We aren’t expecting a completion certificate for a while (maybe later this year). Two year lock in on expensive self build mortgage has just expired. Our house is liveable (mortgageable) but not yet finished. Things to do include final bit of cladding, all landscaping and driveway plus some other internals. Plus a bl**dy roof light repair and internal making good. Currently Ecology SB mortgage. Does anyone have any experience of remortgaging before a completion certificate is issued? Could do with saving some money......