It is one of the most common questions we receive at SBM Water UK — and understandably so. Walk into any conversation about water filtration and you will quickly encounter a range of technologies, each with its own strengths and applications. The right system depends entirely on your water quality, your property, and what you want your water to deliver.
This guide cuts through the complexity and helps you make the right choice — with confidence.
Step One: Know Your Water
Before selecting any filtration system, it is essential to understand what is actually in your water supply. The challenges vary considerably across the UK:
- Hard water areas — London, the South East, East Anglia, and the East Midlands suffer from high calcium and magnesium content, causing limescale in appliances and pipework
- Older properties — Homes with ageing copper or lead pipework may see elevated heavy metal levels at the point of use
- Rural locations — Properties supplied from private boreholes or wells may require protection against bacteria, nitrates, or agricultural runoff
- Urban supplies — Higher chlorine and chloramine levels are common in densely populated areas
“A complimentary water quality assessment from SBM Water UK will tell you exactly what is in your supply — so your filtration solution is always matched to the problem.”
The Main Filtration System Types
Under-Sink Filters
Installed discreetly beneath your kitchen sink, these systems connect directly to your cold water supply and deliver filtered water through a dedicated tap. They are ideal for households seeking clean, great-tasting drinking and cooking water without altering the wider supply. Options range from single-stage carbon filters to multi-stage systems that remove chlorine, heavy metals, and sediment.
Best for: Homeowners who want premium drinking water quality at the kitchen tap.
Reverse Osmosis (RO) Systems
Widely regarded as the most thorough point-of-use filtration technology available, reverse osmosis forces water through a semi-permeable membrane, removing up to 99% of dissolved contaminants — including heavy metals, fluoride, nitrates, microplastics, and pharmaceutical traces. Many premium RO systems include a remineralisation stage, restoring beneficial calcium and magnesium at optimal levels for taste and health.
Best for: Households and businesses demanding the highest possible water purity, particularly in areas with elevated heavy metal or chemical content.
Water Softeners/ water conditioners
Specifically designed to address hard water, a water softener replaces the calcium and magnesium ions responsible for limescale with sodium ions, delivering soft water throughout the entire property. The result is a dramatic reduction in scale buildup on appliances, taps, showers, and pipework — extending equipment lifespan and improving the efficiency of your heating system.
Best for: Properties in hard water regions experiencing limescale damage to appliances, boilers, and plumbing.
Whole-House Filtration Systems
A whole-house system is installed at the point where your mains supply enters the property, ensuring that every tap, shower, appliance, and outlet receives filtered water. These systems typically combine sediment filtration, activated carbon, and in some configurations, UV sterilisation. They are the premium choice for households and commercial premises that want comprehensive water quality throughout, not just at the kitchen tap.
Best for: Families who want filtered water at every outlet, and businesses where water quality affects the product or customer experience.
UV Sterilisation Systems
Ultraviolet sterilisation uses specific light frequencies to neutralise bacteria, viruses, and other microorganisms without the use of chemicals. UV systems are particularly relevant for properties drawing from private boreholes, wells, or any supply where microbiological contamination is a concern.
Best for: Rural or off-mains properties, or as a final-stage addition to an existing filtration setup.
How to Choose the Right System
The most effective filtration solution is almost never a single product selected from a shelf. It is a system chosen specifically for your water profile, your property type, and your priorities. At SBM Water UK, every recommendation begins with a proper assessment — because the right filter for a Victorian townhouse in London is not the same as the right filter for a modern office block in Manchester.
“Premium water solutions are never off-the-shelf. They are precisely matched, expertly installed, and built to perform for years.”
Our specialist team will assess your water supply, identify the contaminants present, and recommend a tailored solution from our range of world-class filtration systems. Whether you need a single under-sink unit or a full whole-house treatment programme, we deliver to the standard that SBM Water UK has built its reputation upon.
Contact SBM Water UK today to arrange your complimentary water quality assessment and take the first step towards truly exceptional water.
