Basins & Washspaces

The luxury bathroom basins and washspace designs have gone beyond being just a functional hardwares. They are a sensory sanctuary. It is the space where your day begins and ends. Our collection of solid-cast concrete basins and washstands introduce a grounding, tactile element to these daily rituals. Moving away from the cold, sterile feel of traditional porcelain. Each. of our basins and washstands are hand-finished, offers a velvety texture and an organic warmth that develops character over time. Whether it catches the soft glow of morning light or sits under minimalist architectural downlighting, a Gumi Works basin serves as a striking, sculptural focal point.

The Collection: Countertop & Freestanding Basins

Basins designed to integrate flawlessly into luxury residential homes, boutique hospitality and premium commercial spaces. Our solid-cast concrete bathroom and vanity collection encompasses a versatile range of architectural elements:

Monolithic architectural washroom statements. These standalone pedestal washbasin models command presence, making them ideal for dramatic powder rooms, luxury suites, and design-led commercial spaces.

These basins are designed to sit masterfully on bespoke vanities, floating shelves, or raw stone surfaces. These vessel sinks bring a refined, geometric contrast to your bathroom cabinetry.

Concrete Basin and Washstand Collection

Each piece is made to order from our curated custom concrete colours in our London studio.

A bespoke concrete terrazzo finish detail with green concrete sample, London.

Material Integrity & Craftsmanship of Concrete Basins

The Gumi Works Standard: Every basin is solid-cast using advanced high-performance concrete (UHPC / GFRC). We do not use superficial “concrete effects” or microcement coatings. The colour, strength, and velvety texture run completely through the entire piece, resulting in an authentic material density that imitates nothing.

To ensure longevity in wet environments, each piece is treated with an advanced, multi-layered sealing system that deeply penetrates the stone. This creates a highly hydrophobic barrier against water, soap scum, and oils while maintaining the natural, matte finish of raw concrete.

Concrete Colours

Concrete Basins and Washstands FAQ

Q: Are concrete basins prone to staining or water marks?

A: Our advanced sealing process ensures that water pools and runs off easily, protecting the basin from everyday bathroom use. Our professional-grade sealer provides high resistance agains water and cosmetics. However, we recommend avoiding prolonged contact with harsh acids, strong hair dyes, or abrasive bleach cleaners to preserve the finish.

Q: How do I clean and maintain a solid concrete basin?

A: Maintenance is remarkably straightforward. Clean regularly with a soft microfibre cloth and a mild, non-abrasive, pH-neutral soap (such as a gentle dish soap or specialized stone cleaner). Avoid scouring pads or highly acidic cleaners, which can wear down the protective seal over time.

Q: Are these basins excessively heavy? Do they require reinforced plumbing walls?

A: While our countertop models are easily supported by standard vanities, freestanding monolithic models carry a more substantial weight. We provide exact weight specs prior to casting so your installation team can ensure the flooring or sub-structure is properly prepared.

Q: What is the typical lead time for a custom or made-to-order washbasin?

A: Our handmade basins and vanities require a precise casting, curing, and multi-stage sealing process in our London studio. Standard fabrication lead time is generally 3 to 6 weeks. For large-scale commercial or multi-unit residential projects, please get in touch early to schedule production slots.

Bring Architectural Character to Your Next Bathroom and Washroom Project.

Beyond our curated collection of concrete basins, Gumi Works operates as a bespoke fabrication partner for luxury residential and commercial developments. Going beyond our standard basin range, we can work seamlessly from your architectural plans and CAD drawings to cast custom vanities, integrated washroom units, and unique architectural surfaces.

Let’s discuss your project requirements.

Alternatively, message the studio directly for advice on finishes, lead times, or feasibility.