Sorry, being a charity does not in itself give any benefits in relation to recovery of VAT. Whether VAT is payable will depend on whether the supplier is registered for VAT and the nature of the supply. If the village hall is a listed building, that would help. The HMRC advice is unhelpful, because if there is a possibility of zero rating the work then this must be done by the supplier when the invoice is raised, and will be difficult to alter afterwards. The supplier should be able to get advice before raising an invoice.