Rip off Britain - Season 9 Episode 12 -

Former neighbours relive the moment they watched as mysterious cracks suddenly appeared in their new-build homes, leading to their properties having to be demolished.There is also a look at how a rogue builder who had left a string of houses damaged or uninhabitable was finally brought to justice, and why a product supposed to weatherproof a home has left one woman dreading what might happen every time it rains.