I called them once for an estimate, our fiberglass tub had cracked. They wanted almost $5000 to put a fitting over a cracked tub, way too much for what I needed or wanted. I almost laughed when the guy told me the estimate, he was not happy when I told him I never imagined it would be that expensive.
We had a new cast iron tub installed for just under $2000, that one is NEVER going to crack.