Next door have had builders in for a month or so, tearing the place apart.
Today I see they have about 15/20cm deep polystyrene sheets, insulation? being attached to the outside wall. They took off window sills earlier.
I am concerned as a semi, they have taken internal walls out and are putting the second layer of external wall on the outside. They may also have taken out supporting walls.
They ignore me when they see me, and they did the same to another neighbour. They blocked the drains, he only asked they flush their loo. There seem two or three families living there and they don't speak English.
What do I do?