Freestanding Concrete Washbasin with Shelf
£1,650.00
- * Hand-cast in our London workshop, tailored to each batch.
- * 20 custom colours available in our standard collection.
- * Sealed with a professional-grade, stain-resistant penetrating sealer.
The freestanding concrete washbasin sits elegantly within a minimalist, brass-finished steel frame. A matching concrete lower shelf completes a composition that reads as fine furniture rather than standard sanitaryware, that unit anchors your washroom with a clean, structural silhouette. It beautifully balances the warm metallic gleam of brass with the tactile permanence of solid stone.
The washbasin design suits Japandi, Soft Modern, and Organic Modern bathrooms perfectly, and provides a completely self-contained architectural statement. Therefore, it works beautifully in high-end residential en-suites, minimalist cloakrooms, and boutique hospitality washrooms. It answers the need for a standalone piece rather than standard built-in cabinetry.
We hand-cast our basins using solid Ultra-High Performance Concrete (UHPC). The material retains its natural structural density while offering a refined, smooth profile. We make each freestanding unit to order in our London workshop. We meticulously hand-finish every surface, and apply a professional-grade, multi-layered penetrating sealer. This protects against moisture and daily wear while preserving the concrete’s organic, tactile character.
You can choose from any of our 20 curated colours, alongside bespoke concrete finishes like polished terrazzo or a hand-packed marble effect. To ensure absolute cohesion across your project, our freestanding steel frames can also be tailored to your palette, offering premium powder-coated finishes including classic 4-digit RAL colour. Please get in touch to discuss your custom layout and finish brief.
Please note: This product includes the concrete basin and steel stand only. Taps, waste fittings, or plumbing accessories are not included.
Explore our Bespoke Concrete Fabrication Process or view Concrete Colours & Finishes to see the full palette and surface treatments.
Product Specifications
- External Dimensions: 450mm x 350mm x 960mm
- Approximate Weight: ~30 kg
- Waste Outlet: Standard 45mm Ø — compatible with standard UK / European unslotted waste assemblies.
Note: Due to the hand-cast nature of architectural concrete, dimensions may feature marginal organic tolerances of +/- 5mm.
Bespoke Fabrication: We offer bespoke size fabrication for this design. Please get in touch to discuss your custom project requirements.
Available in a curated range of natural tones: Elemental Greys, Warm Earth & Sand, and deep Aqua & Forest hues. Each designed to harmonise with contemporary interiors.
Custom pigment matching is available for bespoke architectural projects.
View our full Colour Palette & Samples for a detailed look at our concrete finish options and colour details.
Frame Finishes & Bespoke Colours
Our freestanding steel frames are finished using an industrial-grade powder coating technique, delivering a smooth, resilient, and fully opaque surface engineered for wet environments.
- Standard Premium Finishes: Available in Brass/Gold, Architectural Bronze, and Matt Black.
- Bespoke RAL Matching: To seamlessly integrate with your design scheme, frames can be powder-coated in any classic 4-digit RAL colour upon request.
- Samples: Physical finish samples coated on durable aluminium panels are available to specify for your mood boards before fabrication begins.
To request a custom frame colour, simply get in touch with the studio via our enquiry form with your specified RAL code.
Seeking a bespoke tone or tailored artisanal finish to match a specific interior palette? We frequently collaborate on custom colour matching and studio commissions. Reach out directly via email at hello@gumiworks.com, or use our Customisation options above to submit your project requirements.
Gumi Works offers a spectrum of hand-crafted surface expressions designed to elevate the tactile experience of high-performance concrete. Our standard collection includes 20 curated solid colours to choose from.
Additionally, we also offer the following artisanal finishes for our concrete products;
Terrazzo & Aggregates: Our Solid Polished finishes can be upgraded to a Bespoke Terrazzo, incorporating curated stone aggregates for a mid-century or contemporary play on light and shadow.
Artisanal Veining: For a timeless aesthetic, our Marble-Effect Veining creates a natural, authentic look, mimicking the organic movement of stone while retaining the strength of GFRC.
Hybrid Luxury: Our exclusive Metal-Concrete Blends fuse metallic elements with concrete for a high-end, natural luxury statement pieces.
All finishes are sealed with our Penetrating Reactive Sealer, ensuring a breathable, stain-resistant surface that maintains its integrity in both residential and commercial high-traffic environments.
If you are interested in these artisanal finishes for this piece, contact us directly via email at hello@gumiworks.com, or use our Customisation options above or below to submit your project requirements.
