Updated:22 October 2026
Rank 1-17 of the best Water Softeners
Our recommendation Price Customer rating
1. Comparison winner
BWT WS455 Electronic Water Softener, 10 Litre
BWT WS455 Electronic Water Softener, 10 Litre
Available immediately
free shipping
  • family-sized capacity suitable for households
  • fits in a kitchen cupboard for convenient storage
  • easy installation with included installation kit
Our rating
9,8
very good
2. Best value
iSpring WCS15KG Water Softener, 15,000 Grain
iSpring WCS15KG Water Softener, 15,000 Grain
Check delivery time
free shipping
  • high capacity for treating water hardness for cooking, bathing and laundry
  • suitable for installation in businesses, institutions, hospitals and schools
  • easy to install with a one-tank compact design saving space
Our rating
9,6
very good
Monarch Water Softener Ultimate Midi HE
Monarch Water Softener Ultimate Midi HE
Available immediately
free shipping
  • suitable for 1 - 6 people
  • rapid-fit bypass enables easier installation with fewer components by up to 80%
  • 7-year parts and 2-year labour warranty for peace of mind
Our rating
9,6
very good
Monarch Water Softener Ultimate Midi HE WRAS-Approved
Monarch Water Softener Ultimate Midi HE WRAS-Approved
Available immediately
free shipping
  • daily capacity of 2,280 litres
  • under-sink installation with minimal components required
  • easy installation with Rapid-Fit bypass and full installation kit included
Our rating
9,6
very good
5. Bestseller
BWT WS355 Electronic Water Softener, 14 Litre
BWT WS355 Electronic Water Softener, 14 Litre
Available immediately
free shipping
  • suitable for accommodating a family's water softening needs
  • designed to fit inside a kitchen cupboard
  • straightforward installation with inclusive installation kit
Our rating
9,6
very good
BWT WS555 Hi Flow Water Softener 14L
BWT WS555 Hi Flow Water Softener 14L
Available immediately
free shipping
  • fits in a kitchen cupboard
  • easy to install
  • 5 years parts and 2 years labour at home warranty
Our rating
9,6
very good
AquaHouse Large Metered Water Softener System 21 Litre for 5-10 People (Light Commercial)
AquaHouse Large Metered Water Softener System 21 Litre for 5-10 People (Light Commercial)
Available immediately
free shipping
  • capacity of 21 litres for complete scale prevention
  • installation location: tall slim design fits neatly into tall cupboards
  • ease of installation: integrated bypass valve is pre-installed and the unit uses standard 1 inch bsp connections to simplify fitting; 2 metre drain hose included
Our rating
9,6
very good
No reviews yet
Monarch SE-11 Plumbsoft Electric Water Softener with 22mm Maxflow Hoses and 10 kg Salt
Monarch SE-11 Plumbsoft Electric Water Softener with 22mm Maxflow Hoses and 10 kg Salt
Available immediately
free shipping
  • capacity suitable for 1 to 5 people
  • slimline unit designed for easy siting and installation in tight spaces
  • integrated bypass with rapid-fit technology reduces installation components by up to 80%
Our rating
9,5
very good
No reviews yet
Classeq WS16-SK Manual Water Softener 16 L Stainless Steel
Classeq WS16-SK Manual Water Softener 16 L Stainless Steel
Available immediately
free shipping
  • 16 litres capacity
  • intended for under-counter installation
  • stainless steel construction for durability and hygiene
Our rating
9,5
very good
AquaHouse Metered Water Softener System, 9 Litre capacity, for 1-5 person households
AquaHouse Metered Water Softener System, 9 Litre capacity, for 1-5 person households
Available immediately
free shipping
  • 9 litres softening capacity for effective scale prevention
  • fits neatly inside most kitchen cupboards or utility rooms
  • easy installation with pre-installed bypass valve and standard 3/4 inch BSP connections; includes a 2 metre drain hose
Our rating
9,5
very good
DVA 12 Litre Water Softener for Commercial Use
DVA 12 Litre Water Softener for Commercial Use
Available immediately
free shipping
  • 12 litres of capacity for effective water softening in commercial appliances
  • suitable for installation in commercial dishwashers, glasswashers, and coffee machines
  • easy to install with manual salt regeneration system
Our rating
9,4
good
Little Plumber LP1 Water Softener
Little Plumber LP1 Water Softener
Available immediately
free shipping
  • designed for installation close to the rising main
  • no plumbing skills required for installation
  • guaranteed performance with results in up to 7 weeks
Our rating
9,3
good
Water Softener Resin Bed Cleaner, 1 Litre, Iron and Manganese Removal, Concentrated Solution
Water Softener Resin Bed Cleaner, 1 Litre, Iron and Manganese Removal, Concentrated Solution
Available immediately
free shipping
  • one litre bottle of resin cleaner concentrate with a usage ratio of 100 ml per 10 litres of resin to provide multiple uses
  • designed for use in the resin bed of a water softener
  • full usage instructions are included on the packaging
Our rating
9,3
good
50+ purchases last month
25 kg Salt Tablets for Water Softeners - Food Grade, Compatible with All Water Softener Machines, 1 Pack
25 kg Salt Tablets for Water Softeners - Food Grade, Compatible with All Water Softener Machines, 1 Pack
Available immediately
free shipping
  • capacity of 25 kilograms per bag
  • intended for use in tablet water softener systems
  • easy to install in standard water softener units
Our rating
9,3
good
Water Softener Salt Block 3 Pack
Water Softener Salt Block 3 Pack
Available immediately
free shipping
  • 24 kilograms of block salt in total (six blocks of 4 kilograms each)
  • designed for use in the brine tank of most standard block salt water softeners
  • easy to install in standard brine tanks
Our rating
9,1
good
AquaHouse NSWS Water Softener Alternative System – Scale Prevention
AquaHouse NSWS Water Softener Alternative System – Scale Prevention
Available immediately
free shipping
  • Kapazität: peak flow up to 20 litres per minute for short periods and regular flow up to 8 litres per minute
  • Einbauort: wall mounted and connected in line with the cold mains water supply
  • Einfache Installation: fittings are supplied and the system can be wall mounted with an inline connection to the cold mains water supply, installation by a plumber is recommended
Our rating
9,0
good
Ion Exchange Water Softener Resin, 1 L, 2 L and 5 L, WQA Certified, Food Grade
Ion Exchange Water Softener Resin, 1 L, 2 L and 5 L, WQA Certified, Food Grade
Available immediately
free shipping
  • capacity in 1 litre, 2 litre and 5 litre sizes
  • suitable as replacement resin for ion-exchange water softeners or filter cartridges
  • WQA certified to NSF/ANSI 44 and 61 for use in treatment of foods intended for human consumption
Our rating
8,8
good

