Cleaning grout in the bathroom

[Pipbin]

and the sealant stuff too.

What can you suggest? It just looks so grotty and the sealant looks mouldy. I've tried bleach, scrubbing, usual bathroom cleaner but nothing seems to work.

dettol mould and mildew remover - spray it on and leave it for a few hours to work (it says a few minutes on the bottle but i leave it for longer)

If the sealant is mouldy and the mould won't clean off it probably needs replacing, which can be a tedious job, but is well worth doing to revive the place.

Be sure to remove all the old sealant before applying new. If it is sealant around the bath, you need to half fill the bath with water before applying the new sealant and leave the water in until the sealant has cured/dried. If you don't do that then as soon as someone has a bath or steps in to use the shower the bath it will pull away from the sealant and your new seal will not be watertight.