05-31, dennis@home wrote:

I have loads of building related horror stories being friends with the
head of building control. I have been around one site where about 20
houses had all developed cracks and were slowly moving down a slope
after less than six months. One where the lean to was assembled from
concrete blocks with nothing in between them, just waiting for a windy day.

To be fair, that doesn't sound like an *electrical* problem.