When you’re designing a wet room with a concrete floor, getting the drainage right isn’t just a functional decision; it’s a foundational one. The right drain kit ensures efficient water removal, long-term waterproofing, and a seamless integration with your chosen floor finish, whether that’s traditional concrete, resin, or polished microcement.
You’re likely looking for more than just performance. Aesthetics, durability, ease of installation, and future-proofing all play a part in specifying the right product, especially when client expectations are high. That’s why we’ve put together this guide to the best wet room drain kits for concrete floors, whether you’re working on a high-end residential ensuite or a luxury commercial spa.
Below, we’ve grouped our top-performing kits by drain type to help you choose the most suitable option for your design and substrate.
Linear drain kits offer a minimalist, modern aesthetic while ensuring efficient water drainage. These systems are perfect for large, open wet rooms where seamless design and functionality are key. Whether you prefer a wall-mounted or integrated solution, our linear drain kits provide flexible installation options, premium materials, and customisable finishes to suit any style. They’re ideal for contemporary designs, offering excellent drainage performance and ease of maintenance.
The 1k UniSlope kit is a good option for a simple one-way slope/fall towards a drain against the wall. Choosing this drain means you will not need to cut tiles toward the drain, which is ideal when working with large tiles or stone. Additionally, because of its placement, people won’t stand on the drain whilst showering, ensuring good flow and a more pleasing showering experience. Overall, for a clean and simple aesthetic that gets the job done, this is the ideal solution. This drain kit comes with the drain, a unislope board, and a tanking kit to ensure simple installation and reliability.
If you are looking for a flexible, free-standing solution, then the 3K UniSlope kit could be the right choice for you. The 3k unislope kit offers additional placement options, meaning it can work well with large or small tiles, tricky joist positions, and even an ultra-low profile. The kit comes with a BBA-approved stainless steel drain, solid unislope boards with a built-in gradient, and an ETAG 022 approved tanking/waterproofing kit.
With the 4K UniSliope Kit, you will be able to craft a wet room with 4-way level access for your shower, ensuring that water can easily drain from any angle. This drain kit offers a variety of finishes, including PVD coloured panels in either black, brass, copper, brushed stainless steel, or polished stainless steel. You will be spoilt for choice, meaning you can fit the exact aesthetic that you are after. It also offers a range of outlet sizes from 32 l/min (litres per minute) to 102 l/min, meaning it is suitable for a wide range of jobs.
The glassline kit allows you to create a separate screened shower enclosure with an integrated slope, built-in shower channel, and linear drain against a 10mm shower screen. This can be made extra aesthetically pleasing with the invisible wall mounting brackets. The kit is customisable with both the glassline base and glass offering multiple options. The base can be customised with a range of cover options from brushed steel grates, to tileable covers. The glass can be supplied with brushed stainless steel or black powder-coated frame options and there are no visible screws to help create that aesthetic finish.
The SharpSlope linear kit is ideal for striking that difficult balance between functionality and beauty. The drain can either be the focal point or blend into the background, depending on your preference. It offers 4-way level access, can be rotated 360°, and can be trimmed down to fit exactly into the layout that is required. This flexibility, mixed with premium quality, long-lasting materials and aesthetics, makes this an ideal option for your next wet room project.
These drains are great for smaller wet rooms where space is limited, but you still want to create an aesthetically pleasing result. Corner wet room drain kits offer two-way level access and are built to be incredibly functional and low-maintenance.
This drain offers an effective drainage solution for when space is a limiting factor in designing your latest wet room project. Balancing aesthetics with functionality is what our drains specialise in, and this is no exception. The UniSlope 2K has been installed in exclusive hotels, luxury properties, and apartments, which truly demonstrates its versatility.
Square drains are perfect for wet rooms where you want a modern, clean design with efficient drainage. These drains are ideal for larger spaces or rooms where you prefer a central drainage system. They really make the drain the star of the show, with their sleek, minimal look, square drains integrate seamlessly into both contemporary and traditional designs. They offer balanced, efficient drainage and are easy to maintain, ensuring both style and functionality.
The SharpSlope Square Kit features an integrated stainless steel drain, a sealed gasket, and a flexible waterproofing kit, which ensures long-lasting durability. With its sleek, minimalist style, it’s available with a variety of aesthetic options, including a brushed nickel frame or bold, modern finishes like brushed bronze. The SharpSlope Square Tile Insert is perfect for achieving a high-end, minimalist wet room design that performs as well as it looks.
This square panel drain not only enhances the aesthetic appeal of the wet room space but also helps overcome common installation challenges. Ideal for both cement and wooden floors, the SharpSlope Square Complete Kit is compatible with underfloor heating and offers flexible installation options. This drain can be incorporated into wet rooms of all sizes, making it an ideal choice.
Every product featured above is specially designed or fully compatible with concrete or polished concrete substrates. That means:
At WM | Wetroom Materials, we’re here to help you design with confidence. We partner with top suppliers to ensure the parts that we provide are of the highest quality. Whether you’re working on a single high-end bathroom or an entire multi-residential development, we can help you deliver elegant, future-proofed wet rooms.
If you are looking for high-quality materials to get your next wet room design project going in the right direction, get in contact today.