Similar Water Softener comparisons

Water Softeners buying guide: How to choose the right product from the above Water Softeners test or comparison

Understanding Water Softeners: What Are They and How Do They Work?

What is a Water Softener?

Water softeners are systems designed to reduce hardness in water, which is caused by high levels of minerals like calcium and magnesium. These minerals can cause a range of issues in your home, affecting everything from the efficiency of your appliances to the quality of your skin and hair. Water softeners work through a process known as ion exchange, where the hard minerals in water are replaced with sodium or potassium ions. As hard water flows through the softener, it passes through resin beads that attract and hold onto the calcium and magnesium while releasing sodium or potassium back into the water.

The Mechanics at Play

The functioning of a water softener involves two main phases: the service phase and the regeneration phase. During the service phase, hard water enters the system and undergoes the ion exchange process. Once the resin beads are saturated with hard minerals, the unit switches to the regeneration phase, where a salt solution cleans the beads, restoring their ability to soften water. It’s this cycle that ensures you continually have softened water available, while the system maintains its efficiency.

Why You Should Consider a Water Softener for Your Home

Benefits for Your Home and Appliances

One of the primary reasons to consider a water softener is the protection it offers to your plumbing and appliances. Hard water can lead to significant mineral buildup in pipes, which may restrict water flow and shorten the lifespan of your fixtures. Investing in a water softener can therefore effectively reduce the frequency of repairs and replacements, saving you money in the long run. Additionally, when you use softened water, you’ll notice that your appliances such as dishwashers and washing machines operate more efficiently, furthering potential cost savings on energy bills.

Improvements to Skin and Hair

Softened water can also greatly enhance your daily living experience. Many people report improvements in skin conditions, as hard water often exacerbates dryness and irritation. Showers with soft water leave skin feeling smoother and hair shinier and more manageable. If you spend money on lotions and hair products to combat dryness caused by hard water, you may find that a water softener helps you reduce these purchases.

