7 Best Water Softeners 2025 in the UK

The BWT WS555 Hi Flow Luxury Water Softener is a compact solution ideal for households looking to install a water softener without sacrificing kitchen space, as it fits conveniently under a sink. One of its primary strengths is the ease of installation, enhanced by the inclusion of an installation kit and free home commissioning, which is a significant advantage for those looking for a hassle-free setup. The device is compatible with both salt and tablets, providing flexibility in terms of maintenance and use.

The 14-litre size is suitable for smaller households, although those with larger water consumption needs might require a larger capacity model. The product has garnered positive reviews, indicating good performance and reliability, backed by a five-year parts and two-year labor warranty. The product's materials meet BS6920 certification standards, ensuring safety and quality.

Weighing 22.55 kilograms, the unit is sturdy but manageable, though its placement requires measuring available space to ensure it fits as expected. It operates on AC/DC power and withstands pressures up to 5 bars, making it suitable for most domestic setups. This model is well-suited for those prioritizing space efficiency coupled with a straightforward installation process.

The BWT WS355 Standard Electronic Water Softener is designed with family households in mind, offering a compact size that conveniently fits within a kitchen cupboard. This makes it an ideal choice for those with limited space. Its maximum flow rate of 30 litres per minute ensures a robust water flow, suitable for average household needs. With a 14-litre capacity, this softener uses tablet salt, which can be more efficient and easier to handle than other forms of salt.

Ease of installation is a strong point, with an included installation kit and the option of free home commissioning for extra peace of mind. The product's BS6920 certification ensures that all materials used are safe for drinking water. Users will also appreciate the lengthy 5-year parts and 2-year labor warranty, which suggests confidence in the product's durability.

Some potential users might find the lack of specified regeneration type and grain capacity concerning, as these are critical factors for water softening performance and efficiency. The absence of battery requirements indicates it relies on a wired power source, which may limit installation locations to some degree. At 23.2 kg, consider its weight for placement purposes. This water softener is suitable for medium-sized households looking for a straightforward solution, offering ease of use and installation in a compact and efficient package.

The BWT WS455 Hi Flow Electronic Demand Block/Tablet Water Softener is a compact solution designed to fit conveniently in a kitchen cupboard, making it an ideal choice for families looking to save space. Its easy installation process, aided by the included installation kit and a low voltage transformer, ensures a quick setup that doesn’t require professional help. This model is quite user-friendly, with straightforward operation and setup, and it provides the added peace of mind of a 5-year parts warranty and a 2-year labor warranty.

A significant advantage of the WS455 is its special feature for scale and scum reduction, which helps maintain your plumbing and appliances, potentially extending their lifespan. The model’s under-sink installation type is particularly appealing for those with limited space. The product is also BS6920 Certified, ensuring that all materials used are safe for contact with drinking water.

This water softener is well-suited for small to medium-sized households that need an efficient yet compact solution for hard water problems, though potential buyers should consider consulting BWT or a professional for clarity on its performance specifications.