10 Best Water Softeners 2025 in the UK

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 Monarch Water Ultimate Midi HE WRAS-approved Water Softener is designed for households of up to six people, making it a suitable choice for medium-sized families. Its WRAS approval indicates high quality and durability, which is reassuring for long-term use. The product promises to remove existing limescale and prevent new build-up, which can protect appliances and be gentler on skin and hair.

One of its standout features is the sustainable and efficient performance, reportedly saving money over time. The water softener has an impressive maximum flow rate of 78 litres per minute, ensuring that water pressure remains adequate even during peak usage. The inclusion of a Rapid-Fit bypass reduces installation complexity, requiring fewer components, which is a significant convenience.

This model provides a daily capacity of 2,280 litres at 300ppm, supporting a sufficient amount of softened water daily. The programmable feature offers added flexibility and control over its operations. Its relatively compact size at 48.5 x 27 x 55.5 cm ensures it can fit well under-sink or in tight spaces, though installation is custom and may require professional assistance. The 7-year parts and 2-year labor warranty is a substantial benefit, providing peace of mind.

Potential buyers should consider the product's weight of 20 kilograms, which might be cumbersome for some installations. The setup seems user-friendly with provided installation kit and water hardness test kit, which aids users in getting optimal results. This water softener seems well-suited for those prioritizing efficiency, ease of installation, and protective benefits for household water systems.