Sump covers
Overview
Our contemporary take on a sump hole cover. Made from recycled materials and natural aggregates, and proven to help combat urban warming in cities, our reinforced stone storm drain grates aren’t only more sustainable than cast iron catch basin covers, but can be customised to complement any urban design project.
Load class
- A15 - D400
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Compliance
Suitable for
Materials
Formats
Collections
Browse our sump cover collections
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Decorative sump covers made from natural aggregates. Consciously crafted + fully customisable.
From custom colourways to bespoke elements built from the ground up, collaborate with us on a custom sump hole cover design and bring your ideas to life.
We’re committed to creating high-performance hardscaping products for modern urban living that have minimal impact on our environment.
To find out more about our engineered stone catch basin covers—including details around pricing, custom sump cover solutions, and more—get in touch.
Our sump cover project portfolio
Catch basin covers on pedestrianised promenades, ADA-compliant sump covers for iconic skyscrapers, and more. Our engineered stone sump hole covers have played a part in some of the world’s most innovative urban design projects.
- Commercial
Burj Khalifa, Dubai
Soaring to a height of over 2,700 feet, the Burj Khalifa stands as the defining landmark of Downtown Dubai and a global symbol of architectural ambition. As the tallest skyscraper in the world, it anchors a vibrant urban district filled with luxury residences, world-class retail, and cultural attractions. Seamlessly integrated into the fabric of the city, the tower offers direct access to The Dubai Mall, the Dubai Opera, and the scenic Burj Park, while its commanding views stretch across the Arabian Gulf and the desert beyond. The Burj Khalifa is more than an engineering marvel—it represents the bold, future-facing spirit of Dubai itself.
- Public Housing
Bidadari Housing Development & Town Centre, Singapore
Bidadari is a landmark example of Singapore’s forward-looking approach to urban living—transforming a historically significant site into a vibrant residential estate rooted in community, sustainability, and biophilic design. Master planned to integrate nature with daily life, the development features lush green corridors, pedestrian-friendly streets, and a network of parks and public spaces that foster social interaction and well-being. As one of the city’s most ambitious public housing projects, Bidadari sets a new benchmark for liveable, inclusive neighbourhoods in a dense urban context.
- Institutional
Tarrawarra Musuem of Art, Australia
Set against the rolling hills of Victoria’s Yarra Valley, the TarraWarra Museum of Art: Eva and Marc Besen Centre is a refined addition to one of Australia’s leading cultural destinations. Designed by Oculus, the centre expands the museum’s presence with a carefully integrated landscape and architectural response that honours both the natural beauty and artistic legacy of the site. With its gentle forms, native plantings, and seamless transitions between interior and exterior spaces, the project reflects a quiet sophistication—one that invites reflection, engagement, and a deeper connection with art and landscape.
- Institutional
Singapore Institute of Technology (SIT) Campus, Punggol
The new Singapore Institute of Technology (SIT) campus in Punggol represents one of the country’s largest integrated university developments—designed to house applied learning facilities, research centres, and collaboration zones within a future-ready campus environment. Officially opened in 2024, the 91,000 square metre project is a flagship model for sustainable, walkable and digitally enabled tertiary campuses in Singapore. Masterplanned and designed by WOHA Architects in collaboration with Surbana Jurong, the campus emphasizes connectivity with the surrounding Punggol Digital District and includes a network of open plazas, courtyards, and green linkages across its expansive grounds.
- Commercial
Rainforest Wild Asia, Singapore
Nestled deep within Mandai’s tropical heart, Rainforest Wild Asia reimagines the traditional zoo experience, transforming it into an immersive journey through dense jungle terrain and breathtaking elevated canopy walks. This innovative rainforest sanctuary blurs the line between visitor and habitat, meticulously designed to evoke the raw beauty of untamed nature. Throughout the sprawling landscape, subtle architectural interventions are seamlessly woven into the environment, thoughtfully guiding visitors through a narrative of conservation and discovery, ensuring every encounter deepens their connection with the wild.
FAQ
Got questions? Ask away.
01 / General
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A sump cover is designed to cover and protect access points to drainage sumps, which collect and filter water before it enters the drainage system. Trench grates, on the other hand, are used to cover linear drainage channels, allowing water to flow through while maintaining a flat surface for pedestrian or vehicle traffic. While sump covers offer full coverage and prevent debris from entering the sump, trench grates provide continuous surface drainage.
