Qld - I've had the same tenants for 3.5 years and a couple of bad PM's. I resided at the property prior to leasing and there was never a mould issue in grout. Now the grout is extremely mouldy. Has anyone been able to permanently get rid of mould once it's been neglected for this long? I'm thinking it will need to be thoroughly scrubbed and re-grouted or sealed. Can the cost be passed onto tenants if it needs regrouting? Every inspection has shown it hasn't been cleaned since being occupied.