probably safer to have plumber remove the old bath and taps first and then you will need a plumber, maybe a carpenter, waterproofer and tiler to install the new bath but i would consult the plumber before attempting to remove the old bath and before buying any new fixtures to make sure that everything suits

Carpenter, water proofer, plumber and tiler.

Thanks guys, I had read that a plumber beds and "installs" but it seems that'll be a carpenter.

Agreed about getting plumber to decommission. Only early days so far.

Only a Plumber in NSW is licensed to bed ( set ) bath, ( Carpenter not required to build bath surround ), a good tiler builds the bath in with Hebel and will waterproof relevant areas,

Bathroom demolition would include bath removal,

Thanks, that's what I thought and had read. Was that a plumber bedded the bath and plumbed it. I'm in QLD