The thing is if you don't do the preparation the builders would be entiltled to charge for the delay were you to need a different foundation method. You can get a trial hole dug for just a few hundred pounds, yet an unexpected problem will cost you a lot more in fees for the delay while you resolve it. Sites cost about two hundred and fifty pounds a week to run so you don't want to have holdups.
I think very roughly steel or ring beams add a few extra thousand in most cases.
The foundations get inspected by the building inspector on site.
I think very roughly steel or ring beams add a few extra thousand in most cases.
The foundations get inspected by the building inspector on site.