Ceiling repair, plasterboard is sagging

Glenn requested 3 quotes from Plasterers in Alexander Heights

The plasterboard ceiling in one of my rooms at home is sagging and at the joins is coming apart.

Plastering
plaster to patch up above stove

White set a laundry room
All old plaster is been take off ready to be white set, 15 square meters

Bedroom Wall to be plastered
Bedroom Wall currently exposed brick requires plastering, holes to be...