: Hi!: I recently bought a new house. It has 2 bathrooms with fiberglass : bathtubs. Both creak. Since the house is under warranty, I would : like to get this fixed as soon as possible. However, the company : rep. says that it is natural for the bathtubs to creak (even when : no one is in the tub).: How true is this? Or is he just fobbing me off with a story?: Any help would be appreciated.: Thanks.: -Ketan : [email protected],Fiberglass tubs can be installed with either plaster or mortar under the tub to support them on the bottom. Note: fiberglass tubs will creak more than other materials. regards, Terry Love