The Bath Authority of Pittsburgh Here at The Bath Authority, we are skilled in a broad variety of Pittsburgh bathroom remodeling projects and services. Whether you need help completing a quick bath makeover with a replacement bath, or even a more extensive bathroom remodeling vision, we back you up with years of experience. Ready for your bathroom remodel? Here is a quick list of the Pittsburgh bathroom remodeling projects that we deliver: • Replacement bathtubs installed by true experts • Replacement showers sized for any space • Combination bath and shower installers • Bathtub conversions & shower-to-tub conversions • Walk-in bath installation • Installation of shower enclosures, shower liners, and shower surrounds