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You'd obviously need someone to come out an determine the cause of the movement
Would that be a structure engineer (current), I take it?
Thanks for the pointers too all.
Although the neighbours are currently building an extension, it's at the other side of the house. Probably worth checking out though.
NotThamesWater
@t4ny4
I never did any underpinning work myself but I gather it is done from outside and done in sections, with cavities dug out under say a 3ft length of wall footing, and then filled with concrete. You'd obviously need someone to come out an determine the cause of the movement and how much if any of the house needed underpinned.
I don't think it's super disruptive and shouldn't really affect the inside of the house. But depending on the extent of it, and what surfaces you've got around the house, you may be needing to replace a load of concrete/tarmac/whatever, as well as the actual underpinning work.
It can also be caused by stuff you wouldn't think of, like if next door put in a new extension or something, with a concrete foundation, it can disrupt the path of the ground water and raise or lower it around your foundations. Same effect as trees essentially.