Learn more about our Production Process and how we craft our high-performance GFRC.
Handcrafted using High-Performance GFRC Concrete (Glass Fiber Reinforced Concrete). This advanced composite offers superior flexural strength and durability compared to traditional concrete. We utilise a Low-Carbon, Silicate-Free cementitious matrix, sustainable sand aggregates, and a Penetrating Reactive Sealer system to ensure a luxury finish that ages gracefully while maintaining structural integrity.
Frame Construction: Heavy-gauge, brass-finish powder-coated steel frame featuring a integrated storage shelf. -Colour and finish customisation available.
Learn more about our Production Process and how we craft our high-performance GFRC.
Typically 3–6 weeks from order confirmation. For bespoke commissions, timelines may vary based on design complexity and studio workload.
We optimise logistics by destination zone to ensure secure transport:
UK Mainland: £75 delivery via secure pallet distribution networks or tracked couriers.
Europe, US & Rest of the World: Delivery is available via custom enquiry. Please contact the studio for a bespoke shipping calculation.
Packaging: We ship the freestanding washbasin securely inside a protective wooden crate.
Fulfillment Method: All shipments arrive strictly via kerbside delivery. Drivers bring items to the nearest accessible kerb or driveway entrance. Couriers are not insured to carry items indoors.
🛑 Critical 24-Hour Inspection Window: You must unwrap and check your concrete surfaces within 24 hours of delivery. Please log any transit discrepancies via email within this window. This action keeps your freight insurance coverage valid. Read our full setup guidelines on our Delivery & Logistics page.
Standard retail orders are eligible for a statutory 14-day return or cancellation window from the official date of delivery signature.
To qualify for a complete refund, items must adhere to our return-policy criteria:
- The item must be completely uninstalled, unplumbed, and unaltered. Once a concrete basin has been test-fitted into plumbing rings or sealed to a vanity unit, it is classified as a used item and is entirely ineligible for return.
- Returns must be safely packaged inside their original structural packaging/crating and foam buffers. Items returned without original safety packages may damage in transit.
- The buyer retains full responsibility for organising and funding fully insured return freight with reputable couriers.
Review our complete policy framework, value deductions, and 5-Year Structural Integrity Guarantee details on our dedicated Returns, Cancellations & Guarantees page.
Maintain the premium surface of your luxury concrete basin with simple daily upkeep practices:
- Clean regularly using warm water, a soft microfibre cloth, and a gentle pH-neutral liquid soap.
- Never utilise bleach-based bathroom cleansers, heavy chemical descalers, citrus-based solvents, or abrasive scouring pads, which will chemically degrade the protective topical sealing layer.
- Wipe away heavily pigmented spills or highly acidic compounds (such as hair dyes, nail polish removers, or harsh facial acids) immediately to eliminate surface staining vectors.
For further details, visit our Concrete Care and Maintenance page.
How long does production and delivery take for the freestanding concrete washbasin?
We handcraft every concrete basin with stand to order in our workshop. Production typically takes 3 to 6 weeks. Once we dispatch your solid concrete sink, the courier will provide your estimated delivery date.
What plumbing fittings do I need for this modern freestanding concrete washbasin?
This luxury washroom sanitaryware features a standard 45mm UK/EU waste outlet. It requires a standard unslotted waste fitting. You can easily pair it with wall-mounted taps or tall, deck-mounted basin mixers.
How do I install a concrete basin with stand safely?
The unit arrives pre-assembled inside a protective wooden crate. The minimalist bathroom vanity frame transfers all weight directly to the floor. However, discreet rear tabs allow for secure wall anchoring to prevent tipping.
Can I request a custom size freestanding concrete washbasin?
Yes. We offer bespoke size fabrication for this specific handmade concrete basin design. Please get in touch with our London studio to discuss your unique project dimensions.
Is a solid concrete sink easy to clean and maintain?
Yes, maintenance is very straightforward. We apply a multi-layered penetrating matt sealer to protect your handmade concrete basin from stains. Clean the surface regularly using a soft cloth and mild, pH-neutral soap.
What colour choices do you offer for this minimalist bathroom vanity?
We offer 20 curated pigmented colours for our freestanding concrete washbasin range. Our team can also formulate bespoke concrete finishes like polished terrazzo. Contact us today to discuss your design brief.
Interested in further customising sizes, colours, or finishes of this piece?
Customise this piece