What is the average cost per linear ft to turn a crawl space into a full 8ft foundation? One shared 12ft wall is already underpinned on the neighbours side. Does the cost differ for that section? Also one 10ft wall is interior, separating the crawl space from the partially dig down basement area. Does that internal wall need to be underpinned too or can it just be removed?
Just underpinning is $700.00 per lin.ft.
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