We’ve got an integral garage but annoyingly there is no access from the house. The only way to get into the garage is through the main vehicle entrance which isn’t very convenient. We’d like to create a doorway from our hallway directly into the garage. Has anyone done this? We would need to move a radiator but other than that is there anything else we’d need to consider? Would we need a structural engineer, building regs, plans etc? Could we have a standard door or would like need to be an external one or a fireproof one? Any idea of reasonable cost? Thanks for the advice