Had an offer accepted on a house. To be honest we've offered just £8k under the asking price and it's nearing £400k so the vendor has done well out of us. Estate agent insisted on a survey as part of their protocol, great we'd have done one independently anyway. So paid £600 for a structural survey by a chartered surveyor. The house is Victorian and been totally refurbed from the heating, plastering, flooring, kitchen, bathrooms, front and rear garden, windows. You name it, it's brand spanking new and in great order. Except, which the survey has found, the roof. It is in total need of a replacement and full insulation. the estate agent was embarrassed they were unaware of this. We have stipulated we won't proceed unless the vendor pays for the new roof. Is that reasonable? Or is it up to us to replace once completed?