Kast Concrete Basins – Sculptural Concrete Design for Contemporary Bathrooms
Kast is a British design-led brand specialising in handcrafted concrete basins, offering a distinctive and modern alternative to traditional bathroom fixtures. Designed and made entirely in the UK, Kast basins reflect a refined aesthetic rooted in precision craftsmanship, sustainable production, and cutting-edge material innovation. With a studio and factory located on the edge of Sherwood Forest, Kast creates each basin using their own signature mix of real, aggregate-based concrete.
The material is the heart of Kast’s identity. Unlike imitation resin or composite products, Kast uses authentic limestone aggregate concrete sourced from Derbyshire, carefully blended with high-quality pigments to achieve an unmatched spectrum of natural tones and textures. This commitment to real concrete ensures each basin has genuine depth, character, and durability. The result is a product that is not only visually striking but also incredibly strong, stain-resistant, and designed to last a lifetime.
Each Kast concrete basin is cast to order, giving designers and homeowners the flexibility to choose from a wide palette of curated colours and finishes. The Kast collection includes a diverse range of styles—from minimalist wall-mounted basins and compact cloakroom options to bold double vanities and sculptural freestanding forms. Every design is meticulously engineered with precision-milled moulds to ensure crisp edges, smooth surfaces, and consistent quality. Popular models include the Elm, Rho, and Lambeth, each offering a unique architectural form that highlights the raw beauty of concrete.
Kast basins are particularly suited to high-end residential, hospitality, and commercial bathroom projects where individuality and craftsmanship are key. With over 20 years of experience, the Kast team brings together technical expertise and artistic vision, pushing the boundaries of what concrete can do through constant experimentation and refinement.
As the original innovators in concrete basin design, Kast continues to lead the market, offering an exclusive product that merges form and function with real design integrity. Their on-site factory and design studio work hand-in-hand, ensuring complete control over the entire process—from concept to casting to quality control.
At Alternative Bathrooms, we are proud to partner with Kast to bring you a curated selection of concrete basins that celebrate material honesty, timeless design, and British craftsmanship.
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