Choosing the Right Water Softener: Key Features to Look For

Types of Water Softeners

When selecting a water softener, it’s essential to understand the different types available. There are generally two main types: traditional salt-based water softeners and salt-free systems. Salt-based systems offer a more comprehensive solution to hard water issues, while salt-free options are often marketed as maintenance-free but may not fully eliminate hardness. Assessing your water’s hardness level will guide you in making the right choice.

Capacity and Size Considerations

Next, we need to consider the size of the unit. Water softeners come with varying capacities, typically measured in grains. Your household size and water usage will play a crucial role in determining the appropriate capacity. Understanding your family’s daily water needs will enable you to select a softener that can handle the demand without frequent regenerations.

Additional Features

Look for features such as a digital control panel, which can simplify operation and troubleshooting. Some models offer settings that allow you to customise regeneration cycles based on your usage patterns. Other convenient features might include a low-salt indicator or a bypass valve, enabling you to skip the softening process when necessary.

Installation and Maintenance Tips for Your Water Softener

Installation Requirements

Installing a water softener usually requires access to your home’s plumbing system, making it a bit more involved than simple appliances. While some homeowners feel confident in taking on the installation themselves, others may prefer to hire a professional to ensure it’s done correctly. It’s essential to have a nearby power source and a drainage point for the unit’s backflushing process.

Regular Maintenance Tasks

To keep your water softener functioning optimally, regular maintenance is essential. This typically involves monitoring the salt levels in the brine tank and replenishing them as necessary, usually every month or so depending on usage. Additionally, it’s good practice to check for leaks and ensure the resin beads remain in good condition and do not require replacement.

Cost Considerations: Finding the Best Value for Your Investment

Initial Purchase and Installation Costs

The price of a water softener can vary considerably, depending on its size and type. Generally, you can expect to spend anywhere from a few hundred to a couple of thousand pounds. Factor in installation costs as well if you opt for professional help. Understanding the upfront costs is crucial in evaluating the long-term value.

Long-Term Savings and Value

Although the initial investment might seem high, consider the long-term savings on appliance longevity, energy efficiency, and reduced use of soaps and detergents. Many homeowners find that their water softening systems quickly pay for themselves. By improving the overall efficiency of your home and conserving your plumbing, a water softener is not an expense but rather a wise investment.

Table of contents
  1. Understanding Water Softeners: What Are They and How Do They Work?
  2. Why You Should Consider a Water Softener for Your Home
  3. Choosing the Right Water Softener: Key Features to Look For
  4. Installation and Maintenance Tips for Your Water Softener
  5. Cost Considerations: Finding the Best Value for Your Investment

Overview

1. Comparison winner
BWT WS455 Electronic Water Softener, 10 Litre
Our rating
9,8
very good
BWT WS455 Electronic Water Softener, 10 LitreAvailable immediately
2. Best value
iSpring WCS15KG Water Softener, 15,000 Grain
Our rating
9,6
very good
iSpring WCS15KG Water Softener, 15,000 GrainCheck delivery time
Monarch Water Softener Ultimate Midi HE
Our rating
9,6
very good
Monarch Water Softener Ultimate Midi HEAvailable immediately
Monarch Water Softener Ultimate Midi HE WRAS-Approved
Our rating
9,6
very good
Monarch Water Softener Ultimate Midi HE WRAS-ApprovedAvailable immediately
5. Bestseller
BWT WS355 Electronic Water Softener, 14 Litre
Our rating
9,6
very good
BWT WS355 Electronic Water Softener, 14 LitreAvailable immediately
BWT WS555 Hi Flow Water Softener 14L
Our rating
9,6
very good
BWT WS555 Hi Flow Water Softener 14LAvailable immediately
AquaHouse Large Metered Water Softener System 21 Litre for 5-10 People (Light Commercial)
Our rating
9,6
very good
No reviews yet
AquaHouse Large Metered Water Softener System 21 Litre for 5-10 People (Light Commercial)Available immediately
Monarch SE-11 Plumbsoft Electric Water Softener with 22mm Maxflow Hoses and 10 kg Salt
Our rating
9,5
very good
No reviews yet
Monarch SE-11 Plumbsoft Electric Water Softener with 22mm Maxflow Hoses and 10 kg SaltAvailable immediately
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