Established in 1972, Cass Brothers Fine Bathroomware originally started as a small bathroom plumbing supply business in Petersham. Since then Cass Brothers has grown and expanded its horizons to become one of the pre-eminent designer bathroom supply houses in the country.

Cass Brothers has rejuvenated countless numbers of bathrooms in the Harbour city and now has two flagship bathroom showrooms. The Petersham location still supplies plumbing supplies but has been enhanced by an enormous bathroom showroom while the Waverley showroom has earned a reputation amongst industry professionals as the premier hotspot for innovative bathroom design.