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Jonite sump covers can be used as replacements for trench grates in specific scenarios where full coverage of a sump area is required for safety or aesthetic reasons. However, they are not recommended for continuous drainage applications, as trench grates are specifically designed to allow continuous water flow. It’s best to consult with our design team to determine the most suitable product for your specific needs.
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All our catch basin covers come in a choice of standard styles, colours and textures. Plus, you can customise our commercial sump covers further and collaborate with us to create something totally bespoke. To find out more about designing custom sump covers, visit our custom solutions page or get in touch.
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Yes, you can. Similarly to our trench grates, our sump covers can go up to D400 (500KN) load class, so can withstand heavy vehicle traffic. Plus, all our sump covers are available in a range of designs and colours.
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The matte finish of our sump hole covers means they are naturally non-slip. We’ve conducted Pendulum and Ramp tests on all our sump covers to make sure they meet industry standards for slip resistance. With a class V on the Pendulum test and an R10 on the Ramp test, our modern sewer covers can handle most locations and applications.
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We’re committed to building better places for people and our planet. We manage our energy, water, and waste with the future in mind. We also use at least 30% recycled aggregates in our stone grating products, which reduces carbon emissions by up to 80%. All our decorative grating is Singapore Green Building Product (SGBP) certified (4 ticks, leader). This means when you choose our sump covers, you can score additional points under the Functional Systems Criteria (Flooring, Ceiling, Roof, External Wall, Internal Wall and Door systems) and/or Singular Sustainable Products outside of Functional Systems Criteria.
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Jonite sump covers are made from a unique engineered stone composite that’s more durable than traditional metal alternatives. Unlike steel or cast iron, the stone in our sump covers is non-corrosive, lighter in weight, and retains its appearance over time without rusting or chipping. Plus, it’s flexible enough to be used to create custom sump cover designs.
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Jonite sump covers can help mitigate urban warming by reducing surface heat absorption. The engineered stone composite used to create our decorating grating reflects more heat than traditional materials like asphalt or concrete, helping to keep surrounding areas cooler.
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Our heavy-duty sump covers are engineered to handle both pedestrian and light vehicular traffic. This means they are suitable for driveways, open channels and kerbside drainage.
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Jonite sump covers are highly resistant to rust and corrosion. Unlike steel or cast iron, Jonite’s engineered stone composite does not corrode when exposed to moisture, pool chemicals, or environmental elements.
02 / Purchasing
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Currently, Jonite only accepts wire transfers for all sales of goods. To find out more about payment arrangements or for assistance with the transfer process, please contact our sales team.
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Yes, all our grating products come with a one-year warranty that covers manufacturing defects (unless otherwise stated). This warranty reflects our commitment to high-quality, durable products. For more information on specific product warranties, please check out our warranty policy.
03 / Delivery + shipping
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Shipping costs depend on the quantity of products ordered, the total weight of the shipment, and the destination. By default, all international exports are shipped FOB (Free on Board) unless otherwise requested. We can also arrange air freight or door-to-door delivery upon special request. For detailed shipping information and quotes, please reach out to our sales team.
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Delivery times vary depending on the quantity ordered and the destination. Custom or bulk orders may require additional time for production and shipping. Once shipped, tracking information will be provided. Contact our team for an estimated timeline based on your order details.
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Yes, we ship internationally to many regions. International orders may incur additional customs or import fees, depending on the destination country. For more details on shipping availability and rates, please reach out to our team.
04 / Installation + maintenance
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We recommend following the specific installation guidelines provided with each Jonite product to ensure optimal performance and durability. For best results, please refer to the installation guide provided with your product or consult our team for additional guidance on custom installations.
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Yes, Jonite products can be installed by a general contractor. However, for complex or customised installations, we recommend working with contractors who have experience with architectural stone or composite materials. We also offer additional consultation services for installation support.
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All our grating products are designed for easy maintenance. We recommend regularly cleaning with mild soap and water to remove dirt and debris while avoiding harsh chemicals that could damage the composite surface. Periodic inspections to check for buildup in drainage openings will help maintain optimal performance. For more detailed maintenance instructions, please consult our maintenance guide.
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We do not recommend cutting Jonite grates, as this may compromise the internal reinforcements. However, certain pieces, such as blank-ends and grate-tiles, are specifically designed to be cut to fit odd ends and angles. For the best results, we recommend consulting with a professional installer.
